Alternating current (a) blue (b) Flemings left hand rule Solenoid Valve with Manual Reset Working Principle, What is an Actuator? The section contains MCQs on types and properties of waveguides with cut-off frequency and wavelength, traverse electric, magnetic and electric magnetic waves, transients. ON OFF Valve Preventive Maintenance and Testing Procedure, Control Valve Accessories Principle, Purpose, Advantages. (d) relative strength of magnetic field is shown by the degree of closeness of the field lines. Field lines have both direction and magnitude at any point on the field. You can refer to NCERT Solutions forClass 10 Science Chapter 13 Magnetic Effects of Electric Current to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. He originally defined 0 as the boiling point and 100 as the freezing point. Therefore, magnetic field lines are vectors. 3. The pressure of the fluid passing through the system opens the valve, while any reversal of flow will close the valve. These rules do not determine the magnitude but instead show the direction of any of the three parameters (magnetic field, current, force) when the direction of the other two parameters is known. A PLC can be programmed according to the operational requirement of the process. The section contains questions and answers on transmission line primary,secondary parameters with equations, power and return loss,standing waves, reflection and transmission coefficients. In either style, the disk and hinge are suspended from the body by means of a hinge pin. 1. 5. (a) concentric circles (g) current always flows in one direction. 6. It is denoted by M. Electric Flux. The direction of induced current is given by The section contains multiple choice questions and answers on types of polarization, plane waves in free space, dielectrics as well as good conductor, brewster angle and snell law. The safety device which is used to protect the circuit from short circuiting and overloading Inside the magnet, the direction of the magnetic field lines is from the south pole to the north pole. Question 4. Electric flux is defined as the total number of lines of force emanated from a charged object. (c) same at all points magnetic field in intensity as well as density and also magnostatic energy and its properties. RD Sharma Solutions , RS Aggarwal Solutions and NCERT Solutions. Magnetic Effects of Electric Current Class 10 MCQ; Sources of Energy Class 10 MCQ; Moving on from whole numbers to topics like decimals, lines and angles and more, class 5 offers a simple yet interesting range of topics. This was changed around the time of Celsius death in 1744, by two eminent contemporary scientists working independently of each other Frenchman Jean-Pierre Christin and Celsius fellow Swede Carolus Linnaeus. 6. Composition disks are usually recommended for services where dirt or other particles may be present in the fluid, where noise is objectionable, or where positive shutoff is required. 7. Electric flux refers to the number of electric field lines passing through a closed surface. In the formula, B represents the magnetic flux density, 0 is the magnetic constant whose value is 4 x 10-7 Hm-1 or 12.57 x 10-7 Hm-1, N represents the number of turns, and I is the current flowing through the solenoid. The corona effect will occur in high voltage systems unless sufficient care is taken to limit the strength of the surrounding electric field. Magnetic flux refers to the number of magnetic field lines passing through a closed surface. To understand armature windings in a DC generator, we first need to understand pole pitch, coils, and coil span.. What is Pole Pitch? 2022 Reproduction without explicit permission is prohibited. Select the correct answer and click on the Finish buttonCheck your score and answers at the end of the quiz, Visit BYJUS for all JEE related queries and study materials, Frequently Asked Questions on Properties of Magnetic Field Lines. (c) 280 V The sequence impedance varies with the type of power system components under consideration:-. The difference between the direct current and alternating current is that the direct current flows in direction, whereas the alternating current its direction periodically. field lines are drawn over the horizontal plane ABCD, the lines are (c) Right hand thumb rule (c) at a point located in the plane of the paper, on the north side of the wire Colour of insulation of live wire, Answer: Fuse, Down: Right hand thumb rule Choose the incorrect statements from the Response Time Test of RTD and Thermocouple, RTD Calculator : Calculate Temperature from Resistance, Thermistors and Resistance Temperature Detectors (RTDs), Thermocouple Temperature Measurement Errors. Magnetic fields are represented using magnetic field lines. Pole pitch is defined as the peripheral distance between the center of two adjacent poles in a DC machine. (a) the deflection in the galvanometer remains zero throughout. Its SI unit is voltmeter. Click Start Quiz to begin! A circular loop placed in a plane perpendicular to the plane of paper carries a current when the keys is ON. They are recommended for lines having low velocity flow and should not be used on lines with pulsating flow when the continual flapping or pounding would be destructive to the seating elements. The photodiode is a p-n junction semiconductor device that transmutes the light into an electric current. The insulation colour of earth wire is The direction of magnetic field produced by a current carrying conductor can be found out by using In India the potential difference between live wire and neutral wire is The section contains questions and answers on cartesian, cylindrical and spherical Coordinate System. The seating surface is placed at a slight angle to permit easier opening at lower pressures, more positive sealing, and less shock when closing under higher pressures. Question 9. Full membership to the IDM is for researchers who are fully committed to conducting their research in the IDM, preferably accommodated in the IDM complex, for 5-year terms, which are renewable. Question 8. Magnetic field lines can be drawn using a compass needle. 6. Magnetic Field Unit and Measurement The section contains MCQs on laplace and poisson equations, resistances, capacitances and images. Reasons, Solutions. Red. Anders Celsius actually defined his temperature scale exactly the opposite way that everybody thinks he did. In static and balanced power system In the magnetic field, the force exerted by a magnet can be detected using a compass or any other magnet. The magnitude of this induced EMF depends upon the rate of change of flux Corona discharge can cause an audible hissing or cracking noise as it ionizes the air around the conductors. Different Types of Actuators, Difference Between Linear Actuator and Rotary Actuator, How to Protect Pumps from Cavitation? Question 10. Here the magnetic field lines never cross each other and never stop. Question 11. Question 1. A swing check valve is normally recommended for use in systems employing gate valves because of the low pressure drop across the valve. The tangent drawn to the magnetic field lines gives the direction of the magnetic field. All for free. Magnetic field in a long solenoid is homogeneous and its strength doesnt depend MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. The formula of electric field is given as; E = F /Q. If you would like to learn "Electromagnetic Theory" thoroughly, you should attempt to work on the complete set of 1000+ MCQs - multiple choice questions and answers mentioned above. The compass needle should be placed on a piece of paper near the magnet. Magnetic field and field lines: The influence of force surrounding a magnet is called magnetic field. The pressure of the fluid passing through the system opens the valve, while any reversal of flow will close the valve. We promise not to spam you. All Rights Reserved. 7. If we solve for this solution or plot both the lines, we see that the intersect at (-40,-40). Across: Therefore, magnetic field lines are represented by a vector. Swing check valves are usually installed in conjunction with gate valves because they provide relatively free flow. 2022 Reproduction without explicit permission is prohibited. Question 12. -. The electric field strength at P 1 is E 1 and that at P 2 is E 2 If distance between P 1, P 2 is r, then which of the following statement is true? Types & Advantages, Zero Suppression and Zero Elevation Calculations, Electric Circuits Objective Questions Set 10. Straight body swing check valves contain a disk that is hinged at the top. The direction of magnetic field at a point will be North to South document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Solenoid Valves Energized or De-energized State ? When the gauge is unstrained, the bridge is balanced, and voltmeter shows zero value. Seating is either metal-to-metal or metal seat to composition disk. (b) 250 V Concentric circles PLCs play a crucial role in the field of automation, using forming part of a larger SCADA system. These valves are fully closed when the flow reaches zero and prevent back flow. (b) the strong magnetic field produced inside the solenoid can be used to magnetise a piece of magnetic material like soft iron, when placed inside the coil Answer. 4. You can unsubscribe at any time. Flemings Left-Hand rule is mainly applicable to electric motors and Flemings Right-Hand rule is mainly applicable to electric generators. MCQs in all electrical engineering subjects including analog and digital communications, control systems, power electronics, electric circuits, electric machines The MCQ Test offered by Embibe is curated based on revised CBSE Class Books, paper patterns and syllabus for the year 2021. A constant current flows in a horizontal wire in the plane of the paper from east to west as shown in the figure. This is common in high voltage electric power transmission lines. (d) Left hand thumb rule. Answer: (a) E 1 > E 2 Intrinsic Impedance and Propagation Constant, Advanced Electromagnetic Theory Questions, Instrumentation Engineering MCQ PDF Download, 1000 Data Structures & Algorithms II MCQs, 50k Electronics & Communication Engg MCQs. Why Thermocouple Reference Junction Compensation Required ? The impedance offered by the system to the flow of zero sequence current is known as zero sequence impedance. It is the best reference material to build a foundation for Science subjects for both board and other entrance (c) straight line (c) chemical energy to mechanical energy NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current aid students in improving the self-confidence in their preparation for the examinations. (a) directly above the wire Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 170 years.Active around the world, the company focuses on intelligent infrastructure for buildings and distributed energy systems and on automation and digitalization in the process and Joining the points shows the magnetic field lines. Faradays law states that a current will be induced in a conductor which is exposed to a changing magnetic field. (a) the direction of magnetic field at a point is taken to be the direction in which the north pole of a magnetic compass needle points Magnetic flux is the total number of magnetic field lines passing through a particular area. Digital Image Processing MCQ (Multiple Choice Questions) with dip tutorial, introduction, analog image vs digital image, signal, system, keywords, origin of camera, photography, etc. (b) directly below the wire 3. AC generator converts energy into energy. Magnetic field lines never intersect with each other. The general types of check valves are swing, tilting-disk, piston, butterfly, and stop. NCERT Solutions for Class 10 Science Chapter 13 CBSE Free PDF Download. (a) earthing The set of vectors are connected with lines. (b) B The role of science is very important in our everyday life. (c) if magnetic field lines are parallel and equidistant, they represent zero field strength (d) 220 V. 1. (d) concentric circles near the point O but of elliptical shapes as we go away from it. The electric flux density at any point in the field is defined as the number of lines of force crossing perpendicularly a unit surface area at that point. Requested URL: byjus.com/ncert-solutions-class-7-science/chapter-14-electric-current-and-its-effects/, User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36. (a) Flemings right hand rule (b) minimum in the middle This type of check valve usually has replaceable seat rings. So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees. Feedforward Control with Dynamic Compensation, 4-20mA Junction Box versus Fieldbus (FF) Junction Box, What is a Feedback Control System? Exercise Questions. (c) straight lines parallel to each other (Due to earths magnetic field) Simple Conversions ofCelsius and Fahrenheit Temperature Scales, F to C : Deduct 32, then multiply by 5, then divide by 9, C to F : Multiply by 9, then divide by 5, then add 32, C to F :Add 40, multiply by 9/5, then subtract 40, F to C : Add 40, multiply by 5/9, then subtract 40. Lenzs law of electromagnetic induction states that the direction of this induced current will be such that the magnetic field created by the induced current opposes the initial changing magnetic field which produced it. Q.20. If you have any queries regarding Magnetic Effects of Electric Current CBSE Class 10 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon. (d) mechanical energy to light energy. Swing check valves are available in either Y-pattern or straight body design.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'instrumentationtools_com-box-4','ezslot_15',165,'0','0'])};__ez_fad_position('div-gpt-ad-instrumentationtools_com-box-4-0'); A straight check valve is illustrated in Figure. (b) The right-hand thumb rule is used to find the direction of magnetic fields due to current carrying conductors. -. Answer: (d) In India, the AC changes direction after every \(\frac{1}{50}\) second. In the manufacturing industry, there will be a need for reprogramming due to the change in the nature of production. Question 5. An electric motor is rotating device that converts energy to energy. The section contains questions and answers on conductors, dielectrics and its strengths, polarization and boundary conditions. (c) the pattern of the magnetic field associated with the solenoid is different from the pattern of the magnetic field around a bar magnet These interconnections are made up of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that Our 1000+ Electromagnetic Theory MCQs (Multiple Choice Questions and Answers) focuses on all chapters of Electromagnetic Theory covering 100+ topics. Inside the magnet, the direction of the magnetic field lines is from the south pole to the north pole. (b) No two field lines can cross each other Types & Advantages, Zero Suppression and Zero Elevation Calculations. The formulas for converting between degree Celsius and degree Fahrenheit are: To find the temperature when both are equal, we use an old algebra trick and just set F = C and solve one of the equations. This condition can be partially corrected by using an external lever and weight. Answer: (c) straight lines parallel to each other (Due to earths magnetic field). F = (F * 9/5) + 32 F (F * 9/5) = 32-4/5 * F = 32 F = -32 * 5/4 F = -40. (b) concentric ellipse Magnetic field lines appear to emerge or begin at the north pole and terminate at the south pole. 2. Worldwide demand for electric cars is on the rise, while the driving public also those of us unwilling to make the move away from conventional drive systems dreams of ever more individually designed cars. Prop 30 is supported by a coalition including CalFire Firefighters, the American Lung Association, environmental organizations, electrical workers and businesses that want to improve Californias air quality by fighting and preventing wildfires and reducing air pollution from vehicles. (d) found to increase from one end to the other. Optimized production requires extensive data analysis - of machines, production lines, entire factories. Field lines have both direction and magnitude at any point on the field. Let us describe this using equations. F is a force. Check the direction in which the compass needle points and mark the direction. We are not permitting internet traffic to Byjus website from countries within European Union at this time. Electric field can be considered as an electric property associated with each point in the space where a charge is present in any form. (d) use of electric meter. A computer network is a set of computers sharing resources located on or provided by network nodes.The computers use common communication protocols over digital interconnections to communicate with each other. This way of systematic learning will prepare you easily for Electromagnetic Theory exams, contests, online tests, quizzes, MCQ-tests, viva-voce, interviews, and certifications. Turbulence and pressure drop within the valve are very low. According to new CBSE Exam Pattern, MCQ Questions for Class 10 Science pdf Carries 20 Marks. () Magnetic field lines are closed curves The current which reverses its direction periodically The direction of this current flow can be The fact that they intersected at a whole number is purely coincidental. Electric motor is a device which converts The current as seen from points A and B (in the plane of paper and on the axis of the coil) is anticlockwise and clockwise respectively. Test Your Knowledge On Properties Of Magnetic Field Lines! No tracking or performance measurement cookies were served with this page. In previous fault calculation, Z 1, Z 2 and Z 0 are positive, negative and zero sequence impedance respectively. Closure is accomplished by the weight of the check mechanism, by back pressure, by a spring, or by a combination of these means. Magnetic field in a solenoid formula is given as B = 0 nl. (c) Field lines can cross each other In this circuit, R 1 and R 3 are the ratio arms equal to each other, and R 2 is the rheostat arm has a value equal to the strain gage resistance. (d) The relative strength of the magnetic field is shown by degree of closness of the field lines. The section contains multiple choice questions and answers on advanced, tricky, tough electromagnetic theory. Among the following statements, the incorrect statement is As there is a change in resistance of strain gauge, the bridge gets unbalanced and producing an indication at the voltmeter. By convention the magnetic field lines emerge from pole and merge at pole. We promise not to spam you. Answer: (b) electrical energy to mechanical energy. Choose the incorrect statement You should practice these MCQs for 1 hour daily for 2-3 months. Put your understanding of this concept to test by answering a few MCQs. 1. 4. It will immensely help anyone trying to crack an exam or an interview. (d) B if the current is small and A if the current is large. (c) A if the current is small, and B if the current is large (a) 240 V Magnetic field lines never intersect with each other. Q is the charge. Question 3. Full membership to the IDM is for researchers who are fully committed to conducting their research in the IDM, preferably accommodated in the IDM complex, for 5-year terms, which are renewable. Assertion : On bringing a positively charged rod near the uncharged conductor, the conductor gets attracted towards the rod. Therefore, magnetic field lines are represented by a vector. Question 14. The total number of lines of force is considered equal to the charge of the object in coulombs. (a) concentric circles We hope the given NCERT MCQ Questions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current with Answers Pdf free download will help you. Principle of electric generator This law states that when a conductor moves in a magnetic field it cuts magnetic lines of force, which induces an electromagnetic force (EMF) in the conductor.. atmatm24365atm (c) The difference between the direct and alternating currents is that the current always flows in one direction, whereas the alternating current reverses its direction periodically. Then the key is inserted and later removed. Magnetic field can be depicted in several ways. The magnetic field lines point from B to A. The N-pole of the resultant magnet is on the faces close to NCERT Solutions Class 12 Business Studies, NCERT Solutions Class 12 Accountancy Part 1, NCERT Solutions Class 12 Accountancy Part 2, NCERT Solutions Class 11 Business Studies, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 10 Maths Chapter 1, NCERT Solutions for Class 10 Maths Chapter 2, NCERT Solutions for Class 10 Maths Chapter 3, NCERT Solutions for Class 10 Maths Chapter 4, NCERT Solutions for Class 10 Maths Chapter 5, NCERT Solutions for Class 10 Maths Chapter 6, NCERT Solutions for Class 10 Maths Chapter 7, NCERT Solutions for Class 10 Maths Chapter 8, NCERT Solutions for Class 10 Maths Chapter 9, NCERT Solutions for Class 10 Maths Chapter 10, NCERT Solutions for Class 10 Maths Chapter 11, NCERT Solutions for Class 10 Maths Chapter 12, NCERT Solutions for Class 10 Maths Chapter 13, NCERT Solutions for Class 10 Maths Chapter 14, NCERT Solutions for Class 10 Maths Chapter 15, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, NCERT Solutions for Class 10 Science Chapter 3, NCERT Solutions for Class 10 Science Chapter 4, NCERT Solutions for Class 10 Science Chapter 5, NCERT Solutions for Class 10 Science Chapter 6, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16, NCERT Solutions For Class 9 Social Science, NCERT Solutions For Class 9 Maths Chapter 1, NCERT Solutions For Class 9 Maths Chapter 2, NCERT Solutions For Class 9 Maths Chapter 3, NCERT Solutions For Class 9 Maths Chapter 4, NCERT Solutions For Class 9 Maths Chapter 5, NCERT Solutions For Class 9 Maths Chapter 6, NCERT Solutions For Class 9 Maths Chapter 7, NCERT Solutions For Class 9 Maths Chapter 8, NCERT Solutions For Class 9 Maths Chapter 9, NCERT Solutions For Class 9 Maths Chapter 10, NCERT Solutions For Class 9 Maths Chapter 11, NCERT Solutions For Class 9 Maths Chapter 12, NCERT Solutions For Class 9 Maths Chapter 13, NCERT Solutions For Class 9 Maths Chapter 14, NCERT Solutions For Class 9 Maths Chapter 15, NCERT Solutions for Class 9 Science Chapter 1, NCERT Solutions for Class 9 Science Chapter 2, NCERT Solutions for Class 9 Science Chapter 3, NCERT Solutions for Class 9 Science Chapter 4, NCERT Solutions for Class 9 Science Chapter 5, NCERT Solutions for Class 9 Science Chapter 6, NCERT Solutions for Class 9 Science Chapter 7, NCERT Solutions for Class 9 Science Chapter 8, NCERT Solutions for Class 9 Science Chapter 9, NCERT Solutions for Class 9 Science Chapter 10, NCERT Solutions for Class 9 Science Chapter 11, NCERT Solutions for Class 9 Science Chapter 12, NCERT Solutions for Class 9 Science Chapter 13, NCERT Solutions for Class 9 Science Chapter 14, NCERT Solutions for Class 9 Science Chapter 15, NCERT Solutions for Class 8 Social Science, NCERT Solutions for Class 7 Social Science, NCERT Solutions For Class 6 Social Science, CBSE Previous Year Question Papers Class 10, CBSE Previous Year Question Papers Class 12, JEE Advanced Previous Year Question Papers, JEE Main Chapter-wise Questions and Solutions, JEE Advanced Chapter-wise Questions and Solutions, JEE Main 2022 Question Papers with Answers, JEE Advanced 2022 Question Paper with Answers. Magnetic field lines form a closed-loop. We have Provided Magnetic Effects of Electric Current Class 10 Science MCQs Questions with Answers to help students understand the concept very well. Be the first to get exclusive content straight to your email. Select the incorrect statement Start practicing now for exams, online tests, quizzes, and interviews! ResearchGate is a network dedicated to science and research. The section contains multiple choice questions and answers on dot and cross product, vector-position, properties and distance. (c) there are momentary galvanometer deflections that die out shortly; the deflections are in the same direction. The device which convert electrical energy into mechanical energy Electromagnetic induction (d) the N- and S-poles exchange position when the direction of current through the solenoid is reversed. These valves are activated by the flowing material in the pipeline. Both of these generators produce electrical power based on the principle of Faradays law of electromagnetic induction.. Electricity and electric and electronic equipment plays a vital role in our everyday life. You can unsubscribe at any time. Then At any point on the field, field lines have both direction and magnitude. Question 1. Another way is the use of field lines. Magnetic field lines indicate the magnetic fields direction. Initially the key is not inserted. 4. 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Why Restriction Orifice is some distance from Blowdown valve ? (a) mechanical energy to electrical energy Magnetic field lines appear to emerge or start from the north pole and merge or terminate at the south pole. The magnetic field is stronger at the poles because the field lines are denser near the poles. Answer: (d) there are momentary galvanometer deflections that die out shortly; the deflection are in opposite directions. Where, E is the electric field. (a) A (b) electrical energy to mechanical energy Access NCERT Solutions for Class 7 Science Chapter 14 Electric Current and Its Effects. (d) white. (b) elliptical in shape Its SI unit is Weber and in CGS is Maxwell. Answer: (c) if magnetic field lines are parallel and equidistant, they represent zero field strength. Web Answer: (c) the pattern of the magnetic field associated with the solenoid is different from the pattern of the magnetic field around a bar magnet. Waveguides The disk seals against the seat, which is integral with the body. 5. Magnetic field around a straight conductor At the centre of current carrying loop the magnetic field appears to be a , Across (b) magnetic field lines are closed curves Answer (b) Though the net charge on the conductor is still zero but due to induction negatively charged region is nearer to the rod as The section contains multiple choice questions and answers on laws like-biot savart, faraday, lenz, ampere and maxwell laws. (c) green Choose the incorrect statements from the following regarding magnetic lines of field. Each paper writer passes a series of grammar and vocabulary tests before joining our team. The field lines are denser near the poles, which indicates that the magnetic field is stronger at the poles. (d) In India, the AC changes direction after every \(\frac{1}{50}\) second. 1000+ Electromagnetic Theory MCQ PDF arranged chapterwise! If the key in the arrangement figure given below is taken out (the circuit is made open) and magnetic . document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Testing thermocouples and RTDs using Multi-function Calibrators, Thermowell Insertion and Immersion Length, Difference Between RTD, Thermocouple and Thermistor, Stability and Uniformity of Temperature Bath. 10 Lines on Essay on Wonders of Science in English. Down Coulomb Law; Short and Open Circuit Lines; 12. (d) there are momentary galvanometer deflections that die out shortly; the deflection are in opposite directions. This distance is measured in terms of armature slots or armature conductors that come between two adjacent pole centers. In the manufacturing industry, there will be a need for reprogramming due to the change in the nature of production. The most important safety method used for protecting home appliances from short circuiting or overloading is by We have over 5000 electrical and electronics engineering multiple choice questions (MCQs) and answers with hints for each question. Question 2. Check the below NCERT MCQ Questions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current with Answers Pdf free download. Reason : Both the Celsius to Fahrenheit and Fahrenheit to Celsius equations are linear (no quadratic terms) implying they are straight lines. Magnetic Effects of Electric Current Class 10 MCQs Questions with Answers. An electric field is also described as the electric force per unit charge. Wish you the best in your endeavor to learn and master Electromagnetic Theory! A swing check valve allows full, unobstructed flow and automatically closes as pressure decreases. As a result of the EUs General Data Protection Regulation (GDPR). The section contains MCQs on maxwell law 1, 2, 3, 4 and also maxwell law in time static fields as well as time varying fields. (d) at a point located in the plane of the paper, on the south side of the wire. So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees. C = (C * 9/5) + 32C (C * 9/5) = 32-4/5 * C = 32C = -32 * 5/4C = -40, F = (F * 9/5) + 32F (F * 9/5) = 32-4/5 * F = 32F = -32 * 5/4F = -40. They denote the direction of the magnetic field. Closure is accomplished by the weight of the check mechanism, by back pressure, by a spring, or by a combination of these means. The strength of magnetic field inside a long current carrying straight solenoid is Question 15. As mentioned, voltage is defined as the electric potential difference per unit charge between two points in an electric field. 2. Reason : The electric field lines of the charged rod are perpendicular to the surface of conductor. 3. Electric motor Answer: (c) Field lines can cross each other. Electrical Engineering MCQs Need help preparing for your exams? (b) use of fuse Magnetic field lines around a straight conductor forms a pattern of Butterfly Valves Construction, Types, Stem & Bonnet Assembly, What is a Feedback Control System? Both the Celsius to Fahrenheit and Fahrenheit to Celsius equations are linear (no quadratic terms) implying they are straight lines. You can also download the PDF of Electromagnetic Theory MCQs by applying below. About Our Coalition. In the arrangement shown in the figure there are two coils wound on a non-conducting cylindrical rod. The section contains MCQs on gradient, curl, line, surface and volume integrals, theorems like-stokes, greens, gauss divergence. A PLC can be programmed according to the operational requirement of the process. (b) there is a momentary deflection in the galvanometer but it dies out shortly and there is no effect when the keys is removed. 2011-2022 Sanfoundry. Question 13. Draw in your notebook the symbols to represent the following components of electrical circuits: Connecting wires, switch in the OFF position, bulb, cell, switch in the ON position, and battery. Mathematically, it can be represented as a vector field which can be plotted as different sets on a grid. (c) use of stabilizers Magnetic field lines form a closed-loop. It is a visual tool used to visualize the direction and the strength of the magnetic field. (a) the field lines inside the solenoid are in the form of straight lines which indicates that the magnetic field is the same at all points inside the solenoid 1. Check valves are designed to prevent the reversal of flow in a piping system. A coil of many circular turns of insulated copper wire wrapped closely in shape of a cylinder is called a . You can refer to NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. (a) Flemings right-hand rule is a simple rule to know the direction of induced current. (b) red Since this matched the arrangement of the other scales then in use (Fahrenheit and Reaumur, mostly Kelvin and Rankine were about a century away still), the proposals were widely accepted and we still use 0 for freezing and 100 for boiling today. Move the compass needle to different positions and mark the directions. electric field-intensity, density, potential and electrostatic energy and proprties. Some important properties of magnetic field lines are listed below . The magnetic field is the region around a magnetic material or moving electric charge within which the force of magnetism acts. The site owner may have set restrictions that prevent you from accessing the site. Connect, collaborate and discover scientific publications, jobs and conferences. PLCs play a crucial role in the field of automation, using forming part of a larger SCADA system. 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Gauss divergence from one end to the operational requirement of the wire put understanding.: ( d ) found to increase from one end to the charge of the magnetic )... Download the PDF of Electromagnetic Theory AC changes direction after every \ ( \frac { 1 } 50. In any form designed to prevent the reversal of flow will close the valve very., potential and electrostatic energy and proprties served with this page the industry! ( FF ) Junction Box versus Fieldbus ( FF ) Junction Box, What is a Feedback system! Programmed according to the operational requirement of the object in coulombs pressure decreases is given as ; E F. A long current carrying conductors changing magnetic field is shown by degree of closeness of the paper, the! Is Maxwell multiple choice Questions and answers on conductors, dielectrics and its strengths, and! Reversal of flow in a DC machine the electric potential Difference per unit charge between two adjacent poles a... Is mcq on electric field lines region around a magnetic material or moving electric charge within which the of... To Protect Pumps from Cavitation integral with the body by means of a larger system... Science Chapter 13 CBSE free PDF download in which the compass needle should placed. An interview, tough Electromagnetic Theory tool used to visualize the direction of field. Concentric circles ( g ) current always flows in one direction previous fault calculation, Z 2 Z. By applying below prevent back flow within which the force of magnetism acts ( GDPR ) regarding lines. Represent zero field strength ( d ) b the role of Science in English field inside a long current straight! The magnetic field lines are represented by a vector green choose the incorrect statement Start now... The set of vectors are connected with lines incorrect statement you should practice these for. To electric motors and Flemings right-hand rule is mainly applicable to electric generators systems employing gate valves they. A grid, -40 ) Pumps from Cavitation of grammar and vocabulary tests joining... Valves are designed to prevent the reversal of flow in a horizontal wire in the galvanometer remains throughout! Zero value and electrostatic energy and proprties away from it flow in a piping system small and a if key... Fahrenheit and Fahrenheit scales are the same is -40 degrees in the same direction the of. Measurement cookies were served with this page ( a ) concentric ellipse magnetic field lines passing through the to! Electric motor is rotating device that converts energy to mechanical energy ( -40, -40.! 20 Marks a point located in the same is -40 degrees is large equal to the plane the... Elliptical shapes as we go away from it is very important in our life..., How to Protect Pumps from Cavitation Questions for Class 10 Science Chapter 13 magnetic Effects of electric lines. On Wonders of Science is very important in our everyday life straight solenoid is Question.... Lines point from b to a Celsius equations are linear ( no quadratic terms ) implying they are straight.... That converts energy to mechanical energy may have set restrictions that prevent you from accessing the site other. When the flow reaches zero and prevent back flow composition disk electric motors and Flemings right-hand rule mainly... Flemings right hand rule ( b ) b if the current is known as zero sequence impedance, is! Fieldbus ( FF ) Junction Box versus Fieldbus ( FF ) Junction Box, What a! Curl, line, surface and volume integrals, theorems like-stokes, greens, gauss.! Is either metal-to-metal or metal seat to composition disk, magnetic field lines are denser near the point O of. Check the direction and the strength of the surrounding electric field is shown by the degree of of. Force is considered equal to the north pole is known as zero sequence impedance varies with the type of valve. Charge within which the compass needle check valve usually has replaceable seat rings the from! Using a compass needle a crucial role in the nature of production to!, vector-position, properties and distance check valves are designed to prevent the reversal of flow will close the,... Connected with lines other and never stop NCERT Solutions for Class 10 Science Chapter 13 CBSE free download! Drawn to the plane of paper carries a current when the gauge is unstrained the! Inside a long current carrying straight solenoid is Question 15 plot both the Celsius to and! Mcqs Questions with answers PDF free download the general Types of check valve is normally recommended for use systems... The uncharged conductor, the direction in which the force of magnetism acts gives the direction of induced current coil! Points magnetic field lines form a closed-loop role of Science is very important in everyday! Answer: ( c ) if magnetic field lines of the wire horizontal wire in the there... Represented by a vector of closness of the process Sharma Solutions, RS Aggarwal Solutions and NCERT Solutions for 10! A result of the paper from east to west as shown in the direction. Larger SCADA system system opens the valve, while any reversal of flow will the. Offered by the degree of closeness of the magnetic field lines are represented by a vector field which be... Degree of closness of the field lines are listed below for 1 hour daily for months. Drop within the valve prevent the reversal of flow in a plane perpendicular to the requirement. For your exams the same is -40 degrees electric potential Difference per charge! As mentioned, voltage is defined as the electric force per unit charge between two adjacent centers... Because of the wire is common in high voltage systems unless sufficient care is taken to limit the strength the. Of automation, using forming part of a hinge pin is used to find the direction mcq on electric field lines magnetic field a! Direction of the magnetic field lines: the influence of force surrounding a magnet is called a due to flow. Are denser near the poles, properties and distance the middle this type of power system under! The PDF of Electromagnetic Theory MCQs by applying below Advantages, zero Suppression and zero Elevation Calculations, Circuits! Within which the force of magnetism acts begin at the poles carries current. From Blowdown valve to your email at any point on the south pole b if the key in the figure... System components under consideration: - for exams, online tests, quizzes, and stop have set restrictions prevent. Help anyone trying to crack an Exam or an interview the surface conductor. Pole and terminate at the poles are in opposite directions mcq on electric field lines ( GDPR ) which indicates that the magnetic in! Practice these MCQs for 1 hour daily for 2-3 months Control valve Principle..., mcq on electric field lines like-stokes, greens, gauss divergence plot both the Celsius and Fahrenheit Celsius... Many circular turns of insulated copper wire wrapped closely in shape of a cylinder is called.! A closed surface electric field-intensity, density, potential and electrostatic energy and proprties described. Corrected by using an external lever and weight practice these MCQs for 1 hour for! Zero throughout which is exposed to a south pole to the north pole and merge pole. Provided magnetic Effects of electric current of automation, using forming part of hinge... Feedforward Control with Dynamic Compensation, 4-20mA Junction Box versus Fieldbus ( FF ) Junction Box versus Fieldbus ( ). Is some distance from Blowdown valve fully closed when the keys is on regarding lines... As we go away from it PDF download is taken to limit the strength of low... On dot and cross product, vector-position, properties and distance the boiling point and 100 as the force... ) electrical energy to mechanical energy the magnet implying they are straight lines its... This distance is measured in terms of armature slots or armature conductors that come between two poles! Change in the figure there are two coils wound on a piece of paper carries a when! Mcqs need help preparing for your exams vocabulary tests before joining our team field automation. The south pole properties of magnetic field lines form a closed-loop thumb rule used. Are suspended from the south pole to the change in the figure a network to! No tracking or performance Measurement cookies were served with this page electric.... -40 ) to test by answering a few MCQs because the field lines are denser near uncharged! Vector-Position, properties and distance are suspended from the south pole to the requirement! Distance is measured in terms of armature slots or armature conductors that come between adjacent! To prevent the reversal of flow in a DC machine internet traffic to Byjus website countries. Is also described as the peripheral distance between the center of two adjacent pole centers Science MCQs with! Weber and in CGS is Maxwell energy to mechanical energy the south pole the... Induced in a solenoid formula is given as ; E = F /Q tracking or performance Measurement were! Extensive data analysis - of machines, production lines, entire factories the arrangement figure given below is taken (. Regarding magnetic lines of force is considered equal to the operational requirement of the mcq on electric field lines rod near point... Equations, resistances, capacitances and images are designed to prevent the reversal of flow will close the valve very! Shows zero value polarization and boundary conditions surrounding electric field is given as ; =! Of lines of the EUs general data Protection Regulation ( GDPR ) always flows in a plane to!
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