All Rights Reserved. Web Both of these generators produce electrical power based on the principle of Faradays law of electromagnetic induction.. This type of check valve usually has replaceable seat rings. Click Start Quiz to begin! (d) at a point located in the plane of the paper, on the south side of the wire. Question 6. Magnetic field lines form a closed-loop. The difference between the direct current and alternating current is that the direct current flows in direction, whereas the alternating current its direction periodically. atmatm24365atm 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. Therefore, magnetic field lines are represented by a vector. Electric field can be considered as an electric property associated with each point in the space where a charge is present in any form. (a) A Magnetic flux refers to the number of magnetic field lines passing through a closed surface. This way of systematic learning will prepare you easily for Electromagnetic Theory exams, contests, online tests, quizzes, MCQ-tests, viva-voce, interviews, and certifications. (a) earthing The general types of check valves are swing, tilting-disk, piston, butterfly, and stop. Magnetic flux is the total number of magnetic field lines passing through a particular area. Different Control Valve Flow Characteristics. Fuse, Down: You should practice these MCQs for 1 hour daily for 2-3 months. Choose the incorrect statements from the following regarding magnetic lines of field. The section contains questions and answers on transmission line primary,secondary parameters with equations, power and return loss,standing waves, reflection and transmission coefficients. Butterfly Valves Construction, Types, Stem & Bonnet Assembly, What is a Feedback Control System? Each paper writer passes a series of grammar and vocabulary tests before joining our team. Feedforward Control with Dynamic Compensation, 4-20mA Junction Box versus Fieldbus (FF) Junction Box, What is a Feedback Control System? Question 9. Types & Advantages, Zero Suppression and Zero Elevation Calculations. Magnetic field lines can be drawn using a compass needle. Closure is accomplished by the weight of the check mechanism, by back pressure, by a spring, or by a combination of these means. As mentioned, voltage is defined as the electric potential difference per unit charge between two points in an electric field. Magnetic field lines form a closed-loop. Select the incorrect statement A PLC can be programmed according to the operational requirement of the process. The compass needle should be placed on a piece of paper near the magnet. 4. (d) square shape. Move the compass needle to different positions and mark the directions. 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(c) Right hand thumb rule (a) concentric circles Connect, collaborate and discover scientific publications, jobs and conferences. 5. Alternating current 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. Question 5. Among the following statements, the incorrect statement is Here the magnetic field lines never cross each other and never stop. 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. Electric flux is defined as the total number of lines of force emanated from a charged object. 3. It is denoted by M. Electric Flux. Magnetic field lines never intersect with each other. 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. At the centre of current carrying loop the magnetic field appears to be a , Across Exercise Questions. It is a visual tool used to visualize the direction and the strength of the magnetic field. The formula of electric field is given as; E = F /Q. 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. The direction of this current flow can be When the gauge is unstrained, the bridge is balanced, and voltmeter shows zero value. (d) B if the current is small and A if the current is large. (a) Flemings right hand rule (c) same at all points 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. Both the Celsius to Fahrenheit and Fahrenheit to Celsius equations are linear (no quadratic terms) implying they are straight lines. Question 1. 1000+ Electromagnetic Theory MCQ PDF arranged chapterwise! Colour of insulation of live wire, Answer: The magnetic field is the region around a magnetic material or moving electric charge within which the force of magnetism acts. Digital Image Processing MCQ (Multiple Choice Questions) with dip tutorial, introduction, analog image vs digital image, signal, system, keywords, origin of camera, photography, etc. (d) the N- and S-poles exchange position when the direction of current through the solenoid is reversed. Right hand thumb rule Magnetic field lines never intersect with each other. electric field-intensity, density, potential and electrostatic energy and proprties. Why Thermocouple Reference Junction Compensation Required ? 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. In the manufacturing industry, there will be a need for reprogramming due to the change in the nature of production. Magnetic field in a long solenoid is homogeneous and its strength doesnt depend The total number of lines of force is considered equal to the charge of the object in coulombs. 4. Electricity and electric and electronic equipment plays a vital role in our everyday life. 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. (d) 220 V. 1. Magnetic field lines are the lines in a magnetic field whose tangent indicates the field direction at any given position and whose density gives the field magnitude. Its SI unit is voltmeter. Answer: (c) Field lines can cross each other. -. 1. The pressure of the fluid passing through the system opens the valve, while any reversal of flow will close the valve. Magnetic field and field lines: The influence of force surrounding a magnet is called magnetic field. 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.. The direction of magnetic field at a point will be North to South (b) red -. We have Provided Magnetic Effects of Electric Current Class 10 Science MCQs Questions with Answers to help students understand the concept very well. 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. The sequence impedance varies with the type of power system components under consideration:-. The figure here shows electric field lines. (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 Wish you the best in your endeavor to learn and master Electromagnetic Theory! PLCs play a crucial role in the field of automation, using forming part of a larger SCADA system. (a) E 1 > E 2 (b) E 1 < E 2 (c) E 2 = rE 1 (d) E 2 = E 1 /r. 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 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. You can unsubscribe at any time. The direction of magnetic field produced by a current carrying conductor can be found out by using Question 8. Check valves are designed to prevent the reversal of flow in a piping system. Red. (b) directly below the wire Question 4. The section contains multiple choice questions and answers on coulomb and gauss law with applications, electric field-intensity, density, potential and electrostatic energy and proprties. Reasons, Solutions. 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? 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. Be the first to get exclusive content straight to your email. This distance is measured in terms of armature slots or armature conductors that come between two adjacent pole centers. 2022 Reproduction without explicit permission is prohibited. The magnetic field is a field produced by the magnet or electric charges in motion. The section contains MCQs on gradient, curl, line, surface and volume integrals, theorems like-stokes, greens, gauss divergence. Response Time Test of RTD and Thermocouple, RTD Calculator : Calculate Temperature from Resistance, Thermistors and Resistance Temperature Detectors (RTDs), Thermocouple Temperature Measurement Errors. We have over 5000 electrical and electronics engineering multiple choice questions (MCQs) and answers with hints for each question. 5. 2. All for free. As a result of the EUs General Data Protection Regulation (GDPR). Choose the incorrect statement Magnetic field lines appear to emerge or begin at the north pole and terminate at the south pole. The section contains MCQs on types and properties of waveguides with cut-off frequency and wavelength, traverse electric, magnetic and electric magnetic waves, transients. (a) blue Start practicing now for exams, online tests, quizzes, and interviews! 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. In the magnetic field, the force exerted by a magnet can be detected using a compass or any other magnet. 1. The field lines are denser near the poles, which indicates that the magnetic field is stronger at the poles. If we solve for this solution or plot both the lines, we see that the intersect at (-40,-40). (b) magnetic field lines are closed curves Closure is accomplished by the weight of the check mechanism, by back pressure, by a spring, or by a combination of these means. (b) minimum in the middle (a) the deflection in the galvanometer remains zero throughout. We promise not to spam you. 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. Put your understanding of this concept to test by answering a few MCQs. F = (F * 9/5) + 32 F (F * 9/5) = 32-4/5 * F = 32 F = -32 * 5/4 F = -40. 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. Anders Celsius actually defined his temperature scale exactly the opposite way that everybody thinks he did. 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. (b) concentric ellipse A circular loop placed in a plane perpendicular to the plane of paper carries a current when the keys is ON. An electric motor is rotating device that converts energy to energy. Electromagnetic induction (d) The relative strength of the magnetic field is shown by degree of closness of the field lines. (b) elliptical in shape MCQs in all electrical engineering subjects including analog and digital communications, control systems, power electronics, electric circuits, electric machines (a) more at the ends than at the centre Answer: (a) E 1 > E 2 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. It is the best reference material to build a foundation for Science subjects for both board and other entrance Turbulence and pressure drop within the valve are very low. Now diagnosing the problem becomes much easier with the help of the invention of X-Ray, Ultrasonography, ECG, MRI, Penicillin, etc. Magnetic field around a straight conductor The direction of induced current is given by Concentric circles Flemings Left-Hand rule is mainly applicable to electric motors and Flemings Right-Hand rule is mainly applicable to electric generators. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Solenoid Valves Energized or De-energized State ? According to new CBSE Exam Pattern, MCQ Questions for Class 10 Science pdf Carries 20 Marks. A swing check valve is normally recommended for use in systems employing gate valves because of the low pressure drop across the valve. The section contains questions and answers on magnetic force, torque, dipole, materials, energy, circuits and boundary conditions. Check the below NCERT MCQ Questions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current with Answers Pdf free download. 6. (c) green (c) use of stabilizers 3. 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. AC generator converts energy into energy. The closeness or density of the field lines is directly proportional to the strength of the field. Consider two points A and B. Types & Advantages, Zero Suppression and Zero Elevation Calculations, Electric Circuits Objective Questions Set 10. Some important properties of magnetic field lines are listed below . Question 15. 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The magnitude of this induced EMF depends upon the rate of change of flux Q is the charge. At any point on the field, field lines have both direction and magnitude. 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. The N-pole of the resultant magnet is on the faces close to (a) directly above the wire Magnetic field lines indicate the magnetic fields direction. Therefore, magnetic field lines are represented by a vector. Straight body swing check valves contain a disk that is hinged at the top. 1. 6. By convention the magnetic field lines emerge from pole and merge at pole. Answer: (d) In India, the AC changes direction after every \(\frac{1}{50}\) second. Magnetic fields are represented using magnetic field lines. (d) Left hand thumb rule. (b) B These interconnections are made up of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that (c) straight lines parallel to each other (Due to earths magnetic field) Optimized production requires extensive data analysis - of machines, production lines, entire factories. 2. (d) relative strength of magnetic field is shown by the degree of closeness of the field lines. Answer: (c) if magnetic field lines are parallel and equidistant, they represent zero field strength. Therefore, magnetic field lines are vectors. 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. 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. The section contains MCQs on laplace and poisson equations, resistances, capacitances and images. Swing check valves are usually installed in conjunction with gate valves because they provide relatively free flow. Magnetic field can be depicted in several ways. (c) A if the current is small, and B if the current is large Magnetic Effects of Electric Current Class 10 MCQs Questions with Answers. Magnetic field lines do not cross one another. 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. The role of science is very important in our everyday life. Inside the magnet, the direction of the magnetic field lines is from the south pole to the north pole. Magnetic field lines appear to emerge or start from the north pole and merge or terminate at the south pole. The set of vectors are connected with lines. () Magnetic field lines are closed curves No tracking or performance measurement cookies were served with this page. The current which reverses its direction periodically (g) current always flows in one direction. 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. Seating is either metal-to-metal or metal seat to composition disk. F is a force. (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 In the arrangement shown in the figure there are two coils wound on a non-conducting cylindrical rod. (d) concentric circles near the point O but of elliptical shapes as we go away from it. 4. In India the potential difference between live wire and neutral wire is (b) No two field lines can cross each other (c) 280 V The impedance offered by the system to the flow of zero sequence current is known as zero sequence impedance. (b) The right-hand thumb rule is used to find the direction of magnetic fields due to current carrying conductors. The section contains questions and answers on cartesian, cylindrical and spherical Coordinate System. Magnetic Field Unit and Measurement It will immensely help anyone trying to crack an exam or an interview. PLCs play a crucial role in the field of automation, using forming part of a larger SCADA system. In previous fault calculation, Z 1, Z 2 and Z 0 are positive, negative and zero sequence impedance respectively. 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. 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. 6. Question 13. Joining the points shows the magnetic field lines. Answer. Field lines have both direction and magnitude at any point on the field. Electrical Engineering MCQs Need help preparing for your exams? The most important safety method used for protecting home appliances from short circuiting or overloading is by Why Restriction Orifice is some distance from Blowdown valve ? Its SI unit is Weber and in CGS is Maxwell. (a) 240 V 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. ON OFF Valve Preventive Maintenance and Testing Procedure, Control Valve Accessories Principle, Purpose, Advantages. The tangent drawn to the magnetic field lines gives the direction of the magnetic field. 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. If the key in the arrangement figure given below is taken out (the circuit is made open) and magnetic . (c) if magnetic field lines are parallel and equidistant, they represent zero field strength 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. They denote the direction of the magnetic field. The section contains multiple choice questions and answers on dot and cross product, vector-position, properties and distance. Faradays law states that a current will be induced in a conductor which is exposed to a changing magnetic field. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. The MCQ Test offered by Embibe is curated based on revised CBSE Class Books, paper patterns and syllabus for the year 2021. 3. Another way is the use of field lines. 10 Lines on Essay on Wonders of Science in English. The strength of magnetic field inside a long current carrying straight solenoid is They have different slopes and are non-parallel with a single solution. 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. Down RD Sharma Solutions , RS Aggarwal Solutions and NCERT Solutions. Reason : Both the Celsius to Fahrenheit and Fahrenheit to Celsius equations are linear (no quadratic terms) implying they are straight lines. These valves are activated by the flowing material in the pipeline. (b) 250 V The section contains multiple choice questions and answers on laws like-biot savart, faraday, lenz, ampere and maxwell laws. Electric motor is a device which converts (a) concentric circles Question 14. (d) use of electric meter. ResearchGate is a network dedicated to science and research. Question 10. Our 1000+ Electromagnetic Theory MCQs (Multiple Choice Questions and Answers) focuses on all chapters of Electromagnetic Theory covering 100+ topics. 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. The magnetic field is stronger at the poles because the field lines are denser near the poles. (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. The section contains multiple choice questions and answers on advanced, tricky, tough electromagnetic theory. (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 Solenoid Valve with Manual Reset Working Principle, What is an Actuator? (b) use of fuse Waveguides Q.20. Inside the magnet, the direction of the magnetic field lines is from the south pole to the north pole. 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. 2011-2022 Sanfoundry. Question 7. We promise not to spam you. 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. Electric motor Electric flux refers to the number of electric field lines passing through a closed surface. This condition can be partially corrected by using an external lever and weight. (a) mechanical energy to electrical energy The corona effect will occur in high voltage systems unless sufficient care is taken to limit the strength of the surrounding electric field. 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. In static and balanced power system The site owner may have set restrictions that prevent you from accessing the site. A coil of many circular turns of insulated copper wire wrapped closely in shape of a cylinder is called a . magnetic field in intensity as well as density and also magnostatic energy and its properties. So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees. The photodiode is a p-n junction semiconductor device that transmutes the light into an electric current. The disk seals against the seat, which is integral with the body. An electric field is also described as the electric force per unit charge. Principle of electric generator So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees. The section contains questions and answers on conductors, dielectrics and its strengths, polarization and boundary conditions. (c) at a point located in the plane of the paper, on the north side of the wire (c) there are momentary galvanometer deflections that die out shortly; the deflections are in the same direction. A swing check valve allows full, unobstructed flow and automatically closes as pressure decreases. Question 11. Different Types of Actuators, Difference Between Linear Actuator and Rotary Actuator, How to Protect Pumps from Cavitation? (d) In India, the AC changes direction after every \(\frac{1}{50}\) second. As there is a change in resistance of strain gauge, the bridge gets unbalanced and producing an indication at the voltmeter. Across: 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. (c) the pattern of the magnetic field associated with the solenoid is different from the pattern of the magnetic field around a bar magnet Corona discharge can cause an audible hissing or cracking noise as it ionizes the air around the conductors. (d) found to increase from one end to the other. You can unsubscribe at any time. Magnetic field lines around a straight conductor forms a pattern of You can also download the PDF of Electromagnetic Theory MCQs by applying below. The insulation colour of earth wire is Access NCERT Solutions for Class 7 Science Chapter 14 Electric Current and Its Effects. Then the key is inserted and later removed. These valves are fully closed when the flow reaches zero and prevent back flow. The device which convert electrical energy into mechanical energy For a current in a long straight solenoid, N- and S-poles are created at the two ends. (d) white. To understand armature windings in a DC generator, we first need to understand pole pitch, coils, and coil span.. What is Pole Pitch? Question 2. In the manufacturing industry, there will be a need for reprogramming due to the change in the nature of production. A constant current flows in a horizontal wire in the plane of the paper from east to west as shown in the figure. Casino Royale The Lord of the Rings: The Fellowship of the Ring The Lord of the Rings: The Return of the King The Lord of the Rings: The Two Towers Quantum of Solace Skyfall Die Another Day Star Wars: Episode IV - A New Hope Harry Potter and the Sorcerer's Stone Harry Potter and the Prisoner of Azkaban Dr. No From Russia with Love Thunderball Jurassic Park 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 (b) electrical energy to mechanical energy 7. Magnetic field in a solenoid formula is given as B = 0 nl. 7. Pole pitch is defined as the peripheral distance between the center of two adjacent poles in a DC machine. Check the direction in which the compass needle points and mark the direction. NCERT Solutions for Class 10 Science Chapter 13 CBSE Free PDF Download. We are not permitting internet traffic to Byjus website from countries within European Union at this time. The pressure of the fluid passing through the system opens the valve, while any reversal of flow will close the valve. Coulomb Law; Short and Open Circuit Lines; 12. 2. Initially the key is not inserted. Question 12. Assertion : On bringing a positively charged rod near the uncharged conductor, the conductor gets attracted towards the rod. Test Your Knowledge On Properties Of Magnetic Field Lines! Question 3. Then (b) Flemings left hand rule The safety device which is used to protect the circuit from short circuiting and overloading The fact that they intersected at a whole number is purely coincidental. 5. (d) mechanical energy to light energy. Question 1. (b) there is a momentary deflection in the galvanometer but it dies out shortly and there is no effect when the keys is removed. (c) straight line He originally defined 0 as the boiling point and 100 as the freezing point. About Our Coalition. This is common in high voltage electric power transmission lines. Be the first to get exclusive content straight to your email. The magnetic field lines point from B to A. Let us describe this using equations. Where, E is the electric field. Answer: (d) there are momentary galvanometer deflections that die out shortly; the deflection are in opposite directions. field lines are drawn over the horizontal plane ABCD, the lines are 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. (c) chemical energy to mechanical energy Reason : The electric field lines of the charged rod are perpendicular to the surface of conductor. Answer: (c) straight lines parallel to each other (Due to earths magnetic field). (c) Field lines can cross each other In either style, the disk and hinge are suspended from the body by means of a hinge pin. Mathematically, it can be represented as a vector field which can be plotted as different sets on a grid. (d) there are momentary galvanometer deflections that die out shortly; the deflection are in opposite directions. (a) Flemings right-hand rule is a simple rule to know the direction of induced current. Choose the incorrect statements from the Field lines have both direction and magnitude at any point on the field. 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. 2022 Reproduction without explicit permission is prohibited. Answer: (b) electrical energy to mechanical energy. 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