This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > Magnetic Effects Of Electric Current > Class 10 Science Chapter 13 Magnetic Effects Of Electric Current – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following property of a Proton can change while it moves freely in a magnetic field A) Mass. B) Speed. C) Both 1 and 2. D) Velocity. Show Answer Correct Answer: D) Velocity. 2. Strength of solonoid is more at the centre A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. The nature of magnetic field line passing through the centre of current carrying circular loop is A) Ellipse. B) Straight line. C) Parabolic. D) Circular. Show Answer Correct Answer: D) Circular. 4. When current flows clockwise in a loop the polarity of its face is A) South. B) East. C) West. D) North. Show Answer Correct Answer: A) South. 5. The magnetic field lines are ..... A) Curves. B) Closed loops. C) Lines. D) None of the above. Show Answer Correct Answer: B) Closed loops. 6. What does the thumb indicate in flemings left hand rule? A) Magnetic field direction. B) Motion. C) Current. D) Force. Show Answer Correct Answer: D) Force. 7. What is the principle of working of loudspeaker? A) Ohms law. B) Electromagnetic induction. C) Motor principle. D) Joules law. Show Answer Correct Answer: C) Motor principle. 8. The best material to make permanent magnets is A) Aluminium. B) Alnico. C) Copper. D) Soft iron. Show Answer Correct Answer: B) Alnico. 9. The device which is used to detect current is called a: A) Ammeter. B) Galvanometer. C) Motor. D) Generator. Show Answer Correct Answer: B) Galvanometer. 10. A constant current flows in a horizontal wire in the plane of the paper from east to west as shown in Figure 13.5. The direction of magnetic field at a point will be North to South A) Directly above the wire. B) Directly below the wire. C) At a point located in the plane of the paper, on the north side of the wire. D) At a point located in the plane of the paper, on the south side of the wire. Show Answer Correct Answer: A) Directly above the wire. 11. An electric generator actually acts as A) A source of neat energy. B) A source of electric charge. C) An electromagnet. D) A converter of energy. Show Answer Correct Answer: D) A converter of energy. 12. Which of the following is not a property of magnentic lines of force A) The lines along which the iron filings align themselves represent magnetic field lines. B) Magnetic field is quantity that has both direction and magnitude. C) The strength of the magnetic field is weaker at the pole. D) The magnetic field lines are closed curves. Show Answer Correct Answer: C) The strength of the magnetic field is weaker at the pole. 13. The unit of magnetic field strength is- A) Oersted. B) Pascal. C) Faraday. D) Newton. Show Answer Correct Answer: A) Oersted. 14. The magnetic field lines determine A) The shape of the magnetic field. B) Only the direction of the magnetic field. C) Only the relative strength of the magnetic field. D) Both 2 and 3. Show Answer Correct Answer: D) Both 2 and 3. 15. Voltage is simply defined as ..... A) What 'pushes' electrons. B) What 'stops' electrons. C) Moving electrons. D) None of the above. Show Answer Correct Answer: A) What 'pushes' electrons. 16. An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain. A) The oven will not operate properly and may cause the circuit breaker to trip. B) The current rating of the circuit will increase to accommodate the oven. C) The circuit will experience a power surge and damage the oven. D) The oven will operate more efficiently due to the high power rating. Show Answer Correct Answer: A) The oven will not operate properly and may cause the circuit breaker to trip. 17. The use of fuse is A) To supply high current in case of overloading. B) To stop the supply of current in case of overloading or short circuit. C) To control the voltage. D) To supply high current in case of short circuit. Show Answer Correct Answer: B) To stop the supply of current in case of overloading or short circuit. 18. The magnetic field lines due to a straight wire carrying a current are A) Circular. B) Parabolic. C) Straight. D) Elliptical. Show Answer Correct Answer: A) Circular. 19. The laws of electrolysis and electromagnetic induction was discovered by- A) Michael Faraday. B) Stephen Hawking. C) Albert Einstein. D) Hans Christian Oersted. Show Answer Correct Answer: A) Michael Faraday. 20. The magnetic effect of current was discoverd by A) Fleming. B) Maxwell. C) Oasted. D) None of the above. Show Answer Correct Answer: C) Oasted. 21. In right hand thumb rule, thumb indicates what A) Force. B) Direction flow of electrons. C) Directrion of current. D) Magnetic field. Show Answer Correct Answer: C) Directrion of current. 22. What happens to the magnetic feild when no current is passed A) The iron fillings assemble in concentric cirles. B) Compass needle gets deflected. C) Both a and b. D) There would be no magnetic field. Show Answer Correct Answer: D) There would be no magnetic field. 23. When current flows from South to North, magnetic needle will be deflected towards A) East. B) West. C) All the above. D) None of the above. Show Answer Correct Answer: B) West. 24. A length of the wire carries a steady current. It is bent first to form a circular plane coil of one turn.The same length is now bent more sharply to give a double loop of the smaller radius.The magnetic field at the center caused by the same current is A) Four times its first value. B) A half of its first value. C) Un altered. D) A quarter of its first value. Show Answer Correct Answer: A) Four times its first value. 25. Red insulation covered wire represents A) Earth wire. B) Neutral wire. C) Live wire. D) Copper wire. Show Answer Correct Answer: C) Live wire. 26. What is a short circuit? A) A short circuit is when an electrical current flows in reverse. B) A short circuit is when an electrical current flows in an unintended path desired by the user. C) A short circuit is when the live wire and neutral wire come in direct contact increasing the flow of current. D) A short circuit is when a circuit is too long to function properly and provides high voltage to an appliance. Show Answer Correct Answer: C) A short circuit is when the live wire and neutral wire come in direct contact increasing the flow of current. 27. Is magnetic field a scalar quantity or vector quantity? A) Scalar. B) Vector. C) Both. D) None. Show Answer Correct Answer: B) Vector. 28. What is the direction of force on a current carrying conductor if the direction of current is reversed? A) Remains the same. B) Becomes zero. C) Reversed. D) Depends on the strength of the current. Show Answer Correct Answer: C) Reversed. 29. If the key in the arrangement (Figure 13.1) is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are A) Concentric circles. B) Elliptical in shape. C) Straight lines parallel to each other. D) Concentric circles near the point O but of elliptical shapes as we go away from it. Show Answer Correct Answer: A) Concentric circles. 30. Fuse wire has high melting point. True or False: A) May be false. B) True. C) False. D) May be correct. Show Answer Correct Answer: C) False. 31. Which of the following is not attracted by a magnet? A) Nickel. B) Cobalt. C) Brass. D) Steel. Show Answer Correct Answer: C) Brass. 32. The relative strength of a magnetic field is shown by- A) Thickness of the magnet. B) Weight of the magnet. C) Closeness of the field lines. D) None of the above. Show Answer Correct Answer: C) Closeness of the field lines. 33. The electric device which works on the phenomena of force on a current carrying conductor in a magnetic field is A) Accelerator. B) Transformer. C) Generator. D) Motor. Show Answer Correct Answer: D) Motor. 34. No two field-lines are found to cross each other. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 35. What precaution should be taken to avoid the overloading of domestic electric circuits? A) Distribute load evenly, avoid using multiple high-power appliances simultaneously, unplug devices when not in use, and check for loose connections or faulty wiring. B) Connect multiple high-power appliances to the same outlet. C) Ignore warning signs of overheating. D) Use extension cords for all appliances. Show Answer Correct Answer: A) Distribute load evenly, avoid using multiple high-power appliances simultaneously, unplug devices when not in use, and check for loose connections or faulty wiring. 36. What is the effect of increasing the current in a wire on the deflection of a compass needle placed nearby? A) The deflection remains the same. B) The deflection decreases. C) The deflection increases. D) The compass needle stops working. Show Answer Correct Answer: C) The deflection increases. 37. An electrical oven of 2 kw power rating is operated in adomestic cirruit that has a current rating of 5 A.WHAT WILL HAPPEN A) It will work. B) It will blast. C) The equipment and socket will be damaged. D) It will not wotk. Show Answer Correct Answer: D) It will not wotk. 38. List two methods of producing magnetic fields. A) Electricity and heat. B) Friction and pressure. C) Light and sound. D) Electric current and magnets. Show Answer Correct Answer: D) Electric current and magnets. 39. Fleming's right hand rule is used in A) Motor. B) Generator. C) None. D) None of the above. Show Answer Correct Answer: B) Generator. 40. Magnetic field produced by a current carrying wire at a given point depends directly on ..... A) Electric current. B) Magnetism. C) Strength of magnetic field. D) Electricity. Show Answer Correct Answer: A) Electric current. 41. Conductor made into the shape of a spring is called A) Solenoid. B) Temporary magnet. C) Iron core. D) Spring conductor. Show Answer Correct Answer: A) Solenoid. 42. The relative strength of magnetic field is show by A) Length of field lines. B) Size of magnetic field. C) Degree of closeness of field lines. D) Amount of current flowing. Show Answer Correct Answer: C) Degree of closeness of field lines. 43. A magnetic field exerts a force on a charged particle A) Never. B) If the particle is moving along the field lines. C) Always. D) If particle is moving inclined to field lines. Show Answer Correct Answer: D) If particle is moving inclined to field lines. 44. A magnet attracts: A) Plastic. B) Any metal. C) Aluminium. D) Iron and steel. Show Answer Correct Answer: D) Iron and steel. 45. Hans Christan Oersted, one of leading scientist of 19th century played a crucial role in understanding ..... A) Electricmagnetism. B) Magnetism. C) Electric current. D) Electromagnetism. Show Answer Correct Answer: D) Electromagnetism. 46. A deflection of a compass needle placed near a current carrying conductor will be observed if magnitude of current passing through the conductor is changed. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 47. Which of the following are the possible ways to increase the induced e.m.f. produced by a simple A.C. generator?(i) Increasing the rotating speed of the coils(ii) Placing a soft iron core in the coil(iii) Replacing the permanent magnets with another pair of magnets having stronger magnetic field strength A) Only (i) and (ii). B) Only (ii) and (iii). C) Only (i) and (iii). D) (i), (ii) and (iii). Show Answer Correct Answer: D) (i), (ii) and (iii). 48. Imagine that you are holding a current-carrying straightconductor in your right hand such that the thumb points towards the direction of magnetic field. Then your fingers will wrap around the conductor in the direction of the current.This is known as the right-hand thumb rule. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 49. Choose the incorrect statement from the following regarding magnetic lines of 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. B) Magnetic field lines are closed curves. C) If magnetic field lines are parallel and equidistant, they represent zero field strength. D) Relative strength of magnetic field is shown by the degree of closeness of the field lines. Show Answer Correct Answer: C) If magnetic field lines are parallel and equidistant, they represent zero field strength. 50. What is magnetic field? A) "The region surrounding a magnet, in which the force of the magnet can be detected,. B) "The region surrounding a magnet, in which the power of the magnet can be detected,. C) "The region surrounding a magnet, in which the force of the electricity can be detected,. D) "The region surrounding a magnet, in which the force of the electrons can be detected,. Show Answer Correct Answer: A) "The region surrounding a magnet, in which the force of the magnet can be detected,. 51. Like poles ..... , while unlike poles of magnets ..... each other. A) REPEL, REPEL. B) Attract, repel. C) Repel, attract. D) Like, attract. Show Answer Correct Answer: C) Repel, attract. 52. A current carrying wire is placed in a magnetic field. If the current in the wire is increased, the displacement of the wire will: A) Increase. B) Decrease. C) Remain the same. D) None of the above. Show Answer Correct Answer: A) Increase. 53. What is the instrument used to detect the presence of current in a circuit? A) Voltmeter. B) Manometer. C) Galvanometer. D) Ammeter. Show Answer Correct Answer: D) Ammeter. 54. What is the strength of the magnetic field at the center of a circular current carrying loop? A) Zero. B) Stronger than at the periphery. C) Same as at the periphery. D) Weaker than at the periphery. Show Answer Correct Answer: C) Same as at the periphery. 55. An electron moving towards the east enters a magnetic field directed towards the north. The force on the electron will be directed A) Vertically upward. B) Towards the west. C) Towards the south. D) Vertically downward. Show Answer Correct Answer: D) Vertically downward. 56. Fuse is connected in A) Earth wire. B) Neutral wire. C) Live wire. D) Any wire. Show Answer Correct Answer: C) Live wire. 57. Who discovered that a compass needle gets deflected when a current-carrying conductor is placed near it? A) Alexander Fleming. B) Hans Christian Oersted. C) Joule. D) Rutherford. Show Answer Correct Answer: B) Hans Christian Oersted. 58. Which of these acts like a bar magnet (a) A) Hose shoe magnet. B) Circular loop. C) Solenoid. D) Both b and c. Show Answer Correct Answer: C) Solenoid. 59. Who has stated the Right Hand Thumb Rule? A) Einstein. B) Orested. C) Maxwell. D) Fleming. Show Answer Correct Answer: C) Maxwell. 60. Straight conducter works based on the A) Fleming's left hand rule. B) Clock rule. C) Fleming's right hand rule. D) Right hand thumb rule. Show Answer Correct Answer: D) Right hand thumb rule. ← PreviousNext →Related QuizzesScience QuizzesClass 10 QuizzesClass 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 1Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 3Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 4Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 5 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books