This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 13 Magnetic Effects Of Electric Current – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. NO two field lines are found to cross each other.if they did ..... A) It would mean that outside the point of intersection the compass needle point towards to directions. B) The like poles will attract each other. C) The unlike poles would repel. D) None of these. Show Answer Correct Answer: D) None of these. 2. A soft iron bar is inserted inside a current-carrying solenoid. The magnetic field inside the solenoid: A) Will decrease. B) Will increase. C) Will become zero. D) Will remain the same. Show Answer Correct Answer: B) Will increase. 3. What does the right-hand thumb rule help to determine? A) The amount of current flowing. B) The direction of the magnetic field. C) The resistance of the wire. D) The strength of the magnetic field. Show Answer Correct Answer: B) The direction of the magnetic field. 4. Which of the following is true about magnetic field lines? A) They intersect each other. B) They are parallel to each other. C) They form closed curves. D) They have no specific shape. Show Answer Correct Answer: C) They form closed curves. 5. According to Fleming's left hand rule, what does the forefinger point towards? A) Force. B) Magnetic field. C) Current. D) Motion. Show Answer Correct Answer: B) Magnetic field. 6. Henry oxford accidentally discovered that a compass needle got deflected when an electric current passed through a metallic wire placed nearby. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 7. The device used for producing electric current is A) Generator. B) Galvanometer. C) Amounted. D) Motor. Show Answer Correct Answer: A) Generator. 8. Right hand thumb rule help us to find the direction of ..... in a current carrying conductor A) Electric field. B) Magnetic field. C) None of these. D) None of the above. Show Answer Correct Answer: B) Magnetic field. 9. Two parallel conductors A and B of equal lengths carry currents I and 10I respectively in the same direction. Then A) A and B repel each other with same force. B) A and B attract each other with same force. C) A will attract B, but B will repel A. D) A and B attract each other with different face. Show Answer Correct Answer: B) A and B attract each other with same force. 10. We can induce current in the coil by- A) Moving it in a magnetic field. B) Changing magnetic field around it. C) Option A and B both. D) None of the above. Show Answer Correct Answer: C) Option A and B both. 11. Magnetic field is a scalar quantity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. The main advantage of A.C power transmission over D.C power transmission over' long distance is A) AC transmit without much loss of energy. B) Less insulation problem. C) Less problem of instability. D) Easy transformation. Show Answer Correct Answer: A) AC transmit without much loss of energy. 13. The function of commutator or slip ring is to A) Increase the current flowing through the coil. B) Change the direction of current through coil. C) Decrease the current flowing through the coil. D) Change the direction of magnetic field. Show Answer Correct Answer: B) Change the direction of current through coil. 14. What is the principle behind an electric generator? A) Conversion of mechanical energy to electrical energy. B) Conversion of electrical energy to mechanical energy. C) Conversion of electrical energy to heat energy. D) Conversion of heat energy to electrical energy. Show Answer Correct Answer: A) Conversion of mechanical energy to electrical energy. 15. The magnetic field produced by a given current in the conductor ..... as the distance from it increases. A) Decreases. B) Increases. C) Remains same. D) None. Show Answer Correct Answer: A) Decreases. 16. Weak ion currents that travel along nerve cell in our body produces ..... A) Magnetic Field. B) Magnetism. C) Electricity. D) Electrons. Show Answer Correct Answer: A) Magnetic Field. 17. An Electric charge in a uniform motion produces A) An Electric Field only. B) An Magnetic field only. C) Both Electric Field & Magnetic field. D) Neither of them. Show Answer Correct Answer: C) Both Electric Field & Magnetic field. 18. A ship is to reach a place 8 degree south of west. In what direction should the ship be steered, if declination at the place is 18 degrees west? A) West of magnetic north at angle 64 degrees. B) East of magnetic north at angle 64 degrees. C) West of magnetic south at angle 50 degree. D) East of magnetic south at angle 18 degree. E) We don't know brother. Show Answer Correct Answer: A) West of magnetic north at angle 64 degrees. 19. Which of the following is not the source of magnetic field: A) Moving charge. B) Electric current. C) Magnet. D) A small piece of iron. Show Answer Correct Answer: D) A small piece of iron. 20. A heating producing device should be used in an electric circuit. This device should have A) High resistance and low melting point. B) Low resistance and high melting point. C) High resistance and high melting point. D) Low resistance and low melting point. Show Answer Correct Answer: B) Low resistance and high melting point. 21. The soft Iron core, on which the coil is wound, plus the coils, is called A) An Armature. B) A coil. C) A motor. D) A generator. Show Answer Correct Answer: A) An Armature. 22. The region surrounding a magnet, in which the force of the magnet can be detected, is said to have a ..... A) Magnetic field. B) Electric field. C) Gravitational field. D) Both electric and magnetic field. Show Answer Correct Answer: A) Magnetic field. 23. If a long copper rod carries a direct current, the magnetic field associated with the current will be A) Only inside the rod. B) Only outside the rod. C) Both inside and outside the rod. D) Neither inside nor outside the rod. Show Answer Correct Answer: C) Both inside and outside the rod. 24. Earth wire carries A) Current. B) Voltage. C) No current. D) None of the above. Show Answer Correct Answer: C) No current. 25. Who discovered Magnetic Effect of Current: A) Faraday. B) Fleming. C) Newton. D) Oasted. Show Answer Correct Answer: D) Oasted. ← PreviousNext →Related QuizzesClass 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 1Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 2Class 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 5Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 6Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 7Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 9Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 10Class 10 Science Chapter 13 Magnetic Effects Of Electric Current Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books