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Class 12 Physics (Part I) Chapter 4 Moving Charges And Magnetism Quiz 2 (25 MCQs)

Quiz Instructions

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1. If a charged particle moves through a magnetic field perpendicular to it
2. . The radius of the circle described by a charged particle moving perpendicular to a uniform magnetic field depends on
3. A current loop placed in a non-uniform magnetic field experiences
4. A galvanometer of $100\Omega$
5. Dave notices that a wire is magnetic and attracts metal objects, What can be concluded about the wire?
6. Some objects that normally aren't magnetic can become magnetized when connected to a circuit. Items that are magnetized in this way are called .....
7. When a charge of 1C moving with velocity 1 m/s normal to a magnetic field experiences a force 1 N, then the magnitude of the magnetic field is
8. A straight conductor carries a current from south north. Point P and Q lie to the east and west of it at the same distance. the magnetic point at P is
9. Two wires of same length are shaped into a square and a circle if they carry same current, ratio of magnetic moment is:
10. How is a permanent magnet DIFFERENT from a temporary magnet?
11. The magnetic moment of a current I carrying a circular coil of radius r and number of turns N varies as
12. An electron is moving with velocity v along the axis of a long straight solenoid carrying current I. What will be the force acting on the electron due to the magnetic field of the solenoid?
13. Biot-Savart law indicates that moving electros ( velocity v) produces a magnetic field B such that
14. What is meant by the figure of merit of a galvanometer?
15. An electric charge q is moving with a velocity v in the direction of a magnetic field B. The magnetic force acting on the charge is
16. Which of the following can produce a magnetic field?
17. A charged particle is moving on circular path with velocity v in a uniform magnetic field B, if the velocity of the charged particle is doubled and strength of magnetic field is halved, then radius becomes
18. A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not depend upon
19. A current carrying loop is placed in a uniform magnetic field. The torqe acting on it does not depend upon
20. Every magnet has both a ..... pole and a ..... pole.
21. The force experienced by a point charge moving with velocity v in presence of both electric and magnetic field
22. When the charged particles move in a combined magnetic and electric field, then the force acting is known as .....
23. Assertion(A):A compass needle when placed on the magnetic north pole of the earth rotates in verticaldirection.Reason(R):The earth has only horizontal component of its magnetic field at the north pole.
24. A positive charge with a negative charge (North with South) creates
25. Magnetism is caused by .....
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