Magnetism and Matter Class 12 MCQs Questions with Answers

1. The radius of curvature of the path of charged particle in a uniform magnetic file is directly proportional to the

2. The neutral point in the magnetic field of a horizontally placed bar magnet is a point where the magnetic field due to that bar magnet is:

3. The magnetic field of earth is due to:

4. Ferrites may be:

5. Which of the following has a low value in ferrites?

6. The Mariner’s compass is provided with Gimbals arrangement so as to :

7. The strength of the earth’s magnetic field is

8. The earth behaves as a magnet with magnetic field pointing approximately from the geographic

9. Tangent law is applicable only when:

10. Which of the following is not showing the essential difference between electrostatic shielding by a conducting shell and magnetostatic shielding?

11. A current carrying power line carries current from west to east. What will be direction of magnetic field 1 meter above it?

12. The Mariner’s compass is provided with Gimbals arrangement so as to :

13. Magnetic moment for solenoid and corresponding bar magnet is

14. Which of the following property shows the property of ferromagnetic substances?

15. What is the angle of dip at a place where the horizontal component of earth’s magnetic field is equal to the vertical component?

16.  
Which among the following is denoted by δ?

17. If the magnetising field on a ferromagnetic material is increased, its permeability.

18. The primary origin(s) of magnetism lies in

19. Which of the following has higher magnetic susceptibility?

20. Let the magnetic field on earth be modelled by that of a point magnetic dipole at the centre of earth. The angle of dip at a point on the geographical equator is