Physics Practice: Magnetism (Mock Test 3 - Advanced)
1. Why is "Magnetic Induction" said to precede attraction?
2. Repulsion is the only sure test for magnetism because:
3. How does the "Single Touch Method" of magnetization work?
4. Why does a freely suspended magnet rest in the North-South direction?
5. Which of the following best explains "Molecular Theory of Magnetism"?
6. Soft iron is used to make electromagnets because:
7. The strength of an electromagnet can be increased by:
8. What happens to the "Effective Length" of a magnet compared to its "Geometric Length"?
9. Which process causes a magnet to lose its properties through "Mishandling"?
10. In the "Double Touch Method," which poles are used to stroke the bar from the center?
11. Magnetic lines of force ________ each other.
12. A "Neutral Point" in a magnetic field is a point where:
13. Magnetic induction is ________ property.
14. When stroking a steel bar with the North pole of a magnet (starting at end A and ending at end B), end B becomes:
15. Why are steel needles used for making permanent compass needles?
16. The direction of magnetic field lines inside a bar magnet is:
17. Which of the following is used in the construction of an electric bell?
18. If like poles of two magnets are brought together, they will ________.
19. Magnetic field strength is measured in:
20. In "Self-demagnetization," the poles at the ends of a magnet ________ each other over time.
