Magnetism and Electromagnetism - Interview Questions | Exam2Win

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6. The left hand rule correlates to

A. current, induced e.m.f. and direc�tion of force on a conductor

B. magnetic field, electric field and direction of force on a conductor

C. self induction, mutual induction and direction of force on a conductor

D. current, magnetic field and direc�tion of force on a conductor

Explanation:

7. The use of permanent magnets is. not made in

A. magnetoes

B. energy meters

C. transformers

D. loud-speakers

Explanation:

8. When an iron piece is placed in a magnetic field

A. the magnetic lines of force will bend away from their usual paths in order to go away from the piece

B. the magnetic lines of force will bend away from their usual paths in order to pass through the piece

C. the magnetic field will not be affected

D. the iron piece will break

Explanation:

9. Paramagnetic materials have relative permeability

A. slightly less than uuity

B. equal to unity

C. slightly more than unity

D. equal to that ferromagnetic mate rials

Explanation:

10. Ferrites are materials.

A. paramagnetic

B. diamagnetic

C. ferromagnetic

D. none of the above

Explanation:

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