Magnetism and Electromagnetism

A. copper
B. aluminium
C. soft iron
D. brass

A. Kirchhoffs law
B. Lenz’s law
C. Ampere’s law
D. Faraday’s laws

A. less than that of disc but in opposite direction
B. equal to that of disc and in the same direction
C. equal to that of disc and in the opposite direction
D. less than that of disc and in the same direction

A. 2
B. 4
C. 6
D. 8

A. ferromagnetic
B. paramagnetic
C. diamagnetic
D. dielectric

A. permanent magnets
B. transformers
C. non-magnetic substances
D. electromagnets

A. permanent magnets
B. transformers
C. non-magnetic substances
D. electromagnets

A. attracts some substances and repels others
B. attracts all paramagnetic substances and repels others
C. attracts only ferromagnetic substances
D. attracts ferromagnetic substances and repels all others

A. diamagnetic
B. paramagnetic
C. ferromagnetic
D. insulating

A. M
B. M/2
C. 2 M
D. M/4