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A coil is suspended in a uniform magneti...

A coil is suspended in a uniform magnetic field, with the plane of the coil parallel to the magnetic lines of force. When a current is passed through the coil it starts oscillating, then it is very difficult to stop. But, if an aluminium plate is placed near to the coil, then it stops. This is due to

A

development of air current when the plate is placed.

B

induction of electrical charge on the plate

C

Shielding of magnetic lines of force as aluminium is a paramagnetic material.

D

electromagnetic induction in the aluminium plate giving rise to electromagnetic damping.

Text Solution

Verified by Experts

The correct Answer is:
D
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