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A coil Q is connected to low voltage bul...

A coil Q is connected to low voltage bulb B and placed near another coil P as shown in the fiugre. Give reasons to explain the following observations :
(a) The bulb 'B' lights.
(ii) Bulb gets diameter if the coil Q is moved towards left.

Text Solution

Verified by Experts

(i) The bulb 'B' lights due to an emf induced in the coil Q.
(ii) When the coil Q is moved towards left, the emf induced in the coil Q becomes less. Hence, the bulb gets dimmer.
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