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in Physics by (56.2k points)

A coil of insulated copper wire is connected to a galvanometer. What would happen if a bar magnet is : 

(i) Pushed into the coil ? 

(ii) Withdrawn from inside the coil ? 

(iii) Held stationary inside the coil ?

1 Answer

+1 vote
by (78.5k points)
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Best answer

(i) Due to change in magnetic flux linked with the coil, the galvanometer shows deflection (say towards the right). 

(ii) Due to change in magnetic flux linked with the coil, the galvanometer shows deflection (say towards left opposite to that in case one). 

(iii) As it is stationary, no change in magnetic flux linked with the coil, so galvanometer shows no deflection.

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