Question on: JAMB Physics - 2022
A bar magnet is placed near and lying along the axis of a solenoid connected to a galvanometer. The pointer of the galvanometer shows no deflection when?
A
the magnet is moved towards the stationary solenoid
B
there is no relative motion
C
the magnet is moved away from the stationary solenoid
D
the solenoid is moved away from the stationary magnet
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Correct Option: B
No relative motion because when both the coil and the magnet are stationary there is no change in the magnetic flux hence, no current is induced in the coil.
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