A coil of insulated copper wire is connected to a galvanometer. What would happen if a strong bar magnet is (a) pushed into the coil?(b) withdrawn from inside the coil?(c) held stationary inside the coil?Give justification for each observation.

A coil of insulated copper wire is connected to a galvanometer. If a strong bar magnet is-

(i) pushed into the coil, then a momentary deflection in the needle of the galvanometer to one side (left/right) is observed.

(ii) withdrawn from inside the coil, then a momentary deflection in the needle of the galvanometer is observed, but now in the opposite direction.

(iii) held stationary inside the coil, then no deflection is observed in the galvanometer.

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Updated on: 10-Oct-2022

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