Question

A magnet is brought towards a coil speedily slowly then the induced emf will be

Answer 1

* When a bar magnet is pushed inwards of a coil ,an induced current is set up due to change in magnetic field.

Hence galvanometer deflects right.

*When bar magnet is withdrawn from inside the coil,induced current is set up due to change in magnetic field.

Hence galvanometer deflects left.

* When bar magnet held stationary inside the coil there is no change in magnetic field,hence no induced current.

Such that galvanometer doesn't show any deflection.

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