A coil of insulated copper wire is connected | vedclass

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(B) According to the principle of electromagnetic induction,a current is induced in a coil when there is a change in the magnetic flux linked with it.

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The galvanometer needle will show a deflection in the opposite direction.

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(B) According to the principle of electromagnetic induction,a current is induced in a coil when there is a change in the magnetic flux linked with it.When a bar magnet is moved relative to a coil,the magnetic field lines passing through the coil change,inducing an electric current.When the bar magnet is withdrawn from inside the coil,the direction of the change in magnetic flux is reversed compared to when it was inserted.Consequently,a current is induced in the opposite direction,causing the galvanometer needle to deflect momentarily in the opposite direction.

$A$ coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is withdrawn from inside the coil?

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