Question

A current is induced in coil C1 due to the motion of current carrying coil C2.(a) Write any two ways by which a large deflection can be obtained in the galvanometer G. (b) Suggest an alternative device to demonstrate the induced current in place of a galvanometer.

Answer 1

There are two ways of increasing the deflection of a galvanometer in induction:

1) To increase the amount of current flowing through the conductor - If we increase the current then there will be more current induced. This will therefore increase the deflection of the galvanometer.

2) To increase the number of turns of the solenoid on the core - The more the turns the more the amount of current induced. This will therefore increase the deflection of the galvanometer.

These two ways will increase the deflection of the galvanometer.