Question

How would you demonstrate the presence of an induced current in the absence of a galvanometer?

Answer 1

Explanation:

Connect the coil C' to a powerful battery. Move coil C' rapidly towards or away from coil C. (b) Replace the galvanometer by a small bulb of torch light. The relative motion between the two coils will cause the bulb to glow indicating the production of induced current in coil C.