Question

Two circular coils A and B are placed close to each other. If the current in the coil A is changed, will some current be induced in the coil B? Give reason.

Answer 1

Yes, by changing current in coil A, some current will be induced in coil B. The reason is that when current in coil A is changed, the magnetic field around A changes, so magnetic flux linked u-ith nearby coil B changes; this gives rise to an induced current in coil B.