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.
The current if changed in coil A. Some current will be induced in the coil B. Reason: When the current in coil A is changed, the magnetic field around it also changes. As the coil B is placed very close to the coil A, the magnetic field lines around B coil also changes due to this as current is induced in it.