Question

In the diagram shown if a bar magnet is moved along the common axis of two single turn coils $A$ and $B$ in the direction of arrow

• A. Currents is induced only in $A$ & not in $B$
• B. Induced currents in $A$ & $B$ are in the same direction
• C. Current is induced only in $B$ and not in $A$
• D. Induced currents in $A$ & $B$ are in opposite direction

Answer 1

The correct option is D Induced currents in $A$ & $B$ are in opposite direction

The correct option (d) both A & B in opposite direction.

As, When bar is moving along common axis of two coils then current is included in both coils. Because when magnet is moving, there will be change of magnetic flux linked with the circuit. And change of flux will result into emf and finally current is induced in both the coils and direction in one coil will be clockwise and in other coil it will be anticlockwise.