Question

In which of the following case, we would not be able to induce a current?

• A. The loop is moved in the direction of magnet.
• B. The magnet is moved in the direction of loop.
• C. The loop and and the magnet both are moved in the opposite direction with the same speed.
• D. The loop and the magnet both are moved in the same direction with the same speed.

Answer 1

The correct option is D The loop and the magnet both are moved in the same direction with the same speed.

The current is induced in the loop only when there is a change in magnetic field lines linked with the loop. If the loop and the magnet are moved in the same direction with the same speed, no change will be there, so no current will be induced in the loop.