Question

Why is electro-magnetic induction so called? A coil connected to a sensitive galvanometer is held stationary. A bar magnet with its North Pole facing coil is moving towards the coil at a certain speed. The galvanometer needle shows deflection of 10 divisions towards the right of the centre of the scale. How will the reading on the galvanometer scale be affected if the south pole of the bar magnet facing the coil is moved away at the same speed?

Answer 1

Answer:

If the magnet is held stationary near, or even inside, the coil, no current will flow through the coil. If the magnet is moved, the galvanometer needle will deflect, showing that current is flowing through the coil