Question

What what change in the Galvanometer needle would you observe when a strong magnet is kept at a distance from the coil

Answer 1

The galvanometer does not show any deflection.

You can understand better from this diagram.......

Answer 2

The change is as follows:

Explanation:

• Place the magnet near the coil in a stationary position, with the north pole facing the coil's end B.
• When the coil is moved towards the north pole of the magnet, the galvanometer needle deflects to the right.
• When the coil is moved away, the needle also moves to the left.

• The current flowing through the coil is proportional to the deflection of the galvanometer's needle.

• The coil swings due to the induced magnetic field, which attracts the south pole of the coil's magnetic field to the north pole of the bar magnet field.