Question

Why does the galvanometer deflect in the opposite direction?

Answer 1

Galvanometer:

1. A galvanometer is a device used to detect small electric current or to measure the magnitude of it.
2. The movement of magnetic needle or that of a coil in a magnetic field are used to indicate the current and intensity.
3. When the south pole of the bar magnet is moved towards or away from the coil, the deflection in the galvanometer will be opposite to that observed with the north pole for similar movement.
4. This indicates that current is induced in the coil when there is a relative motion between the coil and the magnet.
5. When the magnet is moved away, the galvanometer shows deflection in the opposite direction indicating that the direction of the induced current is reversed.