what happens when the needle of a compass kept nearby when electric current is switched on in a while? why does this happen?
1. When the current is passed through the circuit, the needle of the magnet deflects.
2. This because, a current carrying wire also generated a magnetic field around it.
2. Due to this, the magnet in the needle shows a deflection.
2. This because, a current carrying wire also generated a magnetic field around it.
2. Due to this, the magnet in the needle shows a deflection.