GEOLOGY

Detailed explanation-1: -when the N-pole of a magnet is brought near the N-pole of a suspended magnet It pushes the suspended magnet away.

Detailed explanation-2: -Since the electromagnet is free to move, its south pole moves away from the south pole of the fixed magnet. However, as it rotates it moves closer to the north pole of the fixed magnet and is pulled toward it by an attracting force because unlike magnetic poles attract each other.

Detailed explanation-3: -A north pole will attract a south pole; the magnets pull on each other. But the two north poles will push each other away. We say the magnets repel each other.

Detailed explanation-4: -A coil of wire becomes an electromagnet when current passes through it. The electromagnet interacts with a permanent magnet, causing the coil to spin. Voilà! You’ve created an electric motor.