GEOLOGY

Detailed explanation-1: -Unlike-poles attract: When a north pole and south pole point together, the arrows point in the SAME direction so the field lines can join up and the magnets pull together (attract).

Detailed explanation-2: -Unlike poles of magnet attract each other while like poles repel. So, the south and the north pole of two magnets will attract each other.

Detailed explanation-3: -A magnet has two ends called poles; one end is the north pole and the other is the south pole. A north pole will attract a south pole; the magnets pull on each other. But the two north poles will push each other away.

Detailed explanation-4: -Unlike poles of different magnets attract each other; like poles repel each other. The magnetic force between a pole of one long bar magnet and that of another was described by an inverse square law as early as 1750.