GEOLOGY

Detailed explanation-1: -The magnetic domains of a permanent magnet are arranged randomly. Because of the magnetic field, magnets don’t have to touch to affect each other. The magnetic domain is the area around a magnet where the force acts. If a magnet is broken in half it loses its magnetism.

Detailed explanation-2: -The entire magnetic domain acts like a bar magnet with a north and a south pole. In a material that is not magnetized, the magnetic domains point in random directions. In a magnetized material, all or most of the magnetic domains are arranged in the same direction. The magnetic fields of the domains are aligned.

Detailed explanation-3: -When there is no external magnetic field present, the domains are also oriented randomly so that there is no net magnetic field. However, when an external magnetic field is present, the domains will rotate and align with the external magnetic field.

Detailed explanation-4: -Its domains are randomly oriented, like the first picture above. If you bring a magnet is brought nearby, the domains of the iron nail will align in such a way that, the north pole of iron domains will face the south pole of the magnet, and visa versa.