GEOLOGY

Detailed explanation-1: -Each half is found to have its own north and south poles. Magnetic forces, in fact, cannot be traced to unit magnetic poles of submicroscopic size in direct contrast to electric forces that are caused by actual discrete electric charges, such as electrons and protons.

Detailed explanation-2: -Every magnet has both a north and a south pole. There are no magnets with only one pole (see magnetic monopoles). With an axially magnetized disc magnet, for example, you could write a big N and an S on either round face with a marker.

Detailed explanation-3: -Every magnet has two sides: a north pole and a south pole. We use these names because if you hang a magnet from a thread, the magnet’s north pole points (almost) towards the north direction.

Detailed explanation-4: -Answer: Solution: (i) False; A magnet of any shape always has two poles: a north pole and south pole.