GEOLOGY

Detailed explanation-1: -Only in the presence of a stronger magnet will a temporary magnet generate its own magnetic field. To put it another way, these magnets need the help of a stronger force in order to attract other objects and magnets.

Detailed explanation-2: -We can make a piece of an iron metal temporary magnet by rubbing a magnet on its surface.

Detailed explanation-3: -Bringing a ferromagnetic object, like a nail, into the magnetic field of a strong magnet can cause the molecules of the iron material to line up and the nail to become a temporary magnet.

Detailed explanation-4: -Iron bar as a temporary magnet Rubbing a magnet 30 to 40 times on a horizontal line along the length of a non-magnetised iron bar can magnetise it. It is important to rub in one direction.

Detailed explanation-5: -Electromagnets can be created by wrapping a wire around an iron nail and running current through the wire. The electric field in the wire coil creates a magnetic field around the nail. In some cases, the nail will remain magnetised even when removed from within the wire coil.