EVERYDAY SCIENCE

Detailed explanation-1: -Solution: An electromagnet is a temporary magnet which behaves like a magnet when an electric current is passed through the insulated copper wire and loses its magnetism when current is stopped. It has a soft iron piece called the core with an insulated copper wire wound on it. Lido Learning.

Detailed explanation-2: -Explanation: An electromagnet is called a temporary magnet because it produces a magnetic field only when the current flows in its coil.

Detailed explanation-3: -Electromagnets behave as a magnet only when electric current flows through them. So, they are temporary magnets.

Detailed explanation-4: -An electromagnet is a temporary magnet made by winding a coil of wire around a piece of soft iron.

Detailed explanation-5: -electromagnet, device consisting of a core of magnetic material surrounded by a coil through which an electric current is passed to magnetize the core. An electromagnet is used wherever controllable magnets are required, as in contrivances in which the magnetic flux is to be varied, reversed, or switched on and off.