Question

Why is electromagnet called a temporary magnet?

Answer 1

Electromagnets are called temporary magnets because they act as magnets only  until the current is passed through them...and they loose their magnetic properties if the flow of current is stoped

Answer 2

The movement of electrons causes both, and every electric current has its own magnetic field. ... You can make a temporary magnet by stroking a piece of iron or steel (such as a needle) along a permanent magnet. There is another way that uses electricity to make a temporary magnet, called an electromagnet.