Question

when the electric current is switch off the coil. generally loses its magnetism .such coil are called​

Answer 1

Answer:

electromagnet

Explanation:

The coil in the above activity behaves like a magnet when electric current flows through it. When the electric current is switched off, the coil generally loses its magnetism. Such coils are called electromagnets

Answer 2

Answer:

Solenoid( A form of electromagnet)

Explanation:

It works on the principle of an electromagnet, when current is passed through the coil the coil behaves like a bar magnet, and when the supply of electricity pauses the magnetism also pauses!

We can use this to control the magnetism of any coil accordingly.