Question

electromagnet should show rapid ____when current is switched _____

Answer 1

magnetic field on. i

Answer 2

The sentence after filling up the blanks is following - Electromagnet should show rapid magnetic field when current is switched on.

The electro magnet can be referred as the magnet in which a magnetic field is formed by the electric current.

On the other hand, the field gets disappeared when current is switched off.

This type of magnet consists of the wire wound into the coil.