Question

what is an electromagnet​

Answer 1

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.

Answer 2

Answer:

 ${\huge{\boxed{\mathcal{\orange{Gd mrng}}}}}$

Explanation:

a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.