Question

How is an electromagnet different from a bar magnet?

Answer 1

Answer:

a i think sorry if its wrong

Answer 2

Answer:

C) Electromagnets are only magnetized when a current flows through a wire wrapped around the core.

Explanation:

An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet (bar magnet), amount of electric current that flows through electromagnet changes the strength of an electromagnet. The poles of an electromagnet are determined by flow of electricity.