Question #312Radio Theory and Communication Principles

What is an electromagnet?

  1. A magnet that makes electricity.
  2. a magnet made of coiled wire that works when electricity runs through it . ✓ Correct answer
  3. a permanent magnet that is made using electricity
  4. None of the above
Explanation: An electromagnet is a magnet made of coiled wire that works when electric current flows through it; it is not a permanent magnet.