Question

What is an electromagnet?



A.
a magnet produced by the electromagnetic spectrum

B.
any magnet made of metal that can conduct electricity

C.
any metallic core wrapped with coils of wire to make a magnet

D.
a metallic core like iron wrapped by coils of wire carrying electrical current

Answer 1

D. a metallic core like iron wrapped by coils of wire carrying electrical current

An electromagnet is formed when electric current flows through coils of wire, producing a magnetic field that is concentrated by a ferromagnetic core (commonly iron).