Question

which devices use electromagnets to work?
a. motors and generators
b. motors and compasses
c. batteries and turbines
d. compasses and switches

Explanation:

Motors use electromagnets to convert electrical energy to mechanical motion, and generators use electromagnets to convert mechanical energy to electrical energy. Compasses rely on natural magnets, batteries use chemical reactions, turbines use fluid motion, and basic switches do not depend on electromagnets for their core function.

Answer:

A. Motors and generators