What kind of magnet is used in ceiling fans?

Correct answer: Both A & B. Traditional fans use electromagnets (induction motors), while modern BLDC fans use electromagnetic coils together with permanent magnets.

Background: BLDC stands for brushless direct current motor.

• Electromagnet only: Electromagnets alone are not used in all ceiling fans.
• Permanent magnet only: Permanent magnets alone are not used in traditional fans.
• None of these: “None of these” is incorrect because both A and B is correct.

Did you know? BLDC fans use much less electricity.

Memory trick: Old fan = electromagnet; new fan = both.