Question

Find the odd man out: Loudspeaker, Microphone, Electric motor, Magnet.

• A. Loudspeaker
• B. Microphone
• C. Electric motor
• D. Magnet

Hint:

Devices like loudspeakers, microphones, and electric motors actively use magnetic fields and electricity to function, while a magnet is a passive object that creates a magnetic field.

Answer 1

The Correct Option is D

The odd one out is the magnet. A loudspeaker, microphone, and electric motor are all devices that involve the interaction of electromagnetic fields to function. A loudspeaker and microphone convert sound into electrical signals and vice versa, while an electric motor converts electrical energy into mechanical energy using magnetic fields. A magnet, on the other hand, is a passive object that does not rely on electricity or electromagnetism to operate in the same way as the other devices.