Which of the following devices does NOT rely upon the principles of electromagnetism to function?
A) Solenoid
B) Headlight
C) Relay
D) Ignition coil

Question

Quizplus · Accepted Answer

Headlights primarily rely on the principle of incandescence, where light is produced by heating a filament until it glows, rather than electromagnetism. Solenoids, relays, and ignition coils all operate based on electromagnetic principles.

Which of the Following Devices Does NOT Rely Upon the Principles