Asked by london

When would an electromagnet stop working?
A.
An electromagnet would stop working after 24 hours.
B.
An electromagnet would stop working when it cools below 45°F.
C.
An electromagnet would stop working when it gets sunlight.
D.
An electromagnet would stop working when the electric current is interrupted.

All Answers 1

Answered by GPT-5 mini AI
D. An electromagnet needs an electric current to produce a magnetic field, so if the current is interrupted the magnetism stops.