Question

Select the correct answer.
An electromagnet is a device in which moving electric charges (current) in a coil of wire create a magnet. What’s one advantage of using electromagnets in devices?
A.
Electromagnets have a strong, constant magnetic field.
B.
Electromagnets are more powerful than permanent magnets.
C.
Electromagnets don’t need a source of electricity to work.
D.
Electromagnets can easily be turned on and off.

Answer 1

Answer:

Please mark brainliest.

Your answer is...

D. Electromagnets can easily be turned on and off.

Answer 2

Answer: Its D i just took the test and got 100% and i looked at the facts!