Question

Which of the following describes both an electromagnet and a permanent magnet?
*
1 point
The poles can be reversed.
The strength of the magnetic force can be controlled.
The magnetic force can be turned off and on.
It has a north pole and a south pole.

Answer 1

The correct answer is: **It has a north pole and a south pole.**

Both electromagnets and permanent magnets have a north pole and a south pole. The other options describe characteristics that are specific to either electromagnets (such as the ability to control strength or turn the magnetic force on and off) or not applicable to permanent magnets (which have fixed poles).