____ are magnets that do not require any power or force to maintain their field.
A) Natural magnets
B) Manmade magnets
C) Electromagnets
D) Permanent magnets

Question

Quizplus · Accepted Answer

Permanent magnets are made from materials such as iron, cobalt, and nickel and maintain their magnetic field without any external power source or force. Natural magnets, such as lodestones, and manmade magnets, such as electromagnets, require some external force or power source to maintain their magnetic field.

____ Are Magnets That Do Not Require Any Power or Force