What is an Electromagnet?
An electromagnet is a magnet that is powered by an electric current. It can be turned on and off and the strength can be controlled by increasing or decreasing by changing the amount of current. Electromagnets are usually made by wrapping wire around an iron core – learn how to make your own with Science Bob.
What are they used for?
Electromagnets are in many everyday objects – they are used in motors, generators, speakers, and even trains.
Learn More About Electromagnets:
How Electric Motors Work – How Stuff Works
What is an Electromagnet? – Jefferson Lab
Experiments With Electromagnets – CoolMagnetMan.com
What is an Electromagnet? – Study.com