This is a free preview. For full access
Energy: Magnetism
What is Electromagnetism
Description
What is Electromagnetism
Electromagnetism is the interaction between electricity and magnetism. When an electric current flows through a wire, it creates a magnetic field around the wire. This is how an electromagnet is formed. Unlike regular magnets, electromagnets can be turned on and off by c...
Show More
Transcript
Look at the school bell. Electric current flows through a wire inside it, creating something invisible but powerful—a magnetic field.
Electromagnetism is the magnetic field produced by an electric current flowing through a wire.
As more current flows, the magnetic field becomes stronger. It forms circular patterns around ...
Show More