Electromagnets are a different from permanent magnets. Electromagnets are made of coils of wire with electricity passing through them. Moving charges create magnetic fields, so when the coils of wire in an electromagnet have an electric current passing through them, the coils behave like a magnet.
The importance
Electromagnetism is usful/important due to it's numerous technological and scientific applications in our daily life which include, electrical appliances, electric bells, electric generators, electric motors and MRI scanning