Electromagnets
Richelle Stiles
What is an electromagnet?
A soft metal core made into a magnet by the passage of electric current through the coil around it. It works because, an electric current produces a magnetic field. William Sturgeon invented the electromagnet by self-educating himself.
Examples of electromagnets used in everyday life
Vacuum cleaner
Washing machine
Speaker
What Are Electromagnets? (Mr. Wizard)