This video demonstrates the relationship between electricity and magnetism and shows how to construct an electromagnet using a 4 inch iron nail, 5 meters of copper wire and a 1.5 volt AA battery. Electromagnetism was discovered by the Danish scientist Oersted. Electromagnetism is the science behind electric motors, solenoids, speakers and electromagnets.
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2 Comments
Fun! I wonder how big and powerful you can make these things...
Thats Cool! can we make magnets through AC current directly from our home plug socket instead of using a battery?
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