The Electromagnet

The Electromagnet is artificial magnet or Electric magnet .It used to overcome the disadvantages of a permanent magnet because the electromagnet will produced electro magnetic forces till there is a supply of electricity(flow of electrons) it will lose its electromagnetism when there is a cut of electricity .

If we apply a nickel core in a electromagnet it will turn to a permanent magnet

Because of its gaining and losing of electromagnetic properties it gives a huge advantage like:use in cranes to transport metallic object made of iron,nickel,steel and cobalt .

History of electromagnet:

Electromagnet was invented by a British scientist “William sturgeon” in 1820’s .He discovered that electricity creates magnetism .