What an electro magnet is and how it works
Do you ever wonder what an electro magnet is or how it works? Well it is fairly simple being the genius that you are. An electro magnet is simple to create and is even more fun to play with. The definition of an electro magnet is a temporary magnet that creates a small electrical field when electricity flows through it. I made mine using some copper wire, a 9v, and a nail. The nail is …
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…an American physicist named Joseph Henry. In 1825 William Sturgen showed that an iron core strengthens a magnetic field. Electro magnets are only temporary because they only work as long as an electrical current flows through it. When you wrap the wire around the core or nail and attach it to a battery it conducts the current and sends it through the nail creating a magnetic field. This was discovered in 1820 by Danish Physicist Hans Orested.
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