Who discovered magnetic effects of current
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Hans Christian Oersted
The magnetic effect of electric current was discovered by Hans Christian Oersted in the year 1982. On 21 April 1820, Oersted published his discovery that a compass needle was deflected from magnetic north by a nearby electric current, confirming a direct relationship between electricity and magnetism.
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Hans Christian Ørsted, Ørsted also spelled Oersted, (born August 14, 1777, Rudkøbing, Denmark—died March 9, 1851, Copenhagen), Danish physicist and chemist who discovered that electric current in a wire can deflect a magnetized compass needle, a phenomenon the importance of which was rapidly recognized and which inspired the development of electromagnetic theory.
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