Electromagnets
Hans Christian Oersted was the first scientist to study electromagnetism. He was a physics professor at the University of Copenhagen. In 1819 he discovered that a magnetic needle is deflected at right angles to a wire carrying an electric current, thus initiating the study of electromagnetism. This discovery, which showed a connection between electricity and magnetism, was followed up by the French scientist André Marie Ampère, who studied the forces between wires carrying electric currents, and by the French physicist Dominique François Jean Arago, who magnetized a piece of iron by placing it near a current-carrying wire. In 1831 the English scientist Michael Faraday discovered that moving a magnet near a wire induces an electric current in that wire, the inverse effect to that found by Oersted: Oersted showed that an electric current creates a magnetic field, while Faraday showed that a magnetic
. . .
Some common words found in the essay are:
William Sturgeon, Henry Joseph, University Copenhagen, Oersted Oersted, Clerk Maxwell, Michael Faraday, Jean Arago, Marie Ampère, electric current, Christian Oersted, magnetic field, helix iron core, core placed, range frequencies, helix iron, iron core, carrying electric, electric field, electricity magnetism, electromagnetic spectrum, iron core placed,
Approximate Word count = 621
Approximate Pages = 2 (250 words per page double spaced)
|
 |