History of the Study of Magnetism

History of the Study of Magnetism - History of the Study of...

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History of the Study of Magnetism Because magnetic fields were not discovered until recently, the history of how they were discovered is quite interesting, and informative. The Detection of Magnetic Fields We begin by giving an empirical history of the development of electromagnetic theory. As stated, people had long known that magnetic fields existed, but the only known source of these fields were permanent magnets, and no link was made to electricity. In the early 1800's, Hans Christian Oersted began to make the connection between electricity and magnetism. Oersted did most of his work using compass needles, but we will derive the existence of magnetic fields, and their relation to electricity, using more familiar systems-current carrying wires. Consider two current carrying wires running parallel to one another. A current is simply a collection of moving charges. Traditional electric theory predicts that, since the net charge on each wire is zero, there is no interaction between the two wires. Experiments in the 1800's,
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This note was uploaded on 02/09/2012 for the course PHY PHY2053 taught by Professor Davidjudd during the Fall '10 term at Broward College.

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History of the Study of Magnetism - History of the Study of...

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