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The Dawn of Electro-Magnetism

2015; Springer International Publishing; Linguagem: Inglês

10.1007/978-3-319-21816-8_7

2192-4791

Kerry Kuehn,

Electric Motor Design and Analysis

So far, we have explored magnetism and electricity as separate phenomena. This is the legacy of William Gilbert, Gilbert, William who recognized that while magnets and electrically charged bodies can exert forces, they do not exert forces on each other: electrically charged bodies attract or repel other electrically charged bodies; magnetic bodies attract or repel other magnetic bodies. This simple and pleasant demarcation was upset by the work of Hans Christian Oersted (1777–1851), Oersted, Hans Christian who was born in Rudkøbing, Denmark. Today, Oersted is best known for his discovery of the connection between electrical currents and magnetism. This work, described in the reading selection in this chapter, inspired later experiments on electromagnetic phenomena by both Faraday and Ampère and culminated in Maxwell’s electromagnetic theory of light. Originally written in Latin, Oersted’s Experiments on the Effect of a Current of Electricity on the Magnetic Needle was translated into English and published in 1820 in Thomson’s Annals of Philosophy.