The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas Commerford, 1856-1924, Tesla, Nikola, 1856-1943 · New York : The Electrical Engineer · leaf 481
ir-enit when the lamp is ent out, and then the eiirrent l>ein<; in theop|)osite direction pr(»duces in the main maii:net, niai;netism ofthe o|)]>osite polarity. The ojxration is as tollow>: At the start the carhoiis ai-e toi>e in contact, and the cnrrent passes from the positive… … tive l>in<iiniX-post. I |»on the passaiic of the cniTent the mainmamiet is eneririzcd and attracts the clampini^-aiinatnre y, swiny;-iiifr the clamp and ^■Iippini,^ the i-od liy means of the ii:ripj)inirjaws ^^ ^^ At the same time the armatnreh\-er i. is pulled downand the cai]»on> are…
Electric currents, Alternating · Electrical engineering
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