{"id":5985,"date":"2017-04-17T19:04:03","date_gmt":"2017-04-17T19:04:03","guid":{"rendered":"http:\/\/demos.swarthmore.edu\/physics\/?p=5985"},"modified":"2024-01-19T19:10:39","modified_gmt":"2024-01-19T19:10:39","slug":"homopolar-motor","status":"publish","type":"post","link":"https:\/\/demos.swarthmore.edu\/physics\/2017\/04\/homopolar-motor\/","title":{"rendered":"Homopolar Motor"},"content":{"rendered":"<p><a href=\"http:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171301a.jpg\" rel=\"attachment wp-att-5983\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5983 aligncenter\" src=\"http:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171301a-300x169.jpg\" alt=\"0417171301a\" width=\"566\" height=\"319\" srcset=\"https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171301a-300x169.jpg 300w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171301a-768x432.jpg 768w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171301a-1024x576.jpg 1024w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171301a-772x434.jpg 772w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171301a-624x351.jpg 624w\" sizes=\"(max-width: 566px) 100vw, 566px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">\u00a0<a href=\"http:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171312.jpg\" rel=\"attachment wp-att-5984\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-5984 aligncenter\" src=\"http:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171312-169x300.jpg\" alt=\"0417171312\" width=\"274\" height=\"487\" srcset=\"https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171312-169x300.jpg 169w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171312-768x1365.jpg 768w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171312-576x1024.jpg 576w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171312-772x1372.jpg 772w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171312-351x624.jpg 351w, https:\/\/demos.swarthmore.edu\/physics\/wp-content\/uploads\/sites\/2\/2017\/04\/0417171312.jpg 1404w\" sizes=\"(max-width: 274px) 100vw, 274px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Wire balances on top of battery and is free to rotate. Top of wire touches positive terminal; bottom of wire touches magnet connected to negative terminal. Wire completes circuit and current travels through wire. Direction of magnetic field creates a Lorentz force that causes wire to turn.<\/p>\n<p style=\"text-align: left;\">Historical significance: First electric motor. First successful model devised by Michael Faraday. See:\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Homopolar_motor\">https:\/\/en.wikipedia.org\/wiki\/Homopolar_motor<\/a><\/p>\n<ul>\n<li style=\"text-align: left;\">Located in L01, section B-4.<\/li>\n<\/ul>\n<p style=\"text-align: left;\">\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 Wire balances on top of battery and is free to rotate. Top of wire touches positive terminal; bottom of wire touches magnet connected to negative terminal. Wire completes circuit and current travels through wire. Direction of magnetic field creates a Lorentz force that causes wire to turn. Historical significance: First electric motor. First successful &hellip; <a href=\"https:\/\/demos.swarthmore.edu\/physics\/2017\/04\/homopolar-motor\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Homopolar Motor<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":5983,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,44,4,46,47],"tags":[642,354],"_links":{"self":[{"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/posts\/5985"}],"collection":[{"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/comments?post=5985"}],"version-history":[{"count":3,"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/posts\/5985\/revisions"}],"predecessor-version":[{"id":5993,"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/posts\/5985\/revisions\/5993"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/media\/5983"}],"wp:attachment":[{"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/media?parent=5985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/categories?post=5985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demos.swarthmore.edu\/physics\/wp-json\/wp\/v2\/tags?post=5985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}