{"id":727,"date":"2014-10-08T10:53:15","date_gmt":"2014-10-08T08:53:15","guid":{"rendered":"http:\/\/www.pasqualerobustini.com\/blog\/?page_id=727"},"modified":"2020-12-08T11:26:58","modified_gmt":"2020-12-08T10:26:58","slug":"linduzione-elettromagnetica","status":"publish","type":"page","link":"https:\/\/www.pasqualerobustini.com\/en\/istillplayvinyl\/alta-fedelta\/linduzione-elettromagnetica\/","title":{"rendered":"Electromagnetic induction"},"content":{"rendered":"<p>In 1831, the English physicist Michael Faraday observed that when a conductor coil moves in a magnetic field it is crossed by a transient current (only during motion); at the same time, a transient current will also appear in a conductor immersed in a time varying magnetic field (caused by a moving magnet), only for the duration of the magnetic flux variation.<\/p>\n<p><a href=\"http:\/\/www.pasqualerobustini.com\/wp-content\/uploads\/2014\/10\/hifi-Faraday-Neumann.gif\"><img class=\"aligncenter wp-image-729 size-full\" src=\"https:\/\/www.pasqualerobustini.com\/wp-content\/uploads\/2014\/10\/hifi-Faraday-Neumann.gif\" alt=\"hifi-Faraday-Neumann\" width=\"610\" height=\"344\" \/><\/a><\/p>\n<p>This is important to underline &#8211; only when the magnetic flux varies, no matter who&#8217;s moving, the conductor or the magnet. The principle of electromagnetic induction has various applications, such as the dynamo: a magnet in constant rotation within a coil, a spiral of conductor wire. The mere fact that a rotating magnet continuously generates a varying magnetic flux in the coil, generates a current in it.<\/p>\n<p><a href=\"http:\/\/www.pasqualerobustini.com\/wp-content\/uploads\/2014\/10\/dynamo1.gif\"><img class=\"aligncenter wp-image-3410 size-full\" src=\"https:\/\/www.pasqualerobustini.com\/wp-content\/uploads\/2014\/10\/dynamo1.gif\" alt=\"dynamo1\" width=\"480\" height=\"438\" \/><\/a><\/p>\n<p>The rotation can be provided by a windmill&#8217;s or watermill&#8217;s blades (for example near a waterfall or artificial dam); vapor generated by heating water can also provide rotation, by burning various kinds of fuels like coal, oil, gas &#8230;or by water heated through radioactive decay of certain elements. In a more prosaic case, the rotating magnet can be connected to a spinning bicycle wheel&#8230;<\/p>\n<p>Thus, movement generates electric energy&#8230;<\/p>\n<p>&lt; <a title=\"La corrente elettrica\" href=\"http:\/\/www.pasqualerobustini.com\/en\/alta-fedelta\/la-corrente-elettrica\/?lang=en\">The electric current<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>In 1831, the English physicist Michael Faraday observed that when a conductor coil moves in a magnetic field it is crossed by a transient current (only during motion); at the same time, a transient current will also appear in a conductor immersed in a time varying magnetic field (caused by a moving magnet), only for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":623,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/pages\/727"}],"collection":[{"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/comments?post=727"}],"version-history":[{"count":9,"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/pages\/727\/revisions"}],"predecessor-version":[{"id":6588,"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/pages\/727\/revisions\/6588"}],"up":[{"embeddable":true,"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/pages\/623"}],"wp:attachment":[{"href":"https:\/\/www.pasqualerobustini.com\/en\/wp-json\/wp\/v2\/media?parent=727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}