{"id":2142,"date":"2017-05-23T11:42:03","date_gmt":"2017-05-23T11:42:03","guid":{"rendered":"http:\/\/www.experimentoscientificos.es\/?p=2142"},"modified":"2018-03-20T20:35:49","modified_gmt":"2018-03-20T20:35:49","slug":"ley-faraday-lenz","status":"publish","type":"page","link":"https:\/\/www.experimentoscientificos.es\/en\/ley-faraday-lenz\/","title":{"rendered":"Faraday-Lenz law, electromagnetic induction and induced electromotive force"},"content":{"rendered":"

The electromagnetic induction,<\/strong> defined through the Faraday-Lenz Law<\/strong>is the production of electric currents by time-varying magnetic fields. This phenomenon indicates that it is the existence of a magnetic field that will produce electric currents. In addition, the electric current increases as the speed at which magnetic flux variations occur increases.<\/p>\n

These facts allowed the law known as the Faraday-Lenz law to be enunciated.<\/p>\n

FARADAY'S LAW - LENZ<\/strong><\/h2>\n

Based on the principle of conservation of energy, Michael Faraday believed that if an electric current was capable of generating a magnetic field, then a magnetic field must also produce an electric current.<\/p>\n

In 1831 Faraday carried out a series of experiments that enabled him to discovering the phenomenon of electromagnetic induction<\/strong> . He discovered that, by moving a magnet through a closed circuit of conducting wire, an electric current, called an induced current, was generated. Moreover, this current also appeared when the wire was moved over the same magnet when it was still.<\/p>\n

A visual application of the\u00a0Faraday-Lenz law<\/strong>This can be seen by passing a magnet through a copper tube. The falling magnet would be a moving magnetic field that would produce an electric current. In turn, this electric current is creating a magnetic force on the magnet in the opposite direction of the movement, slowing it down<\/strong>. This experiment is known as the first electric generator<\/a>.<\/p>\n