{"id":40,"date":"2019-01-21T15:43:08","date_gmt":"2019-01-21T20:43:08","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/basicelectricity\/?post_type=chapter&p=40"},"modified":"2019-10-11T18:21:15","modified_gmt":"2019-10-11T22:21:15","slug":"current","status":"publish","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/basicelectricity\/chapter\/current\/","title":{"raw":"Current","rendered":"Current"},"content":{"raw":"
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Test your knowledge<\/span><\/h2>\r\n

Before starting the chapter, let's see how much you know!<\/span><\/p>\r\n\r\n<\/header>\r\n

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[h5p id=\"8\"]<\/span><\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n \r\n\r\nWhen the free electrons move from atom to atom of a conductor or semiconductor, they typically bounce around randomly. Once a voltage is applied to the material, the electrons\u00a0move from the negative towards the positive.<\/span>\r\n\r\nRemember that electrons have a negative charge. Since the negative side of the voltage source repels the electrons, they move away from it and head towards the positive side, which they are attracted to.\r\n\r\nCurrent<\/strong>, in electrical terms, is the rate of the flow of charge. The current in a conductor is measured by the amount of charge (number of electrons) that flows past a certain point in a unit of time:\r\n\r\nI =Q \/ t\r\n\r\nAn ampere<\/strong>, or amp, is the unit for current. This is symbolized by A.\r\n\r\nThe short video below does an excellent job of explaining current and voltage.\r\n

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Video!<\/span><\/h2>\r\n<\/header>\r\n
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\r\n\r\n[embed] https:\/\/youtu.be\/1xPjES-sHwg [\/embed]\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n

Attributions<\/h2>\r\nCurrent and Voltage<\/a> video by Matrix Education<\/a>\u00a0<\/span>is under a\u00a0<\/span>Creative Commons Attribution License<\/a>.<\/span>","rendered":"
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Test your knowledge<\/span><\/h2>\n

Before starting the chapter, let’s see how much you know!<\/span><\/p>\n<\/header>\n

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