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Current Electricity

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by

Karina Schorr

on 21 April 2010

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Transcript of Current Electricity

Current Electricity Chapter 22 is all about energy transfer, and the components which make up a circuit. Electric current- a flow of charged particles Conventional current- the flow from of charged particles from higher potential difference to lower potential Battery- a cell that converts chemical energy into electric energy Electric circuit- any closed loop or conducting path which allows an electric charge to flow Amper- a measure of electric energy meausred in coulombs Resistance- a property of matter to resist an electric charge flowing through it Super conductor- a material with zero resistance to electric energy Energy supplied to a circuit can be transformed into
many kinds of energy, like mechanical and light. The amount of electrical energy used by a device
is its rate of energy consumption in joules (W) per second. When appliances such as a toaster, hairdryers or irons need heat, they use resistors. By moving electricty through the resistors, the material naturally slows it down and causes the material to heat up. By Karina Schorr & Nate Vasquez
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