Tuesday, September 29, 2009

electric current

Electric current can mean, depending on the context, a flow of electric charge (a phenomenon) or the rate of flow of electric charge (a quantity).[1] The electric charge that flows is carried by, for example, mobile electrons in a conductor, ions in an electrolyte or both in a plasma.[2]
The SI unit for rate of flow of electric charge is the ampere. Electric current is measured using an ammeter

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