The Current
Primary Circuit
Current is a measure of the rate at which charge carriers flow. The standard unit is the ampere. This represents one coulomb (6,240,000,000,000,000,000) of charge carriers per second past a given point.
An ampere is a comparatively large amount of current. The abbreviation is (A). Often, current is specified in terms of milliamperes, abbreviated (mA), where 1 mA = 0.001A or a thousandth of an ampere.
You will also sometimes hear of microamperes (µA), where 1 µA = 0.000001 A = 0.001 mA, a millionth of an ampere. And it is increasingly common to hear about nanoamperes (nA), where 1 nA = 0. 001 µA = 0.000000001 A (a billionth of an ampere). Rarely will you hear of kilo amperes (kA), where 1 kA = 1000 A.
An ammeter measures current flow in amps. It is inserted into the path of current flow, or in series, in a circuit.
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Description
Define the term of Current in an Electrical circuit,Current is electrical flow moving through a wire.
Current is a measure of the rate at which charge carriers flow. The standard unit is the
ampere.
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