'''Power''' is the ability or authority to take effective action or exercise control. Thus in a deliberative body such as Congress, the faction able to assemble a majority bloc of votes is the faction in power. Putting three aircraft carriers into the North Arabian Sea is an example of the projection of military power.
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In [[physics]], [[Power (Physics)|power]] is the rate of [[work]] done per unit [[time]]. Power can be expressed in [[Watt]]s
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In [[electricity]], power is the product of [[voltage]] and [[current]]. This is also expressed in [[Watt]]s.
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In [[mathematics]], a power of a number is the result of [[exponentiation]] - multiplying a number by itself a specified number of times.