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Physics Formulas > Electricity (Basic) > Electric Power

Electric Power

The electric power is given by:

P = V · I

Where V is the voltage and I is the current.

Corresponding units:
watt(W) = volt (V) · ampere (A)

The power can also be determined by using the following formulas:

P = I2 · R     R = P / I2     I = √(P / R)

P = V2/R     R = V2/ P     V = √(P · R)

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