- Electric power is the electrical work done per unit time. In other words, it is the rate at which work is done in an electric circuit.
- Electric power is represented as :

$Power=\frac{Workdone}{Tiimetaken}$

$OrP=\frac{W}{t}$

- Electric power is the electrical work done per unit time. In other words, it is the rate at which work is done in an electric circuit.
- Electric power is represented as :

$Power=\frac{Workdone}{Tiimetaken}$

$OrP=\frac{W}{t}$

The SI unit of electric power is Watt which is denoted by the letter W.

The power of 1 watt is a rate of working of 1 joule per second. That is,

$1watt=\frac{joule}{1second}$

$P=V\times I$

Also, P is related to Q (electric charge) as:

$P=\frac{VQ}{t}$

where, Q is the charge (in Coulombs)

Relation between kilowatt-hour and joule: 1 kilowatt-hour = 1000 watts for 1 hour

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