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Formulas for power

Power (P) is work( W) done in unit time (t).

P = W/t

as work and energy (E) are same it follows power is also energy consumed or generated per unit time.

P = E/t

In measuring power Horsepower is a unit which is in common use. However in physics we use Watt. So the first thing to do in solving any problem related to power is to convert horsepower to Watts. 1 horsepower (hp) = 746 Watts

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