Question

write the relation of watt with kilowatt, megawatt, and horse power
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Answer 1

Kilo-something = 10³×something. Symbol: k

Mega-something = 10⁶×something. Symbol: M

1kW=10³W, or 1W=10^(-3) kW

1MW=10⁶W, or 1W=10^(-6) MW

1 horsepower (HP) is *defined* as the necessary power to lift a mass of 75kg, at the height of 1m, in 1 second.

Mass: m=75kg

Weight: G=mg=75×9.81=736N

Energy: G×h=736N×1m=736J

Power: energy / 1second = 736W

This power is 1HP.

So: 1HP=736W