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Which one of the following is the practical unit of power?

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in Physics – Class 12 by (135k points)
Which one of the following is the practical unit of power?

(a) Watt (W)

(b) Kilowatt hour (kWh)

(c) Horse power (hp)

(d) Kilojoule (kJ)

I got this question in class test.

Question is from Current Electricity in portion Current Electricity of Physics – Class 12

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Best answer
Right choice is (c) Horse power (hp)

Best explanation: The practical unit of power is horse power (hp). Kilo watt is also another practical unit of power. 1 kilowatt = 1000 watt; 1 hp = 746 watt. It is usually used in reference to the output of engines or motors.

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