Q7 of 30 Page 1

Unit of electric power may also be expressed as:

(i) Volt Ampere is the unit of power in an electric circuit which is called apparent power which is the product of Root mean square(RMS) value of voltage and current.


(ii) Energy has a unit of Kilowatt which is means 1 kilowatt of power for an hour.


(iii) Watt second is also unit of energy which is equal to 1 watt of power for 1 second.


(iv) Joule-second is the unit of measure in classical mechanics for the angular momentum of a rotating object and for Planck's constant in quantum mechanics.

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