GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Kilowatt - hour is a unit of
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Power
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Current
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Energy
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Electric charge
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Explanation:
Detailed explanation-1: -The kilowatt-hour k w h is a unit of energy and is equal to one thousand watt-hours. If the energy is being transferred or used at a constant rate (power) over a definite period of time, the total energy in kilowatt-hours is the product of the power in kilowatts and the time in hours.
Detailed explanation-2: -The SI unit of power is Watt (W) which is joules per second (J/s). Sometimes the power of motor vehicles and other machines is given in terms of Horsepower (hp), which is approximately equal to 745.7 watts.
Detailed explanation-3: -The kilowatt-hour (symbolized kWh) is a unit of energy equivalent to one kilowatt (1 kW) of power expended for one hour (1 h) of time. 1 kWh = One thousand watt hours.
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