Electric Power
Key Questions
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First of all, kilowatt-hour od kilowatt hour has many symbols: kW·h, kW h or kWh. It is a unit of energy equal to 1,000 watt-hours, or 3.6 megajoules.
Very simple:
If the energy is being transmitted or used at a constant power over a period of time, the total energy in kilowatt-hours is the product of the power in kilowatts and the time in hours.It is commonly used as a billing unit for energy delivered to consumers by electric utilities.
Deevona
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Apr 14 2014
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chandramohanPanakkal
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2
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Jun 7 2018
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We know that electric power dissipated as a result of Joule's effect is given by,
#P = I^2Rt# , thus in order to minimize the power loss, the current is supplied under very high voltage and as a consequence of law of conservation of energy, the current is reduced and substantially heat loss is also reduced.
Aritra G.
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1
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Jun 4 2015
