What is the formula for the commercial unit of energy?
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Basically the commercial unit of energy is Kilowaat Hour i.e (KWH).It cannot be expressed in terms of joule since it is a small unit. Therefore to express it we use a large value i.e Kilowaat Hour to express energy
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The SI unit joule is too small to express very large quantities of energy. Hence we use a bigger unit called kilowatt hour (kWh) to express energy. 1 kWh is the amount of energy consumed by an electrical gadget in one hour at the rate of 1000 J/s or 1kW. The commercial unit of energy is kWh(kilo watt hour).
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