Q24 of 36 Page 120

Calculate the joules in 1-kilowatt hour.

1 Joule = 1 Watt second, but we have to calculate the number of Joules in 1 kWh = 1 kilo Watt hour =

3600 kilo Watt second = 3600000 Watt second,


Therefore there are 3600000 Joules in 1 kWh.


Always remember kWh is the unit of energy.


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