Question

Define 1 kilowatt hour. 

Answer 1

Kilowatt hour 

1 Kilowatt hour is the energy consumed when 1 kilowatt of power is used for 1 hour 

1 kwh = `1000   "watt" xx 36000   "second"`

 = `3.6 xx 10^6` watt second

 = `3.6 xx 10^6`  Joule (J)