Question

what is electric power? name and define commercial unit of electrical energy? derive its relation with 1joule​

Answer 1

Electric power is the electric work done.
Commercial unit is Kilowatt hour.
When 1 joule of work is done in 1 hour then the electric work done is 1watthour

Answer 2

The rate of flow charge is called electric current

commercial unit of electrical energy is kilowatt-hour

if the power is taken in killowatt an time is taken in one hour than energy is called kWh