Question

While calculating the electricity bill.The unit used is Kilo Watt hour. Is it a unit of energy or unit of power?explain

Answer 1

kilowatt hour is a unit of energy because the simplest unit of energy is joule which is watt second bigger form of this is kilowatt hour. 1 kilowatt hour is the energy consumed buy an appliance of 1kW raring in 1 hour

Answer 2

Hi.

The commercial unit of energy is kWH. It is also simply called a unit ot BOTU.

Since Power = Energy/Time, SI unit of Power is J/s or Watt (W). A larger unit equal to 1000 W is Kilo Watt (kW). For time, a larger unit of 3600 s or one hour is used.

Thus, energy = Power*time. SI unit of energy is J/s * s = J. A larger unit is kW*H = kWH.

Thus, kWH is a unit of ENERGY.

Hope it helps.