Question

What is relationship between the commercial unit and SI unit of an energy.

Answer 1

The commercial unit of energy is Kilowatt-hour(KWh) The relationship between SI unit and commercial unit is: 1 KWh=3.6*106J (or 3600000 J) One Kilowatt-hour is: 1kWh = 1kW * 1h. And the definition for kWh is: 1kWh is the electric energy consumed by an appliance of power 1 when it is used for one hour.

Answer 2

= 1 kWh

= 1kWh × 1 hour

= 1000 W × 3600 second

= 1000 js^-1 × 3600 second

= 3600000 J

= 3.6 * 10^6 Joule