state the relation between the commercial and SI unit of electrical energy.
The SI unit of energy is Joules and the commercial unit of electric energy is kWh.
1 kWh = 1000 W × 1 hour
= 1000 W × 3600 s
= 36 × 105 Ws
= 3.6 × 106 J
Name the commercial unit of electrical Energy. How it is related to its SI unit?
Commercial unit of energy and its SI unit
ofof electrical energy