Question

1. Find out the relation b/w kilowatt – hour and joule.

Answer 1

The unit Joules is given in SI units while KWh is in derived units. Joule is represent in Wattseconds (W.s)

The relation between the two is as follows

1 KW = 1000W

1 hour = 3600 secs

so, 1 KWh = 1000X36000 W.s = 36,00,000 J