Question

state the relationship between comercial unit of energy and jule?

Answer 1

️1 commercial unit=3.6×10^6 joules.
proof:-
we know that
1kw= 1000W................(1)
1hr=60×60 sec............(2)
From eq (1) and (2), we get
1kw×1hr=1000W × 60×60 sec
1kwhr=3.6×10^6 proved.