Question

I'n
an electric heat 500w is written

Answer 1

Explanation:

Time of witch the hearter is used t = 10

hours 10 × 3600s= 36000s

Energy Consmund for the heater E=P×t

where P is the power of the heater

therefore: E = (1500) W×36000s

=E=5.4 × 7 j

10

E = 15 k Wh

(therefore 1k Wh= 3.6×10 j