What is the total electrical energy consumed by... - JAMB Physics 1997 Question
What is the total electrical energy consumed by using an electric cooker rated 1000W for 5 hrs?
A
5.3 x 103J
B
6.5 X 103J
C
1.8 X 107J
D
2.3 X 107J
correct option: c
Energy = power x time
= 1000 x 5 x 3600
= 1.8 X 107J
= 1000 x 5 x 3600
= 1.8 X 107J
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