An electric generator rated 12 kW 2 kV distribu... - WAEC Physics 2015 Question
An electric generator rated 12 kW, 2 kV distribute power through a cable of resistance 20\(\Omega\). Calculate the power loss in the cable.
A
120 w
B
360 w
C
720 w
D
2400 w
Ask EduPadi AI...
Correct Option: C
Power - IV
I = \(\frac{P}{V}\)
= \(\frac{12000}{2000}\)
I = 6A
Power loss = I\(^2\)R = 6\(^2\) x 20
= 720 W
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