A. 80.0W
B. 40.0W
C. 10.0W
D. 0.1W
Correct Answer:
Option A = 80.0W
Explanation
Power input = 3KW = 3000W
Voltage = 1.5KV = 1500V
Current (I) = P/V = 3000/1500 = 2Amps.
∴ Power loss in the cables = I²R
= 2 x 2 x 20
= 80W
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