.Calculate the power loss in an electrical transmission cable, 15 km long, carrying a current of 100A at a potential of 200 kV. The resistance per km of the cable is 0.2 Ω.

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Solution

Power loss = I^2 x R

R = 15 x 0.2 = 3 ohms

P = 100^2 x 3 = 3 x 10^4 Watts = 30 kW

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.Calculate the power loss in an electrical transmission cable, 15 km long, carrying a current of 100A at a potential of 200 kV. The resistance per km of the cable is 0.2 Ω.

Power loss = I^2 x R R = 15 x 0.2 = 3 ohms P = 100^2 x 3 = 3 x 10^4 Watts = 30 kW

Power loss = I^2 x R

R = 15 x 0.2 = 3 ohms

P = 100^2 x 3 = 3 x 10^4 Watts = 30 kW