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Question
Power P is to be delivered to a device via transmission cables having resistance RC. If V is the voltage across R and I the current through it, find the power wasted and how can it be reduced.
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Solution
Power wasted PC = I2RC
Where RC is the resistance of the connecting wires.
`P_C = P^2/V^2 R_c`
In order to reduce PC, power should be transmitted at high voltage.
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