39. (II) A power station delivers 620 kW of power at
Chapter 18, Problem 39(choose chapter or problem)
39. (II) A power station delivers 620 kW of power at 12.000 V to a factory through wires with total resistance 3.011. How much less power is wasted if the electricity is delivered at 50.000 V rather than 12,000 V?
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