Created by StemPy LabWhy is electric power sent over long distances at a very high voltage?
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← A student says: a step-up transformer has ten times as many turns in its secondary as in its primary, so it gives ten times as much power as it takes. What is wrong with this?A cable of total resistance 6 Ω is fed with 36 kW at 4 kV. The power factor is 1. How much of the power is lost as heat in the cable? →
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