Question

The electricity supplied in Exercise 34 is transmitted over a line 80.0 km long with a resistance of 0.80 Ω /km.
(a) How many kilowatt-hours are saved in 5.00 h by stepping up the voltage?
(b) At $0.15/kWh, how much of a savings (to the nearest $ 10) is this to all the consumers the line supplies in a 30-day month, assuming that the energy is supplied continuously?


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  • CreatedAugust 29, 2015
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