electromagnetic induction

A generating station is producing 1.2*10^6 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of 5.0*10^-2 ohms/km. a) find the power used to heat the wire if the power is transmitted at 1200V. b) a 100: 1 step-up transformer is used to raise the voltage before the power is transmitted. how much power is now used to heat the wires?; A generating station is producing 1.2*10^6 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of 5.0*10^-2 ohms/km. a) find the power used to heat the wire if the power is transmitted at 1200V. b) a 100: 1 step-up transformer is used to raise the voltage before the power is transmitted. how much power is now used to heat the wires?

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