A power plant produces 1000 MW to supply a city 40 km away Current flows from the power plant on a single wire with resistance 50 m km, through the city, and returns via the ground, which has negligible resistance At the power plant the voltage between wire and ground is 115 kV Find (a) the current...

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A power plant produces 1000 MW to supply a city 40 km away. Current flows from the

Question:

A power plant produces 1000 MW to supply a city 40 km away. Current flows from the power plant on a single wire with resistance 50 mΩ/km, through the city, and returns via the ground, which has negligible resistance. At the power plant the voltage between wire and ground is 115 kV. Find
(a) the current in the wire
(b) the fraction of the power lost in transmission.

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