Problem 24.58 Part A You\'re working on a new high-speed rail system. It uses 60

Question

Problem 24.58 Part A You're working on a new high-speed rail system. It uses 6000-horsepower electric locomotives, getting power from a single overhead wire with resistance 15 m/km, at 30 kV potential relative to the track. Current returns through the track, whose resistance is negligible. Energy-efficiency standards call for no more than 3% power loss in the wire How far from the power plant can the train go and still meet this standard? Express your answer using two significant figures 4.5. 10 km Submit My Answers Give Up Incorrect; Try Again; 3 attempts remaining Provide Feedback Continue

Explanation / Answer

P= 4413 KWatt = V2/R

R=203.942 ohm

3% of this =6.1182 ohm

distance = 6.1182/.015 =407.885 km

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