You’re Chief Financial Officer for a power company, and you consult your engineering department in an effort to minimize power-line losses. Your power plant produces 60-Hz power at 365 kV rms and 200 A rms, and delivers it via transmission lines with total resistance 100 Ω. You ask the engineers for the percentage of power that’s lost. They reply that it depends on the power factor. What’s the percentage loss for power factors of (a) 1.0 and (b) 0.60?
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