Suppose an electrical distribution line has a resistance of 1 ohm and needs to deliver 1 MW (megawatt) of electrical power. Is it more efficient to deliver that power at Vrms = 120 V or at Vrms 120 kV? Calculate the power wasted as heat in the distribution line to answer the question. (Hint: Actual distribution lines are high-voltage, so...)

Suppose an electrical distribution line has a resistance of 1 ohm and needs to deliver 1 MW (megawatt) of electrical power. Is it more efficient to deliver that power at Vrms = 120 V or at Vrms 120 kV? Calculate the power wasted as heat in the distribution line to answer the question. (Hint: Actual distribution lines are high-voltage, so...)

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 19P

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