A High-Voltage Powerline Operates at 500,000 V Rms and Carries

question 32

Multiple Choice

A high-voltage powerline operates at 500,000 V rms and carries an rms current of 500 A. If the resistance of the cable is 0.050 Ω/km, what is the resistive power loss in 200 km of the powerline?

• A)250 kW
• B)500 kW
• C)1 megawatt
• D)2.5 megawatts
• E)250 megawatts

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A leading edge of a cooler mass of air, replacing at ground level a warmer mass of air, which can bring about significant changes in weather.

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High Levels of Pollutants

Concentrations of harmful substances in the environment that exceed accepted safety standards, posing health risks.