A power transmission line is hung from metal towers with glass insulators having a resistance of 4.90 ✕ 109 Ω. What current (in mA) flows through the insulator if the voltage is 320 kV? (Some high-voltage lines are DC.)

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
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A power transmission line is hung from metal towers with glass insulators having a resistance of 4.90 ✕ 109 Ω. What current (in mA) flows through the insulator if the voltage is 320 kV? (Some high-voltage lines are DC.)

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