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A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.20 multiplied by 109 resistance. (For the questions below, explicitly show on paper how you follow the steps in the Problem-Solving Strategy for series and parallel resistors found on pages 511-2. Your instructor may ask you to turn in this work.)

(a) What is the resistance to ground of 100 of these insulators?

(b) Calculate the power dissipated by 100 of them.

W

(c) What fraction of the power carried by the line is this?

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