Find the equivalent resistance between points a and b

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1. A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.25 ? 109Image for 1.A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, ea 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.

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

2108_power.png

2.Consider the following figure

(a) Find the equivalent resistance between points a and b in the figure. (R = 16.0 ?)

(b) Calculate the current in each resistor if a potential difference of 46.0 V is applied between points a and b.

I (4.00 Ω) = A
I (7.00 Ω) = A
I (16.0 Ω) = A
I (9.00 Ω) = A

Reference no: EM13973566

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