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Use a A-to-Y transformation in finding the currents I . 1, and /y for the circuit shown in Fig. 5-34. The A of 15-0 resistors transforms to a Y of 15,3 = 5-N resistors that are in parallel with the Y of 20-N resistors. It is not obvious that they are in parallel, and in fact they would not be if the resistances for cach Y were not all the same value. When, as here, they are the same value, an analysis would show that the middle nodes are at the same potential, just as if a wire were connected between them. So. corresponding

Use a A-to-Y transformation in finding the currents I . 1, and /y for the circuit shown in Fig. 5-34. The A of 15-0 resistors transforms to a Y of 15,3 = 5-N resistors that are in parallel with the Y of 20-N resistors. It is not obvious that they are in parallel, and in fact they would not be if the resistances for cach Y were not all the same value. When, as here, they are the same value, an analysis would show that the middle nodes are at the same potential, just as if a wire were connected between them. So. corresponding

Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter18: Resistive-inductive Parallel Circuits
Section: Chapter Questions
Problem 12PP: In an R-L parallel circuit, ET=480 volts, R=16, and XL=24. Find PF.
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Use a A-to-Y transformation in finding the currents l,.1, and /, for the circuit shown in Fig. S-34. The A of 15-0 resistors transforms to a Y of 15/3 = 5-N resistors that are in parallel with the Y of 20-N resistors. It is not obvious that they are in parallel, and in fact they would not be if the resistances for each Y were not all the same value. When, as here, they are the same value, an analysis would show that the middle nodes are at the same potential, just as if a wire were connected between them. So, corresponding 15 N 30 V 20 N 15 A 20 n 40 V IS A
Transcribed Image Text:Use a A-to-Y transformation in finding the currents l,.1, and /, for the circuit shown in Fig. S-34. The A of 15-0 resistors transforms to a Y of 15/3 = 5-N resistors that are in parallel with the Y of 20-N resistors. It is not obvious that they are in parallel, and in fact they would not be if the resistances for each Y were not all the same value. When, as here, they are the same value, an analysis would show that the middle nodes are at the same potential, just as if a wire were connected between them. So, corresponding 15 N 30 V 20 N 15 A 20 n 40 V IS A
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