Two 7970-V:230-V single-phase transformers with impedance with respect to their secondaries of 1.5 +j3 and 2 + j4.5 ohms are connected in parallel to a 7900-V source. Their secondaries are supplying a common load of 30+ j40 ohms. A. What is the magnitude of the voltage across the load in volts? (2 decimal places) B. What is the magnitude of the total current supplied by the 7900-V source in amperes? (3 decimal places) C. What is the efficiency of the parallel transformers combined in percent? (1 decimal place)

Two 7970-V:230-V single-phase transformers with impedance with respect to their secondaries of 1.5 +j3 and 2 + j4.5 ohms are connected in parallel to a 7900-V source. Their secondaries are supplying a common load of 30+ j40 ohms. A. What is the magnitude of the voltage across the load in volts? (2 decimal places) B. What is the magnitude of the total current supplied by the 7900-V source in amperes? (3 decimal places) C. What is the efficiency of the parallel transformers combined in percent? (1 decimal place)

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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