Multiple choice questions: 1- A voltages of 50Hz transformer are 1500 V on primary and 600 V on the secondary. It has 1.5 V per turn. Then the number of turns on primary and secondary are a) 20 and 8 b) 100 and 10 c) 1000 and 120 d)1000 and 400 e) none of the previous. 2-A 600/200 V single phase transformer is supplying a load of 60 A at a p.f of 0.707 lag. The no load current is 3A at 0.2 P.f. lag. Then the primary current is a) 63A b) 22.56A c) 69A d)24 e) 21.55 f) none of the previous. 3- The silicon ratio in transformer iron cannot be increased greater than 5% because of a) the iron loss will increase b) the hysteresis loss will increase c) the eddy current loss will increase d) none of the previous ICVI =400Y and the wattmeter read 800W at no load test then the value of Ro is

Multiple choice questions: 1- A voltages of 50Hz transformer are 1500 V on primary and 600 V on the secondary. It has 1.5 V per turn. Then the number of turns on primary and secondary are a) 20 and 8 b) 100 and 10 c) 1000 and 120 d)1000 and 400 e) none of the previous. 2-A 600/200 V single phase transformer is supplying a load of 60 A at a p.f of 0.707 lag. The no load current is 3A at 0.2 P.f. lag. Then the primary current is a) 63A b) 22.56A c) 69A d)24 e) 21.55 f) none of the previous. 3- The silicon ratio in transformer iron cannot be increased greater than 5% because of a) the iron loss will increase b) the hysteresis loss will increase c) the eddy current loss will increase d) none of the previous ICVI =400Y and the wattmeter read 800W at no load test then the value of Ro is

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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