Q2: Choose TRUE or FULSE: 1-The series filed of a short- shunt de generator is excited by armature current. 2- The developed power in DC generator amature in mechanical power. 3- The 1- phase transformer is costly than 3- phase transformer. 4- The series de generators are rarely due to low overall efficiency. 5-The armature coils has cross section greater than field coils in DC shunt generators. 6- The speed of DC machines inversely proportional to number of poles. 7-Short circuit test used to determine core loss of transformers. 8- Maximum efficiency can be obtained when copper loss equal to constant loss. 9- If the field current circuit of DC shunt generator is opened, there will no induced voltage in armature winding. 10-If the transformation ratio greater than 1, the transformer called step-up transformer.

Q2: Choose TRUE or FULSE: 1-The series filed of a short- shunt de generator is excited by armature current. 2- The developed power in DC generator amature in mechanical power. 3- The 1- phase transformer is costly than 3- phase transformer. 4- The series de generators are rarely due to low overall efficiency. 5-The armature coils has cross section greater than field coils in DC shunt generators. 6- The speed of DC machines inversely proportional to number of poles. 7-Short circuit test used to determine core loss of transformers. 8- Maximum efficiency can be obtained when copper loss equal to constant loss. 9- If the field current circuit of DC shunt generator is opened, there will no induced voltage in armature winding. 10-If the transformation ratio greater than 1, the transformer called step-up transformer.

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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