Fundamentals Of Electrical Engineering And Electronics

PREFACE TO THE TWENTY-EIGHTH EDITION
Time, he explained, is the prime factor Governing human advancement: The heart of measurement is time; Measurement is the blood of Science
- Cal Clothier in Knowledge is Power
t is a pleasure to present the twenty-eighth revised edition of this popular textbook which has been enthusiastically received by numerous teachers and students both in India and abroad. In the Electrical Engineering portion of the book, lot of fresh material has been added in the form of articles on Source Conversion, Swinburn's Test, Battery Charging from AC Source, Speed of Rotor Field in Three-phase Motors, Neutral Current in Unbalanced Star Connection and Balanced Y/A and A/Y connections.
In the Electronics portion of the book, following four new chapters have been added: Optoelectronic Devices, Digital Electronic Devices, Analog and Digital Communication and Electron Ballistics. Lot of new material concerning tungsten filament lamps, discharge lamps, sodium vapour lamps, starters and
stroboscopic effect has been added in the chapter on Illumination. There has been extensive pruning of the Solved Examples in the text. Majority of the old examples have been replaced by questions set in the latest examination papers of different engineering colleges and technical institutions. It is sincerely hoped that with these extensive additions and revisions,
the present edition will prove even more useful to my esteemed readers than
the earlier ones.
As ever before, I take this opportunity to thank my publishers particularly Sh. Ravinder Kumar Gupta for the personal interest he took in the printing of this book. I would also love to record my sincere appreciation for Ms. Shweta Bhardwaj for cheerfully rendering secretarial services in the preparation of this edition and to Mr. Cal Clothier, Lecturer, Leads Polytechnic, U.K. for borrowing a few beautiful lines from his famous poem "Knowledge is Power."