Basic Electrical Engineering_4e.p65

Designed to meet the syllabus of the first year course on ‘Basic Electrical
Engineering’ offered by JNTU, this book deals with the fundamentals of Electrical
Engineering. Starting with the electrical nature of matter, it goes on to cover the
following: production of voltages by different methods, characteristics of simple
electric circuits, electromagnetism and simple dc circuits. It also contains
fundamentals of alternating current theory, effects of inductance and capacitance
in ac circuits, and the behaviour of polyphase circuits. The application of general
theories of electricity studied above are used for explaining the functioning of
various electrical machines, such as dc generators, dc motors, single-phase
transformers, induction motors and synchronous machines. The last chapter deals
with measuring instruments.
A unique feature of this book is the numerous graded solved problems provided
in the book to enable the student to understand the theoretical principles better.
An inclusion of 125 additional solved problems is the major highlight of this
new edition. The book contains around 350 objective questions in addition to
numerous worked out problems in each chapter. Each chapter contains two types
of exercises: (i) questions for which the solutions have to be worked out by the
students themselves, and (ii) a set of multiple choice questions. Answers to these
questions are also provided. Solutions to May 2007 and 2008 question papers
(8 sets) are an important hallmark of this book. A dedicated website for this book
contains 2006 solved question papers and 200 additional objective questions.
We have taught the electrical engineering fundamentals course for over two
decades and this material has been continuously class-tested during this period.
Our students responded with great enthusiasm to the material and we hope that
the undergraduate engineering students as well as those doing their diploma would
find this book useful.
In an effort of this sort, we depend on the cooperation and courtesy of many
organisations and individuals. We gratefully acknowledge the encouragement
given by the Director, Indian Institute of Science, Bangalore, and the
Vice-Chancellor, Jawaharlal Nehru Technological University, Hyderabad. The
technical information derived from various publications have been appropriately
Further, our special thanks to the management of CVR college of Engineering,
Vastunagar, Mangalpalli (PO), Ibrahim-Patnam (mandal), R.R. (dt), AP, for
extending facilities and encouragement to bring out this useful book. We are very
much indebted to Mr K.Kiran Kumar for helping in the collection of quiz questions.
We are grateful to the following reviewers for their useful comments and
RVS Lakshmi Kumari
Department of Electrical and Electronics Engineering,
Vignan Institute of Information Technology, Vishakapatnam
K Vijay Kumar
Department of Electrical and Electronics Engineering,
Sri Sivani College of Engineering, Srikakulam
L Raju
Department of Electrical and Electronics Engineering,
G Narayanamma Institute of Technology and Science for Women, Hyderabad
P Lakshmi Supriya
Department of Electrical and Electronics Engineering,
Mahatma Gandhi Institute of Technology, Hyderabad
Vaman Nayak
Department of Electrical and Electronics Engineering,
Loyola Institute of Technology and Management, Guntur
Umapathy Reddy
Department of Electrical and Electronics Engineering,
Sree Vidyanikethan Engineering College, Nalgonda
V. Manohar
Department of Electrical Electronics Engineering,
Vignan Institute of Technology and Science, Nalgonda
Finally, we express our sincere thanks to Mrs Meena who helped in the typing
of the manuscript.
S Kamakshaiah
M S Naidu