This book provides an overview of the basics of electrical and electronic engineering that are required at the undergraduate level. Efforts have been taken to keep the complexity level of the subject to bare minimum so that the students of non-electrical/electronics can easily understand the basics. It offers an unparalleled exposure to the entire gamut of topics such as Electricity Fundamentals, Network Theory, Electro-magnetism, Electrical Machines, Transformers, Measuring Instruments, Power Systems, Semiconductor Devices, Digital Electronics and Integrated Circuits. The excellent response to the three editions of our book Basic Electrical Engineering has motivated us to bring out a book on Basic Electrical and Electronics Engineering that offers a panoramic purview of this popular fi rst-year engineering course. The main aim was to provide the complete material on basic topics in electrical and electronics engineering in one volume to students and teachers of all branches of engineering. The objective of this book, like our other books, is to give an exhaustive exposition of the fundamental concepts, techniques and devices in Electrical and Electronics Engineering. In attempting to do so, we have covered the basic concepts in Electric Circuit Theory, Electrical Machines, Electronics, Communication Engineering and Computers in a single volume.