The purpose of writing this book is mainly for those students who are preparing for various engineering and competitive examinations like GATE PSUs, etc. This book will provide a good collections of materials written in simple manner and easy to understand. This book is divided in three parts:(i) First part is for Basic theory, (ii) Second part consist of conceptual questions with their solutions and (iii) Third part is collection of multiple choices question with their solution. So overall this book is very useful and important for all aspirants.
