Electrical circuits is one of the important core subjects in Electrical Engineering. It is equally important for other branches like ECE, CSE and Mechanical Engineering. A good foundation in this subject will help to grasp the other subjects. Some mechanical problems can be reduced into electrical circuits on analogy basis. Practical problems involving Electric and magnetic field can be reduced into electrical network by modeling the former one.In this book attempts have been made to present the course in simple way so that an average student can follow without much help from teacher.