TThis book centres on the basic characteristics, analysis, design, and application aspects of conductors, insulators, semi-conductors, resistors, inductors, capacitors, basic network theorems, test and measuring meters, fabrication techniques, diodes, transistors, amplifiers and oscillators. The fundamental concepts of the subject are described in a clear and simple form for easy understanding. Several solved problems, objective-type questions and multiple-choice question with answers, exercise questions with solution manual and a large number of worked-out examples, along with the 27 experiments conducted for all the engineering and science students, are the highlights of the book. The entire content of the book is provided in a logical, orderly, and understandable manner.