Author: V.K. Mehta
“Principles of Electronics” by V. K. Mehta (co‑authored by Rohit Mehta) is a comprehensive textbook aimed at undergraduate engineering students, especially those in B.Tech, B.E., B.Sc., AMIE and diploma courses. The book begins with the foundational topics like atomic structure and electron emission, building up the reader’s understanding of how modern electronic devices work. It then moves into the physics of vacuum tubes and gas‑filled tubes before introducing semiconductor physics, diodes and transistors in a rigorous yet accessible manner. The chapters on transistor biasing, single‑stage and multi‑stage amplifiers walk students through how real amplifier circuits are designed and analysed. Later sections cover important areas such as sinusoidal oscillators, regulated DC power supplies, solid‑state switching circuits and power electronics, showing how theory connects with practical circuit design. The text also includes chapters on field‑effect transistors, silicon‑controlled rectifiers, electronic instruments, integrated circuits, hybrid parameters and digital electronics, ensuring wide coverage of both analog and digital domains. One of the striking features of the book is its large number of illustrative figures, tables and worked examples which help clarify complex ideas and support problem‑solving. With thousands of end‑of‑chapter exercises in multiple formats, the book encourages students to test their understanding and apply what they have learned in practice. While the notation and style are tailored for the Indian engineering curriculum, the clarity of presentation and breadth of topics make it relevant globally for electronics education. Overall, “Principles of Electronics” is much more than a theory text—it serves as a bridge between basic principles and real‑world electronic engineering practice.