INTRODUCTION TO ELECTRIC THEORY AND CIRCUIT FUNDAMENTALS

Welcome to Fundamentals of Electric Circuits Theory, a
comprehensive guide designed to provide a thorough understanding
of the essential principles and applications of electric circuits. This
book is crafted to support students, educators, and professionals in
the field of electrical engineering by offering a detailed exploration
of both theoretical concepts and practical applications.
The primary aim of this book is to offer a solid foundation in electric
circuit theory, which is crucial for anyone pursuing a career in
electrical engineering or related disciplines. Starting from the basic
concepts and gradually progressing to more complex topics, this
book ensures a structured learning experience.
Key features of this book include a structured learning path, with the
content organized into five major sections, each focusing on a
different aspect of electric circuits. The first section, Fundamentals
of Electric Circuits, introduces basic principles such as Ohm’s Law,
series and parallel connections, and Kirchhoff’s laws. The second
section, DC Circuit Analysis, delves deeper into direct current
circuits, covering methods like mesh and nodal analysis, and
exploring properties of linear circuits and controlled sources. The
third section, AC Circuit Analysis, focuses on alternating current
circuits, including the analysis of sinusoidal signals, impedance, and
power in AC circuits. The fourth section, AC Single and Three-Phase
Circuits, addresses the complexities of AC circuits in single and
three-phase systems, exploring power measurement and circuit
analysis techniques. The final section, Transform Analysis and
Transient Response, covers advanced topics such as Fourier and
Laplace transforms, transient response, and circuit analysis in the
frequency domain.

Each concept in this book is explained in detail with clear, step-by-
step procedures, making it easier for readers to follow and

understand the material. Real-world examples and practical
applications are provided to demonstrate how theoretical concepts
are applied in practical scenarios. To reinforce learning and provide
a quick reference for review, key points are summarized at the end
of each chapter.
This book is intended for undergraduate students in electrical
engineering but is also a valuable resource for graduate students and
practicing engineers who need a comprehensive reference on electric
circuits. Educators will find it a useful textbook for course
instruction, and self-learners can use it for independent study.
We extend our gratitude to the many individuals who contributed to
the creation of this book. Special thanks to the academic reviewers
and industry experts whose feedback has been invaluable. We also
appreciate the support of our families and colleagues, who
encouraged us throughout the writing process.
We hope that Fundamentals of Electric Circuits serves as a valuable
resource for your studies and professional development. Whether
you are just beginning your journey in electrical engineering or
seeking to deepen your knowledge, this book aims to provide the
clarity and insight needed to master the fundamentals of electric
circuits.