This book provides an understandable and effective introduction to the fundamentals of DC/AC circuits. It covers current, voltage, power, resistors, capacitors, inductors, impedance, admittance, dependent/independent sources, the basic circuit laws/rules (Ohm's law, KVL/KCL, voltage/current divider rules), series/parallel and wye/delta circuits, methods of DC/AC analysis (branch current and mesh/mode analysis), the network theorems (superstition, Thevenin's/Norton's theorems, maximum power transfer, Millman's and substitution theorems), transient analysis, RLC circuits and resonance, mutual inductance, transformers, and more.

This book presents material in a clear and easy-to-understand manner. All important concepts, rules and formulas are highlighted after the explanation and are also summarised at the end of each chapter, making it easy to locate important facts and to study more effectively. The laboratory experiments at the end of each chapter are convenient for doing hands-on practice. These will motivate readers to master the circuit theory, especially college or university students or self-learners in this field.

Basic concepts of electric circuits
Basic laws of electric circuits
Series- parallel resistive circuits
Methods of DC circuit analysis
The network theorems
Capacitors and inductors
Transient analysis of circuits (first-order circuits)
Fundamentals of AC circuits
Methods of AC circuit analysis
RLC circuits and resonance
Mutual inductance and transformers
Circuits with dependent sources
Appendices