Electric Circuits provides thorough coverage of circuit analysis and circuit theory. It presents key concepts in a natural progression, helping you build on your knowledge steadily. Step-by-step analysis methods provide a solid foundation for you to develop your problem-solving skills. Over 1200 problems and nearly 200 examples introduce realistic engineering experiences that prepare you to develop the insights of a practicing engineer. 

The 12th Edition includes all new assessment problems with answers. Assessment problems give you a chance to reflect on the material and test how well you know key concepts. Completely updated end-of-chapter problems offer even more opportunities for you to problem solve and practice.

Table of Contents

Chapter 1 Circuit Variables

Chapter 2 Circuit Elements

Chapter 3 Simple Resistive Circuits

Chapter 4 Techniques of Circuit Analysis

Chapter 5 The Operational Amplifier

Chapter 6 Inductance, Capacitance, and Mutual Inductance

Chapter 7 Response of First-Order RL and RLC Circuits

Chapter 8 Natural and Step Responses of RLC Circuits

Chapter 9 Sinusoida I Steady-State Analysis

Chapter 10 Sinusoidal Steady-State Power Calculations

Chapter 11 Balanced Three-Phase Circuits

Chapter 12 Introduction to the Laplace Transform

Chapter 13 The Laplace Transform in Circuit Analysis

Chapter 14 Introduction to FrequencySelective Circuits

Chapter 15 Active Filter Circuits

Chapter 16 Fourier Series

Chapter 17 The Fourier Transform

Chapter 18 Two-Port Circuits

Appendix A The Solution of Linear Simultaneous Equations

Appendix B Complex Numbers

Appendix C More on Magnetically Coupled Coils and Ideal Transformers

Appendix D The Decibel

Appendix E Bode Diagrams

Appendix F An Abbreviated Table of Trigonometric Identities

Appendix G An Abbreviated Table of Integrals

Appendix H Common Standard Component Values

About our authors

We remember our beloved author, James W. Nilsson, for his lasting legacy to the electrical and computer engineering field. The first edition of Electric Circuits was published in 1983. As this book evolved over the years to better meet the needs of both students and their instructors, the underlying teaching methodologies Jim established remain relevant, even in the 12th Edition. Jim earned his bachelor's degree at the University of Iowa (1948), and his master's degree (1952) and Ph.D. (1958) at Iowa State University. He joined the ISU faculty in 1948 and taught electrical engineering there for 39 years. He became an IEEE fellow in 1990 and earned the prestigious IEEE Undergraduate Teaching Award in 1992.

Professor Susan A. Riedel, emerita, has been a member of the Department of Electrical and Computer Engineering at Marquette University since 1981. She retired in 2012 but continued to teach classes, advise undergraduates and work with graduate students on their research for several years after that. She also held a clinical research appointment in the Department of Orthopaedics at the Medical College of Wisconsin and was a visiting professor in the Bioengineering Unit at the University of Strathclyde, Glasgow, Scotland, as a Fulbright Scholar. She has received many awards for her teaching at Marquette, including the university-wide John P. Raynor SJ Faculty Award for teaching excellence. She has contributed to Electric Circuits since the Third Edition and became solely responsible for the text, supplements, and other supporting materials starting with the Sixth Edition.