This fundamental alternating current (AC) theory book, now in its second edition, offers a user-friendly approach and practical examples to keep industry professionals up-to-date. Designed to provide a thorough introduction to AC theory from its production, to its uses and circuitry; AC Theory, 2E uses the basics of direct current theory to explain the various facets of AC theory. The book begins by covering the primary components of AC circuits, such as resistors, inductors, and capacitors. The chapters that follow build upon the basic principles learned in these chapters, gradually introducing increasingly complex topics such as applying AC principles in power generation and generators, parallel and combination circuits, and more. With updated sidebars that provide a real-world context for the topics covered, users will develop strong connections between theory and applications, preparing them for work in the electrical field.