Complete, accessible introduction to DC/AC circuits: Principles of Electric Circuits: Conventional Current Version, 10th Edition, by Floyd Thomas, offers a uniquely clear introduction to fundamental circuit laws and components, using math only when needed for understanding. The acclaimed coverage of troubleshooting in this text—combined with exercises, examples, and illustrations—provides students with the problem-solving experience they need to step out of the classroom and into a job. This 10th edition has been heavily modified to improve readability and clarity while updating the text to reflect developments in technology since the previous edition. New step-by-step procedures for solving problems with the TI-84 Plus CE graphing calculator have also been added.