First published in 1959, this classic work has been used as a core text by hundreds of thousands of college and university students enrolled in introductory circuit analysis courses. Acclaimed for its clear, concise explanations of difficult concepts, its comprehensive problem sets andexercises, and its authoritative coverage, this new edition has been thoroughly revised and updated with the latest developments in the field. With an entirely new chapter on filters; extensive new coverage of AC and DC motors and generators; a wealth of new exercises, diagrams, and photos; and over150 Multisim circuit simulations on an accompanying CD, this ninth edition is the essential text for introducing electric circuits.