A textbook of electrical technology: volume 2 ac and dc machines elaborately covers the topics, ac and dc machines, which is a part of electrical technology. Electrical technology, as a subject, covers various divisions of electrical engineering like basic electrical engineering, electronics, control systems, instrumentation and communication systems. The book discusses and explains various theories related to ac and dc machines. The chapters consist of various exercises, examples, and multiple illustrations that aid in understanding the subject better. This book is suitable for students, and has been written in simple language. Various solved examples help in simplifying the subject matter, and the illustrations make it visually more engaging to students. The topics covered in the book range from dc generators and dc motors to alternators and synchronous motors. Special importance has been laid on chapters discussing motors. The objective test section has also been carefully revised t