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.