Hawkins Electrical Guide v. 02 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications

"Hawkins Electrical Guide v. 02 (of 10)" by N. (Nehemiah) Hawkins is an early twentieth-century educational work that acts as a detailed course on electricity, designed for engineers, electricians, students, and other individuals seeking to understand the field. The book uses a question-and-answer format combined with illustrations to explain complex electrical concepts, specifically focusing on the armature of a dynamo and its critical role in inducing electric currents through wire coils. The guide examines the different types of armatures, such as ring, drum, and disc, and introduces the commutator along with its uses, establishing the basics to understand the mechanics and properties of electrical machines in later sections.