The Elementary Theory of Direct Current Dynamo Electric Machinery

First published in 1908, this book was originally intended to assist electrical engineers by explaining the fundamental principles behind all electric machinery. The text is illustrated with a number of diagrams to illustrate key points. This book will be of value to anyone with an interest in the history of science education.

1. Relations between electric currents and magnetic fields; 2. Essential parts of dynamo electric machines; 3. Behaviour of practical forms of machines; 4. Energy losses and efficiency; 5. Theory as to the exchanges of energy in armatures; 6. Types of armatures; 7. Characteristics of motors and dynamos; 8. The production and measurement of a magnetic field; 9. Reactions in the armature; Appendix; Examples; Index.