Book Description: Discover the fundamental direct current (DC) principles and applications, as well as the theories that underlie those principles - all in an effort to build a strong foundation in electrical technology! Written with the student electrician in mind, DC Theory, 3E uses a reader-friendly approach and begins with the basics of electricity and DC circuits, including how properties of materials are categorized within conductors, semiconductors, and insulators. Coverage gradually progresses to tackle more complex topics, like DC parallel circuits, DC combination circuits, magnetism and generators. With an emphasis on safety throughout, this book provides a valuable combination of both information and safe practice, providing students with the skills and knowledge necessary for future success in the electrical field. Check out our app, DEWALT Mobile Pro™. This free app is a construction calculator with integrated reference materials and access to hundreds of additional calculations as add-ons. To learn more, visit dewalt.com/mobilepro.