Written by education professionals to the specifications provided by NJATCs industry experts, each book in this series is carefully written to build knowledge through a wealth of illustrations, real-world situations, and step-by-step examples and procedures. NJATC-affiliated programs have trained over 30,000 electrical workers, and safety is always emphasized throughout all training materials. This series reflects the experience gained from this tremendous effort. In this volume you will find these outstanding features: in-depth coverage of Ohm's law and its relation to voltage, current, resistance, and power; algebraic operations with step-by-step breakdowns; new sidebars offering additional information on safety, troubleshooting, and real-world applications related to the chapter material; easy to follow explanations of circuit diagrams better illustrate the concepts being discussed; and comprehensive running glossaries that allow users to quickly and easily locate definitions and key terms.