Knowledge of fundamentals is critical to the success of a modern electrical technician, and this book explores direct current (DC) principles and methods as well as the underlying theories and concepts needed for a strong foundation in electrical technology. Readers are introduced to the fundamentals of electricity and DC circuits, including how properties of materials are categorized into conductors, semiconductors, and insulators. In-depth coverage of Ohm's law and its relation to voltage, current, resistance, and power is presented, followed by the theory and practical applications of electrical components connected in series. Later chapters examine DC parallel circuits, DC combination circuits, magnetism and generators, and DC circuit analysis tools that electricians will find invaluable in analyzing and understanding more complex circuits likely to be encountered on the job. Although based on DC circuits, the information supplied in this book will apply to alternating current (AC) circuits as well. This book contains much of the material that forms the foundation of electrical knowledge.
NJATC develops and standardizes training for National Electrical Contractors Association and the International Brotherhood of Electrical Workers, which represents more than 780,000 memebers working in a wide variety of fields around North America.
Part 1 - Fundamentals of Electricity and DC Circuits. Sources and Effects of Electricity-The Electron Theory. Mathematical Concepts for Solving Electrical Problems. Using Ohm's Law and Associated Electrical Units. The Properties of Power in an Electrical Circuit.
Part 2 - DC Series Circuits. Understanding and Calculating Resistance in a DC Series Circuit. How Current Reacts in a DC Circuit. How Voltage Functions in a DC Series Circuit. How Voltage Dividers Work in a DC Series Circuit. How to Calculate Power in a DC Series Circuit.
Part 3 - DC Parallel Circuits. How Voltage Functions in a DC Parallel Circuit. Understanding Resistance in a DC Parallel Circuit. How Current Reacts in a DC Parallel Circuit. How Current Dividers Work in a DC Parallel Circuit. How to Calculate Power in a DC Parallel Circuit.
Part 4 - DC Combination Circuits. Understanding Resistance in Combination Circuits. How current reacts in a DC Combination Circuit. How Voltage Functions in DC Combination Circuits. How to Calculate Power in DC Combination Circuits.
Part 5 - Magnetism and Generators. Understanding the Principles of Magnetism and Electromagnetism. How Electrical Generators Work.
Part 6 - DC Circuit Analysis Tools. Understanding Voltage Polarity and Voltage Drop. Applying the Principle of Superposition. Using Kirchhoff's Laws to Solve DC Circuits. Thevenin's and Norton's Theorems.