Direct Current Fundamentals

The Direct Current Fundamentals has served for decades as a trusted guide for learners and practitioners of direct‑current (DC) electrical systems and magnetism. The most recent editions present material in a student‑friendly, accessible format while retaining the depth needed for serious study. Starting from the most basic concepts—atoms, electrons, current, voltage, resistance—the text builds steadily through circuit analysis techniques (series, parallel, series‑parallel), batteries, magnetism, DC motors and generators, and solid‑state control of DC systems. It emphasizes both theoretical foundations and practical applications: how to interpret circuit behaviour, apply Ohm’s Law, use Kirchhoff’s Laws, analyze networks, understand DC motor control, and appreciate how DC systems differ from AC systems. Visual enhancements—including updated photographs, diagrams, and call‑out icons highlighting “green” energy‑efficiency practices—aid comprehension, especially for learners entering the electrical trade or preparing for certification. With a logical structure, reviewed examples, achievement reviews at the end of chapters, and a grounding in industry‑relevant tools and standards, this book bridges the gap between classroom theory and real‑world electrical work.

Key aspects:

• Fundamental DC Theory – Introduces basic concepts: electrons, current, voltage, and resistance.
• Circuit Analysis Techniques – Covers series, parallel, and series-parallel circuits, including practical problem-solving strategies.
• Ohm’s and Kirchhoff’s Laws – Explains application of foundational electrical laws in DC circuits.
• DC Machines – Discusses DC motors and generators, their operation, and basic control methods.
• Magnetism & Electromagnetism – Covers the magnetic effects of current and their applications in DC systems.
• Practical Applications – Emphasizes real-world examples, troubleshooting, and hands-on exercises.
• Energy Efficiency Considerations – Highlights “green” electrical practices and efficiency measures.
• Student-Friendly Learning Tools – Uses diagrams, photographs, callouts, and end-of-chapter reviews to reinforce learning.

Highlights:

• Clear, progressive learning structure, starting with fundamentals and advancing to complex DC systems.
• Integrates theory with practical applications, bridging classroom and real-world electrical work.
• Visual aids and examples enhance comprehension of abstract concepts.
• Worked examples demonstrate problem-solving in circuits and DC devices.
• Suitable for students, apprentices, and professionals entering the electrical trade or preparing for certification.

About Stephen L. Herman

Stephen L. Herman is an experienced educator and author specializing in electrical engineering and electrical trade education. He has written extensively on electrical systems, with a focus on practical applications, troubleshooting, and foundational theory in direct current (DC) and alternating current (AC) systems. Herman’s textbooks are widely used in technical schools, apprenticeship programs, and professional training courses to teach electrical principles in a clear, accessible, and hands-on manner. His work emphasizes bridging the gap between classroom theory and real-world electrical practice, making complex concepts approachable for both students and professionals.

Other Works:

• Delmar’s Standard Textbook of Electricity 7th Edition
•  Delmar’s Standard Textbook of Electricity 8th Edition