Electrical Technology Fundamentals: Basic Laws and Single-Phase AC Circuits

Understanding electrical circuits and alternating current is the gateway to careers in engineering, power systems, and industrial automation. Many introductory guides jump straight into complex calculations without establishing the core physical laws, leaving learners confused. This course offers a clear, step-by-step pathway into electrical technology, focusing on the fundamental principles that govern modern electrical systems. You will transition from basic electrical concepts to confidently analyzing single-phase AC circuits. By studying the behavior of resistors, inductors, and capacitors, you will gain a practical and theoretical understanding of how electricity flows and how power is distributed. What you'll learn: - Understand foundational electrical terms, units of measurement, and basic safety principles - Apply Ohm's Law and Kirchhoff's Laws to analyze simple direct current and alternating current circuits - Analyze single-phase alternating current concepts, including frequency, amplitude, and phase relationships - Master phasor representation and complex numbers to solve AC circuit equations - Calculate active, reactive, and apparent power in single-phase systems - Practice evaluating power factor and understand the fundamentals of power factor correction The course begins with foundational definitions and basic DC circuit laws before introducing alternating current, impedance, and phasor diagrams. You will progress naturally through written explanations, practical formulas, and conceptual exercises designed to reinforce your learning. This course is designed for beginners, aspiring technicians, and engineering students looking for a solid introduction to electrical technology. No prior background in electronics or advanced calculus is required to start.