Principles of Electromagnetic Induction and Alternating Current

How do power plants generate electricity, and how does that energy travel safely to our homes? Understanding the relationship between magnetism and electricity is the foundation of modern electrical engineering and classical physics. This text-based course guides you from absolute basics to a solid conceptual understanding of electromagnetic induction and alternating current (AC). You will explore the theoretical foundations, learn how to calculate key electrical properties, and see how these principles apply to modern technologies like transformers and wireless charging. What you'll learn: • Understand the core terminology of magnetic flux, electromagnetic induction, and self-induction. • Apply Faraday's laws and Lenz's law to determine the direction and magnitude of induced electromotive force. • Analyze alternating current waveforms, including peak values, RMS values, and phase relationships. • Solve fundamental AC circuit problems involving resistors, inductors, and capacitors. • Explore the working principles of modern electrical devices, such as transformers and AC generators. • Practice step-by-step physics calculations through written exercises designed to build exam-ready confidence. The course begins with foundational definitions of magnetic fields and flux, then builds up to induction laws, before transitioning into alternating current behavior and practical circuit analysis. This course is designed for physics students, aspiring engineers, and curious beginners looking for a clear, written guide to electromagnetism with no advanced prerequisites required. Start reading today to demystify the invisible forces that power our modern world.