Magnetic Fields, Induction, and Alternating Current (AC)

Do you want to understand the invisible forces that power modern technology, from simple electric motors to global power grids? Mastering the relationship between electricity and magnetism is the crucial first step. This course provides a comprehensive, text-based introduction to electromagnetism. You will move from static current effects to dynamic induction and the behavior of alternating current, building a solid conceptual and mathematical foundation for further study in physics and engineering. What you'll learn: * Understand the magnetic effects produced by steady electric currents using Ampere's Law and the Biot-Savart Law. * Apply Faraday's Law of Induction and Lenz's Law to predict and calculate induced electromotive force (EMF) and current flow. * Analyze the behavior of inductors, capacitors, and resistors in series and parallel AC circuits (RLC circuits). * Practice solving problems involving magnetic flux, mutual inductance, and self-inductance. * Master the concept of phase relationships and utilize phasor diagrams for effective AC circuit analysis. * Configure the fundamental operation principles of essential devices like transformers and simple AC generators. We begin with fundamental definitions and the mathematics of magnetic fields generated by current. We then progress through electromagnetic induction and finally cover the characteristics and analysis of single-phase AC circuits, focusing on conceptual clarity and written practice exercises. This course is designed exclusively for absolute beginners with no prior experience in electromagnetism or advanced physics. A basic understanding of algebra is helpful. Start reading today to unlock the power of electromagnetism.