AC Electromagnetic Theory

AC electromagnetic theory describes how alternating current (AC) creates changing electric and magnetic fields that propagate through space as electromagnetic waves. When AC flows through a conductor, it produces a time-varying electric field, which in turn generates a magnetic field. These fields continually regenerate each other, allowing energy to transfer wirelessly over distances. This principle underpins technologies like radio, TV, and wireless communication. Essentially, AC electromagnetic theory explains how oscillating electrical signals are converted into electromagnetic waves that travel through the environment, enabling the transmission and reception of information without direct contact.