Electromagnetics is the branch of physics that studies the interactions between electric fields and magnetic fields. It explains how electric charges create electric fields, and how moving charges generate magnetic fields. This field of study is essential for understanding various technologies, including electric motors, transformers, and wireless communication. The fundamental principles of electromagnetics are described by Maxwell's equations, which unify electricity and magnetism into a single theory. These equations help predict how electromagnetic waves, such as radio waves and light, propagate through space. Electromagnetics plays a crucial role in many modern applications, from radar systems to medical imaging.