Definition[edit | edit source]

An electromagnetic wave is formed when an electric field couples with a magnetic field. The magnetic and electric fields of an electromagnetic wave are perpendicular to each other and to the direction of the wave.

Overview[edit | edit source]

Electromagnetic waves transport energy and, unlike ocean waves, can travel through space without the need for wires or a physical medium. They include not only radio waves, but also infrared light, visible light, and X-rays, among others. The type of wave, along with its properties, depends on the frequency at which it oscillates.

Source[edit | edit source]

Community content is available under CC-BY-SA unless otherwise noted.