What is the relationship between the electric and magnetic fields of an electromagnetic wave?

Electromagnetic waves, such as radio waves, consist of two oscillating components: an electric field and a magnetic field. As the wave travels through space, these two fields constantly regenerate each other. A fundamental property of electromagnetic radiation is its geometry. The electric field and the magnetic field are always oriented perpendicular, or at right angles, to one another. They are also both at right angles to the direction the wave is traveling. Because they are two components of the exact same wave, they do not travel at different speeds—they both move together at the speed of light. They also do not travel in parallel or revolve in opposite directions.