Electromagnetic field

The electromagnetic field is composed of two related vectorial fields, the electric field and the magnetic field. This means that the vectors (E and B that characterize the field have a value defined at each point of space and time. If only E, the electrical field, is different than 0, and its constant in time, the field is said to be and [electrostatic field]?.

The behaviour of electromagnetic fields can be described with Maxwell's equations, and their quantum basis by quantum electrodynamics.