eFeld

EFeld is a term that may be encountered in several contexts, most commonly as a shorthand for the electric field in physics. In German-language texts, the electric field is often written as E-Feld, with a hyphen, but the compact form EFeld may appear in diagrams, variable labels, or branding.

In physics, the electric field E(r) is a vector field that assigns to each point in space a vector representing the force per unit electric charge exerted on a stationary test charge. The field is described by Coulomb's law for point charges and by the superposition principle for multiple sources. It is related to the electric potential Φ by E = −∇Φ, and its SI unit is the volt per meter (V/m). Field lines and surface charge distributions are common ways to visualize the field.

In computing and data representation, EFeld is often used as an identifier for an electric-field data structure or variable, storing components Ex, Ey, Ez or the field's magnitude and direction. It appears in simulations of electromagnetism, capacitor analysis, and charged-particle dynamics, and may be serialized in data files or represented in schematic annotations.

Outside physics, EFeld can appear as a brand name or a fictional term in media and product literature, reflecting its associations with science and engineering.

Related topics include electric field, Gauss's law, Coulomb's law, electrostatics, and field theory.