nonhomogeneous medium
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Larmor formula — In physics, in the area of electrodynamics, the Larmor formula is used to calculate the total power radiated by a nonrelativistic point charge as it accelerates. It was first derived by J. J. Larmor in 1897, in the context of the wave theory of… … Wikipedia
Electric displacement field — In physics, the electric displacement field, denoted as , is a vector field that appears in Maxwell s equations. It accounts for the effects of free charges within materials. D stands for displacement, as in the related concept of displacement… … Wikipedia
phase — 1. A stage in the course of change or development. 2. A homogeneous, physically distinct, and separable portion of a heterogeneous system; e.g., oil, gum, and water are three phases of an emulsion. 3. The time relat … Medical dictionary
Lumped capacitance model — A lumped capacitance model, also called lumped system analysis,[1] reduces a thermal system to a number of discrete “lumps” and assumes that the temperature difference inside each lump is negligible. This approximation is useful to simplify… … Wikipedia
Covariant formulation of classical electromagnetism — Electromagnetism Electricity · … Wikipedia
