volume (electric) charge density
41Green's function — In mathematics, Green s function is a type of function used to solve inhomogeneous differential equations subject to boundary conditions. The term is used in physics, specifically in quantum field theory and statistical field theory, to refer to… …
42Грина функция — Функция Грина используется для решения неоднородных дифференциальных уравнений с граничными условиями (неоднородная краевая задача). Функция Грина линейного оператора L, действующего на обобщённые функции над многообразием (в частности, над… …
43Conserved current — In physics a conserved current is a current, jμ, that satisfies the continuity equation . The continuity equation represents a conservation law, hence the name. Indeed, integrating the continuity equation over a volume V, large enough to have no… …
44Vlasov equation — is a system of non linear integro differential equations describing dynamics of plasma consisting of charged particles with long range (for example, Coulomb) interaction. The equations were first suggested for description of plasma by Anatoly… …
45chargedensity — charge density n. The electric charge per unit area or per unit volume of a body or of a region of space. * * * …
46Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …
47Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …
48liquid — liquidly, adv. liquidness, n. /lik wid/, adj. 1. composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid. 2. of, pertaining to, or consisting of liquids: a liquid diet. 3 …
49electricity — /i lek tris i tee, ee lek /, n. 1. See electric charge. 2. See electric current. 3. the science dealing with electric charges and currents. 4. a state or feeling of excitement, anticipation, tension, etc. [1640 50; ELECTRIC + ITY] * * *… …
50physical science, principles of — Introduction the procedures and concepts employed by those who study the inorganic world. physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding… …
