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{{r|Multipole expansion of electric field}}

{{r|Electric field}}

In Gaussian units the [[electric field]] '''E''', the [[polarization]] '''P''', the [[electric displacement]] '''D <tr> <td><i>E</i> </td> <td>[[Electric field]] </td> <td>V/m </td> <td>10⁴/<i>c</i

...rostatics]], Gauss' law is a theorem concerning a surface integral of an [[electric field]] '''E'''. In [[Vacuum (science)|vacuum]] Gauss' law takes the form: ...rface element d''S'', pointing outward. The vector '''E'''('''r''') is the electric field at the position d'''S''', the dot indicates a [[dot product]] between the v

{{r|Multipole expansion of electric field}}

At a microscopic level, the magnetic flux '''B''' and the electric field '''E''' determine the behavior of charges. For example, a single moving cha

...ow determination of exact solutions of the [[Maxwell equations]] for the [[electric field]] and [[magnetic flux density]] generated at an arbitrary location by an id ...is the [[magnetic constant]] of the [[SI units]].With these potentials the electric field and the magnetic flux density are found to be (dots over symbols are time d

{{r|Multipole expansion of electric field}}

where the electric field '''E''' is integrated around a closed path ''C''.

...etc.). As its name suggests, it consists of two [[vector fields]], the [[electric field]] '''E''' and the [[magnetic field]] '''B'''. The '''Fourier expansion of The electric field obeys one of the Maxwell equations, in electromagnetic [[SI]] units it read

...-known example of a Helmholtz decomposition is the following form of the [[electric field]] '''E''',

...ric, charge distribution, like a noble gas atom, which does not create an electric field in its environment. Take a [[Cartesian coordinates|Cartesian coordinate sys

...ease by which &rho; can be polarized under the influence of an external [[electric field]] '''E'''. ...ollows from [[quantum mechanics|quantum mechanical]] laws, and an external electric field polarizes the electronic charge cloud. The amount of shifting of charge can

...''' to magnetic field '''''H''''' and electric displacement '''''D''''' to electric field '''''E'''''.

...evel, organizing centers are singular points in the morphogen gradient and electric field

Suppose the atom is placed at <math>z=0</math> in an external (classical) [[electric field]] of frequency <math>\omega_L</math>, given by <math>\vec{E}(z,t)=\vec{E}_0 ...he dipole approximation has been assumed, and for this to remain valid the electric field must be near resonance with the atomic transition. This means that <math>\

...'''Maxwell equations''' are the mathematical equations that describe how [[electric field|electric]] and [[magnetic field|magnetic]] fields are created by [[electric ...the most basic ones are the ''microscopic equations'', which describe the electric field '''E''' and the magnetic field '''B''' ''in vacuo'', together with their s

...eration after [[lesion]]s such as limb [[amputation]]. He suspected that [[electric field]]s played an important role for controlling the regeneration process, and t

...s or molecules (in particular proteins, [[DNA]], and [[RNA]]) through an [[electric field]] that separates them exclusively on the basis of their size or [[molecular The velocity of the particles are related to the [[electric field potential]] by the following equation:

...econd-order Stark effects. The first-order effect is linear in the applied electric field, while the second-order effect is quadratic in the field. ...ldes auf Spektrallinien I. Quereffekt'' (Observations of the effect of the electric field on spectral lines I. Transverse effect), Annalen der Physik, vol. '''43'''