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...lity]] α of the atoms or molecules constituting the dielectric. The relative permittivity is a bulk (macroscopic) property and polarizability is a microscopic proper

{{r|Relative permittivity}}

...intervening medium, while Coulomb's law contains a factor (the static [[relative permittivity]] ε_r, also known as dielectric constant) depending on t ...so known as relative dielectric constant) of the medium, respectively. The relative permittivity of air (ε_''r'' = 1.000536 at ambient temperature and pre

...o the electric field '''E''' times &epsilon;. The latter quantity is the [[relative permittivity]] &epsilon;_r times the [[electric constant]] &epsilon;<sub>0</su

...d to the fact that the quantum vacuum has a susceptibility greater than 0 (relative permittivity > 1). [http://books.google.com/books?id=KXvoI-m9-9MC&pg=PA388&dq=vacuum+sus

The relative permittivity &mu;_r may be greater than or less than 1. For simple media, if