Tables show relative permittivity (to vacuum) of various substances (solvents).

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Some facts#

Simply speaking permittivity tells us how easily electric phenomena propagates withing given medium.
Permittivity is usually denoted by the Greek letter epsilon: $\varepsilon$ .
Electrical permittivity can be defined as the ratio of the electric field induction to the field strength:

$\varepsilon = \dfrac{D}{E}$
The medium with the lowest permittivity is vacuum:

$\varepsilon_0 = 8,854187817... \cdot 10^{-12} \dfrac{F}{m}$
Basic permittivity unit in SI system is farad per meter:

$\dfrac{F}{m}$
Two electrical charges $Q_1$ , $Q_2$ isolated by medium with permittivity $\varepsilon$ , act on themselves with force:

$F = \dfrac{Q_1 Q_2}{4\pi\varepsilon r^2}$
where:
- $F$ - force with which $Q_1$ and $Q_2$ charges interact,
- $Q_1$ - value of first charge,
- $Q_2$ - value of second charge,
- $\varepsilon$ - permittivity of medium between charges,
- $r$ - distance beetween charges.
Relative permittivity is sometimes called dielectric constant.
Relative permittivity tells us how many times the permittivity of a given medium is greater than the permittivity of vacuum:

$\varepsilon_r = \dfrac{\varepsilon}{\varepsilon_0}$
where:
- $\varepsilon_r$ - relative permittivity of medium,
- $\varepsilon$ - absolute permittivity of medium,
- $\varepsilon_0$ - permittivity of vacuum.
Medium permittivity depends on temperature and pressure. Values given in this calculator have been measured at the pressure of 1013,25 hPa and temperature of 20 °C.

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permittivity_of_substances · permittivity_of_solvents · solvents_dielectric_constants · substances_dielectric_constants

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przenikalnosc_elektryczna_substancji · przenikalnosc_elektryczna_rozpuszczalnikow · stale_dielektryczne_substancji · stale_dielektryczne_rozpuszczalnikow

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TABLE · CHEMISTRY · A -> Z (all)

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