Difference between revisions of "Permittivity of Free Space"

Latest revision as of 14:34, 7 September 2019

The permittivity of free space is a measure of how easily electrostatic fields can propagate through the vacuum.

The permittivity of free space is denoted with the Greek letter epsilon followed by a subscript of 0 (\(\varepsilon_0\)).

The unit of permittivity of free space are the Farad per metre \(Fm^{-1}\).

The permittivity of free space is a universal physical constant of magnitude \(8.85\times10^{-12}Fm^{-1}\).

When an electrostatic field propagates through a medium which is not the vacuum the permittivity of that medium is given by the product of its relative permittivity and the permittivity of free space.

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 : The '''permittivity of free space''' is denoted with the Greek letter epsilon followed by a subscript of 0 (<math>\varepsilon_0</math>).
 : The [[unit]] of '''permittivity of free space''' are the [[Farad]] per [[metre]] <math>Fm^{-1}</math>.
-: The '''permittivity of free space''' is a [[Universal Constant|universal constant]] of [[magnitude]] <math>8.85\times10^{-12}Fm^{-1}</math>.
+: The '''permittivity of free space''' is a [[Physical Constant|universal physical constant]] of [[magnitude]] <math>8.85\times10^{-12}Fm^{-1}</math>.
 : When an [[Electrostatic Field|electrostatic field]] propagates through a [[medium]] which is not the [[vacuum]] the [[permittivity]] of that [[medium]] is given by the product of its [[Relative Permittivity|relative permittivity]] and the '''permittivity of free space'''.