Editing Physical constant (section)

== Table of physical constants ==
{{main|List of physical constants}}

The table below lists some frequently used constants and their CODATA recommended values. For a more extended list, refer to ''[[List of physical constants]]''.

{| class="wikitable sortable"
|-
! Quantity
! Symbol
! Value<ref name="concise">The values are given in the so-called ''concise form'', where the number in parentheses indicates the ''[[standard uncertainty]]'' referred to the [[least significant digit]]s of the value.</ref>
! <small>Relative{{br}}standard{{br}}uncertainty</small>
|-
| [[elementary charge]]
| <math>e</math>
| {{physconst|e}}
| {{physconst|e|runc=yes|ref=no}}
|-
| [[gravitational constant|Newtonian constant of gravitation]]
| <math>G</math>
| {{physconst|G}}
| {{physconst|G|runc=yes|ref=no}}
|-
| [[Planck constant]]
| <math>h</math>
| {{physconst|h}}
| {{physconst|h|runc=yes|ref=no}}
|-
| [[speed of light|speed of light in vacuum]]
| <math>c</math>
| {{physconst|c}}
| {{physconst|c|runc=yes|ref=no}}
|- 
| [[vacuum permittivity|vacuum electric permittivity]]
| <math> \varepsilon_0</math>
| {{physconst|eps0}}
| {{physconst|eps0|runc=yes|ref=no}}
|-
| [[vacuum permeability|vacuum magnetic permeability]]
| <math> \mu_0 </math>
| {{physconst|mu0}}
| {{physconst|mu0|runc=yes|ref=no}}
|-
| [[electron|electron mass]]
| <math>m_{\mathrm{e}} </math>
| {{physconst|me}}
| {{physconst|me|runc=yes|ref=no}}
|-
| [[fine-structure constant]]
| <math>\alpha = e^2 / 2 \varepsilon_0 h c </math>
| {{physconst|alpha}}
| {{physconst|alpha|runc=yes|ref=no}}
|-
| [[Josephson constant]]
| <math>K_{\mathrm{J}} = 2 e / h </math>
| {{physconst|KJ}}
| {{physconst|KJ|runc=yes|ref=no}}
|-
| [[Rydberg constant]]
| <math>R_\infin = \alpha^2 m_{\mathrm{e}} c / 2 h </math>
| {{physconst|Rinf}}
| {{physconst|Rinf|runc=yes|ref=no}}
|-
| [[von Klitzing constant]]
| <math>R_{\mathrm{K}} = h / e^2 </math>
| {{physconst|RK}}
| {{physconst|RK|runc=yes|ref=no}}
|-
|}