(Untitled) | (Untitled) | (Untitled) | (Untitled) | (Untitled) | Examples |

IEVref: | 705-03-24 | ID: | |

Language: | en | Status: Standard | |

Term: | characteristic impedance of vacuum | ||

Synonym1: | |||

Synonym2: | |||

Synonym3: | |||

Symbol: | |||

Definition: | the square root Z_{0} of the magnetic constant μ_{0} divided by the electric constant ε_{0}$Z}_{0}=\sqrt{\frac{{\mu}_{0}}{{\epsilon}_{0}}$
NOTE – In the International System of units (SI), the characteristic impedance of vacuum is equal to:
| ||

Publication date: | 1995-09 | ||

Source: | |||

Replaces: | |||

Internal notes: | 2015-12-02: Correction to formula in note proposed by Erik. See mail: <i>Z</i><sub>0</sub> = <i>c</i><sub>0</sub> · 4π × 10<sup>−7</sup> H/m. JGO 2017-06-02: Cleanup - Remove Attached Image 705-03-24.gif | ||

CO remarks: | |||

TC/SC remarks: | |||

VT remarks: | |||

Domain1: | |||

Domain2: | |||

Domain3: | |||

Domain4: | |||

Domain5: |

$Z}_{0}=\sqrt{\frac{{\mu}_{0}}{{\epsilon}_{0}}$

*Z*_{0} = *c*_{0} · 4π × 10^{−7} H/m

*c*_{0} being the velocity of electromagnetic waves in vacuum; *Z*_{0} is approximately equal to 120π Ω or 377 Ω.