# permittivity of vacuum

> physical constant defining the capability of an electric field to permeate a vacuum

**Wikidata**: [Q6158](https://www.wikidata.org/wiki/Q6158)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Vacuum_permittivity)  
**Source**: https://4ort.xyz/entity/permittivity-of-vacuum


## References

1. CODATA recommended values of the fundamental physical constants: 2022
2. IEC 80000-6:2008 Quantities and units—Part 6: Electromagnetism
3. IEC 80000-6:2022 Quantities and units — Part 6: Electromagnetism
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)