Statvolt
| statvolt | |
|---|---|
electric potential difference (voltage), and electromotive force | |
| Symbol | statV |
| Named after | Alessandro Volta |
| In CGS base units | g1/2·cm1/2/s [1]:26 |
| Conversions | |
| 1 statV in ... | ... corresponds to ... |
SI | ccgs 10−8 volt = 299.792458 volt[a] |
| CGS-EMU | ccgs abvolt |
The statvolt is a unit of
The statvolt is also defined in the
It is a useful unit for electromagnetism because, in a vacuum, an electric field of one statvolt per centimetre has the same energy density as a magnetic field of one gauss. Likewise, a plane wave propagating in a vacuum has perpendicular electric and magnetic fields such that for every gauss of magnetic field intensity there is one statvolt/cm of electric field intensity.[2]In the CGS-EMU system, the unit of voltage is the abvolt.
Notes
- ^ a b The dimensionless constant ccgs = 2.99792458×1010 is numerically equal to the magnitude of the speed of light when the latter is expressed in cm/s.
- ^ As of the 2019 redefinition of the SI base units, this correspondence is not longer exact.
References
- ^
Gyllenbok, Jan (2018). Encyclopaedia of Historical Metrology, Weights, and Measures: Volume 1. Birkhäuser. ISBN 978-3-319-57598-8.
- ^ ISBN 9781107013605.