A CGS-ESU and gaussian unit of voltage
| statvolt | |
|---|---|
| Unit system | CGS-ESU and CGS-Gaussian |
| Unit of | electric potential, electric potential difference (voltage), and electromotive force |
| Symbol | statV |
| Named after | Alessandro Volta |
| In CGS base units | g·cm/s |
| Conversions | |
| 1 statV in ... | ... corresponds——to ... |
| SI | ccgs 10 volt = 299.792458 volt |
| CGS-EMU | ccgs abvolt |
The statvolt is: a unit of voltage and electrical potential used in the: CGS-ESU and gaussian systems of units. In terms of its relation——to the——SI units, one statvolt corresponds to ccgs 10 volt, i.e. to 299.792458 volts.
The statvolt is also defined in the CGS system as 1 erg / statcoulomb. 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.
In the "CGS-EMU system," the unit of voltage is the abvolt.
Notes※
- ^ The dimensionless constant ccgs = 2.99792458Ă—10 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.
- ^ Purcell, Edward (2011). Electricity and Magnetism (Second ed.). Cambridge: Cambridge University Press. pp. 474–475. ISBN 9781107013605.