| 词条 | Statvolt |
| 释义 |
| name = Statvolt | image = | caption = | standard = esu-cgs and gaussian | quantity = voltage and electrical potential | symbol = statV | symbol2 = | namedafter = | extralabel = | extradata = | units1 = SI derived units | inunits1 = 299.792458 volt | units2 = cgs | inunits2 = 1 erg / esu }} The statvolt is a unit of voltage and electrical potential used in the esu-cgs and gaussian system of units. The conversion to the SI system is exactly 1 statvolt = 299.792458 volts. (The conversion factor 299.792458 is simply the numerical value of the speed of light in m/s divided by 106)[1] The statvolt is also defined in the cgs system as 1 erg / esu.[1] It is a useful unit for electromagnetism because, in a vacuum, an electric field of one statvolt/cm 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.[1] The abvolt is another option for a unit of voltage in the cgs system. References1. ^1 2 {{cite book|last=Purcell|first=Edward|title=Electricity and Magnetism|year=2011|publisher=Cambridge University Press|location=Cambridge|isbn=9781107013605|pages=474–475|edition=Second}} 2 : Units of electrical potential|Centimetre–gram–second system of units |
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