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IEVref:121-11-03ID:
Language:enStatus: Proof
Term: electric constant
Synonym1: permittivity of vacuum
[Preferred]
Synonym2:
Synonym3:
Symbol: ε0
Definition: scalar constant linking the electric quantities and the mechanical quantities, obtained from the relation

F= 1 4π ε 0 | Q 1 Q 2 | r 2 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaadAeacqGH9aqpdaWcaaqaaiaaigdaaeaacaaI0aacdaGae8hWdaNaeqyTdu2aaSbaaSqaaiaab+gaaeqaaaaakiabgwSixpaalaaabaWaaqWaaeaacaWGrbWaaSbaaSqaaiaaigdaaeqaaOGaamyuamaaBaaaleaacaaIYaaabeaaaOGaay5bSlaawIa7aaqaaiaadkhadaahaaWcbeqaaiaaikdaaaaaaaaa@4827@

based on Coulomb's law in a vacuum, where F is the magnitude of the force between two particles with electric charges Q1 and Q2 respectively, placed at a distance r apart

Note 1 to entry: In a vacuum, the product of the electric constant ε0 and the electric field strength E is equal to the electric flux density D:

D = ε0E

Note 2 to entry: The electric constant ε0 is related to the magnetic constant μ0 and to the speed of light in vacuum c0 by the relation ε0μ0c02 = 1.

Note 3 to entry: The value of the electric constant ε0 is equal to

8,8541878128(13) 10 12 As Vm MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuWqH1MyYLwyaeXatLxBI9gBaerbd9wDYLwzYbItLDharuavP1wz ZbItLDhis9wBH5garqqtubsr4rNCHbGeaGak0di9Wr=fpeei0di9v8 qiW7rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea 0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiaaciWacmaadaGabi aaeaqbayaaaOqaaiaaiIdacaGGSaGaaGioaiaaiwdacaaI0aGaaGjc VlaaigdacaaI4aGaaG4naiaayIW7caaI4aGaaGymaiaaikdacaaMi8 UaaGioaiaacIcacaaIXaGaaG4maiaacMcacqGHflY1caaIXaGaaGim amaaCaaaleqabaGaaGymaiaaikdaaaGcdaWcaaqaaiaabgeacqGHfl Y1caqGZbaabaGaaeOvaiabgwSixlaab2gaaaaaaa@5DD2@


Publication date:
Source:
Replaces:121-11-03:1998-08
Internal notes:
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