IEVref:121-11-02ID:
Language:enStatus: Standard
Term: Coulomb's law
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Definition: law giving the force between two charged particles, expressed by the relation

F 12 =k Q 1 Q 2 r 2 r 21 r =k Q 1 Q 2 r 2 e 21 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaGGadiaa=zeadaWgaa WcbaGaaGymaiaaikdaaeqaaOGaeyypa0Jaam4AaiabgwSixpaalaaa baGaamyuamaaBaaaleaacaaIXaaabeaakiaadgfadaWgaaWcbaGaaG OmaaqabaaakeaacaWGYbWaaWbaaSqabeaacaaIYaaaaaaakiabgwSi xpaalaaabaGaa8NCamaaBaaaleaacaaIYaGaaGymaaqabaaakeaaca WGYbaaaiabg2da9iaadUgacqGHflY1daWcaaqaaiaadgfadaWgaaWc baGaaGymaaqabaGccaWGrbWaaSbaaSqaaiaaikdaaeqaaaGcbaGaam OCamaaCaaaleqabaGaaGOmaaaaaaGccqGHflY1caWFLbWaaSbaaSqa aiaaikdacaaIXaaabeaaaaa@5626@

where F12 is the force exerted on the particle with electric charge Q1 by the particle with electric charge Q2 , k a positive constant, r21 the vector from the particle with electric charge Q2 to the particle with electric charge Q1, r = |r21| the distance between particles and e21 the unit vector r21/r

NOTE – In vacuum the constant k is equal to 1/4πε0 where ε0 is the electric constant.


Publication date:1998-08
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Internal notes:2017-06-02: Cleanup - Remove Attached Image 121-11-02.gif
2019-05-21: "Coulomb law" corrected to "Coulomb's law" as per mail from TC 1 WG 100 convenor 03 May 2019 . JGO
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