电磁学参考公式英文.doc

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1、Formulae:Theelectricfieldatapointontheperpendicularbisectorofauniformlychargedthinrod:Theelectricfieldatapointontheaxisofauniformlychargedthinring:Gauss’sLaw:Fortheelectrostaticfield:Theelectricpotential:Theelectricpotentialatapointontheaxisofauniformlychargedthinring:Theworkdonebythe

2、electricfieldforce:Theelectricpolarizationoftheisotropicdielectric:Thesurfaceboundchargedensityonthesurfaceofdielectric:Theelectricdisplacement：Fortheisotropicdielectric:Gauss’sLawabout:Thecapacitanceofaparallel-platecapacitor:Thecapacitanceofacylindricalcapacitor:Thecapacitanceofasph

3、ericalcapacitor:Parallelcombinationofcapacitors:Seriescombinationofcapacitors:Theenergystoredinacapacitor:7Theenergystoredintheelectrostaticfield:Themagneticforcethatactsonachargeqmovingwithvelocityv:ThemagneticforceonanarbitrarilyshapedwirecarryingcurrentI:Thetorqueonacurrentloopwhen

4、theloopisplacedinauniformexternalmagneticfield:TheBiot-Savartlaw:Gauss’slawinmagneticfield:ThemagneticfieldatadistanceofrfromastraightwiresegmentcarryingcurrentI:Themagneticfieldontheaxisofacircularcurrentloop:Themagneticfieldontheaxisofasolenoid:Ampere’slaw:ThegeneralformofAmpere’sla

5、w:magnetizationofisotropicmagneticmedium:surfaceboundcurrentdensityonthesurfaceofmagneticmedium:magnetic-fieldintensity:Forisotropicmagneticmedium:Ampere’slawabout:Faraday’slawofinduction:motionalemf:inducedemf:7mutual-inductance:mutual-inducedemf:self-inductance:self-inducedemf:Theen

6、ergystoredinthemagneticfieldofaninductorcarryingacurrentI:Theenergystoredinthemagneticfield:：7