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1、高中物理选修3-1总复习I.electricfield1.twokindsofchargeandchargeconservationlaw,elementcharge:(E=1.60*10T9C);chargedbodychargeisequaltotheintegraltimesoftheelementcharge2.:F二kQlQ2/r2(CoulombforceF:invacuum){pointchargebetween(N),k:constantstaticpowerk二9*109Nm2/C2,QI,Q2:?Twocharge(C),th
2、edistancebetweenthetwor:charge(m),inthedirectionoftheirattachment,forcewiththereactionforce,likechargesrepeleachother,uniikechargesattracteachother}3.electricfieldstrength:E=F/q(definition,formula){E:(N/C),theelectricfieldintensityisavector(thesuperpositionprincipleofelectric
3、field),Q:electricityinspectioncharge(C)}4.vacuumpoint(source)Eelectricchargeformation=kQ/r2{R:sourcechargetothelocationdistance(m),Q:sourcecharge}E5.fielduniformelectricfieldvoltage=UAB/d{UAB:AB(V)betweentwopoints,d:ABpointsinthefielddirectiondistance(m)}6.electricforce:F=qE{
4、F:(N),electricchargeq:byelectricfieldforcepower(C),E:field(N/C)}7.potentialandpotentialdifference:UAB=phiA-phiB,UAB二WAB/q=-DeltaEAB/qTheworkof8.electricforce:WAB二qUAB二Eqd{WAB:fromAtoBwhenthechargedbodyelectricfieldforcework(J),q:(C),thechargepotentialdifferencebetweentwopoint
5、s,ABUAB:(V)(independentofelectricfieldandtheelectricforceactingonthepath),E:uniformelectricfieldstrength・D:pointsalongthefielddirectionofthedistance(m)}9.electricpotential:EA二qAphi{EA:inthechargedbodyelectricpotentialpointA(J),q:(C),electricpotentialphiA:Apoint(V)}ChangeDelta
6、EAB10.electricpotential二EB-EA{chargedintheelectricfieldfromthehighschoolphysicalexperimentApositiontotheBpositionoftheelectricpotentialdifference}11.,theworkofelectricfieldforceandthechangeofelectricpotentialenergyisEAB二-WAB二-qUAB(theincrementofelectricpotentialenergyisequalt
7、othenegativevalueoftheworkdonebyelectricfieldforce)The12.capacitorC二Q/U(definedtype,formula){C:(F),Q:powercapacitor(C),U:voltage(twoelectrodepotential)(V)}13.parallelplatecapacitorC二epsilonS/4PIKD(S:twoplatefacingarea,d:twoplateverticaldistance,Omega:dielectricconstant)Common
8、capacitor14.accelerationofchargedparticlesinanelectricfield(Vo二0):W二
