高考物理二轮复习 教师 专题一专题六

1、教师文档专题一-专题六mABFO，如图所示。用TOAOFTFTFTFTOFTOFTabmababmmmmmTOcabeqoac(,R)aObTmgaaOaOacbcTGmgmOOOabFbFbOObabbabaTmagaababOObTfFFFTmbgTmbgFabRREIFBILbakxmgkxxmgFmabacdcLmmabdcaBRgabababcdabcdcdTabFabFcdFabIImgRmgFTFFmgcdmgFTFmgFmgvabEBLvERFBILmgRvBLmgBLmPmgmgmgmgOOOFFPFFPFFmgFmgFaFmgmgmgmgaABBBBABmABmmBmmmg

2、mgmgBBmgmgmgmmmBABBBMAmABgBMgBmgmgAmgABAAFmgBAFmgAmgBABBFMmgMmgABBFFmgAOOAOAmMgTmgOATT，所以，沿OAFTTTFfTFTMgFMgTFEqFBIlFqvBFFxFyABababABABABQqABdABxAOdBxQqABdABABdBqQxAFmgkdmgLxQqabgBBabbaabBILmgBILmgmgILababkxBILmgkxBILmgabkxBILmgxmgBIxmgBILxkxmgBILmgBILabObFaFababaFmgmgabmgFmmABOABqqABBBAqEBmgqEmgmmmm

3、ggmaammggmmaammggmmaalOmABqqqABEABOBABOBABBqEmgAEAmglqEBEBmglAWAqElBWBqElWWBWAEAEBWWABOABFAFBFAFBFAFBFAFBFAFBABOABFmgFABFAFBFFFFFFFFFFFmgFmgFFMmmgmgmmgaabbabbaababba，当导线bbaabFBIlbaaFGFFaaaa如图GFFFGFGFFFGFGFGGfFFFfFOOmmABBAFBFTFmgFmmgFmgTmgFmgATFFTmgmgmgFmgmgBTFABCABCmmACBCACBCmmTmgmgmmmTmgmgmmmmgTFFm

4、mmmTmgmgmFmgFFFmgFPQMmPQPPQPrPkPQmgrkPMmgPQqPqFkrmgFqmgmgrkPFmgFPFmgFqPQPFkrqfkrPMmgMmgMmgMNmABAFMkgMNBBBmgNFFmgFkxNNFxNkABmgFMFmgFmgmg，选项MFFmgFkxMMxMkBNBNMmFgFBFmgFFfMgFfdBErmRabRgRRRRRRrRRIREabUabEIrUabIRUabIRUabRFFfFbaFBIRdFmgFfmgFFfFfmgtsststststaaattvvsvvtvvsvtttttvttvvvtxxtxxxxxxxxxxxxtvtvvttt

5、tvtttvvvvgtgtvvvvvxtgtgvvtavmgmgma，即ggggvvvvxtvvtPQPQFaPQaFFkmav20aPQnFkmav20anmFnmaPQknkNnknnkNnkNnkNnkNvAvBastmgmasvtmvavmgmavsvtavvtvtvtvtvtxtvtabctavabbbccabbcvgabmbcLaamgamgmamgmgmamLFFaFgFFmgma，解得ag，由aFggmFFFFmmmaavvdxtavaxatvvatttxxvtat21txxvtxxxxdtvatvattttxxxvtat22xvtvttattxxxxdLLmFhgaLaLta

6、FfvFFfmaFfmgv21aLavavvthFFfmgmaatvvavvtvvavtttgxggxgmagvvtfmgvgtxgtvAmAmBqBEEgaBaBaAaAaBEqmBgmBgmBmAaBEqmBgmBmAmBaBEqmBgmBmAmBaTkmgmataAmBgqEvBaBtvAaAtmAtvBaBtvAaAttvavtattmtvkvtFkmgmaTFvTmkgmkgmkgkmgFkmgFTTkmgFTTkmgTkmgTkmgTTTkmgvttvtmgmgmgmavatmgmavatvttmgmavvatQmv20Qmtatktvgftdstamgfmavavafvavatd

7、txakdmgfmadtttxtamgmftxatsdxxxvtattaxvtatxxaggcedfmbcdedFFmgmadadfFmgmafafdfttvxvvvaxxavaaavtvaxvaxFxxatttattatmqAvtgvvtvtxxtaaqEmgmamgmaExWqExFkmgvvkmgkmgvvkmgkmgvFFmvkmgxxkgPPvvmABAkBFaAgABFABABBFmgmaFABABkxmgABAkxmgmaxxattABBAvtBgsaaattABLmmgmgmamgmgmamgLmgssxmMLAOvxPgmMgmMgmgaMMsvvtvAPmMgmMav20v

8、axLvamgtvvaMtvvamttvagsvavaAPsLssgmfafmgmafmgaaMvstssasFFkkllMgFfMaFkmMgsvtatsvtatsssllsslFPQPQPQPQPQPQPQmgLmvvgLLPLQvPvQEmgLmPmQvvFmgmLFmgaLgRmPWgPaNaaaaNNmRmgRWRmgRWmRmgRWRPmgRWmvaaNmgmaNvmgRWRmRmgRWRrRTTT22rRTTT22rTkRrrRRTLLhhgvvvvhhLLLLghvLghgvgvghLLghLLghLLghgtgtvthhLvLghLLvtvvLLgLvhLLghhgthgvg

9、gTGgggGTgGTggGTgGTgggTggTRGGTggRRGRmgGRmgmTRgMRGgggFvFFAvByAvxvxvxvxxvvttyvtygvabPabPbaaabhgtavtxvtaggvaaRPvQOQvvggvRvRvvvgtvRvRvttHdLhPvgvvvvvvLvthgtvvLdvthHgt22vvvFmmrFmmrmvmrvrTvrrTvvgRvmmmmmrmrmmmmmmvRTmgmRTmgmRTvRvvRvTvRvTmgFFvvRvRgvgRTvvvTRrOOLgkmgmvrvvvxrvkgRxLRrvvxrvvkgramRrtOLOOmAHHLgABABCC

10、ALHvAAvAmgmLAvAgLBvBmgLmvAvBvBgLBFFmgmLBFmgAAxvAtAHLgt2ABBxvBtBHLgtBLHLgLmgLHGGmaarrMmvrrTMmGRmgGMgRRgGMgRaaaaaaaaaaaaaaaaaaaMmrrraaGrmarraaaaarTrTGMTGMTGrmTrTrTrrTvrTrrvrTvMknMknkMnkMknMTRGTRGmMmRTmTmMmRrGMmRrMRTGTnRnnRnMMGkTkmFmFABABxBRFCFmgDgCCmgFmRRhgtvCBCBCDABFxmv2BvBv2CFmgvCBCmgRWfmvCWfCDtDhgt

11、hBRmgRBACCBCBBFNBBFNBCvygtvxvyBCxvxtBvBFmgmRvBvxBFNBRABOgABgRCCACmgRgrAAvRAAmgmrrvAAgRgRgRxmvBmgRmvBmgRRvAtygtxyRyCR，选项，选项EkCmvAmgyEmgRABABvvvvvvmgmLLgLmABABLgABvvmgmgmgmgrLrLLvmgmvFrFmgvrvFmgmabcamrmrma，解得vrrTmrmrma，解得vrrTracababGMmmvGMrGMGMGMaacacGMTrGMmmgmaababaaabbarvrRhGMmmvrrGMGMGMrGRghgRhGRgh

12、gVrVrGMgRMRGRggMGRgGrggmgmvgrghrvghvhABBCABCDtttACvvvABChhAhBtgtthhBhCttvxvvxxxvvvtvxvvxxxvvvxxtttvvvvhBhChAvvvmGGmLLGmLGmGmLGGLLGGLLLmvGmLTTTGmvLmLGLmGmaaGmaaLLLxvthgt21dxtxtVvtavxaxttvVtQvMNMNLvMNBRhRhRhhRhMNEMNRghEBLvERGMmRMmvGmgRv如图AvmBBCCCMABCHhRgBHhgtvlmgHHhgtvlmgHmv22mvCFFmgRBvyvygtvvvyvyACmv

13、vFCFfmgFfMmgFfFfvgBMNMMNNBBBBBvvrqvBmTmTqBtTqmBTOMONOMBmqqvOMOMONOMOmvqBmvqBmvqBmvqBrrONADr，故eqoac(,r)AODODAMONCDmvOCDCODODCDrqBqBqvBqvBrrrmmvrmvqBvqBkkkkmvqqvBTRmvmRTRBTqvBTRmvmRTRBTBaBaBkBkRvqBqBRBTBkkqvBvqBmRmaBmqqABAvBABUABUABqBvBvBvvBvABUABqUABmv2BvmvmvqymvymvvyvEatvvqElLvtqUyatvyatamdyvqvLULvm

14、vyvqvLULvmvdUdyLdEqUydqAqBABvCDOCCDmamamBABABABABtABxvtOCCDAtBthhatataAaBqEqEmamAABLdvnqmmayatdmadmayatdmadUUUqdLvtyydatUqdUtNndvtydUqdWNLAvvvtyvLvtyat21vatvv20vLyLyLvvatLvtavatvvvvvvxvyvvxvvxLvxavxqvBmvxqvBmqBqBmErmvTvxavvxvvvvvrmqBdBvAACtCBACvtCBBttBBttrrqrqddvmvmvBqvm，即B，联立得BBBqmtBqBBqmtBqtTtTabc

15、defffdvbbtbvcctcvbvctbtcvbvctbtcvbvctbtcvbvctbtcvqBrvrcrbbcqvBmrmvbvcrbvmqBTtTbctbtcqBmmmqBmmmqBqBqBRFqBvmaavBBttBBmvqBrdrrdrrr最大”、最高”、RvBOBRROOCvBRtBrrrRRtTrrrRRtTqvBBqvmRBvBqvmrRrRrRRmTrmvBqrmvvrmvqrBBBvvACDEADECBOFQmqACOaPACQOFQOaACBBDEDEACOFRaqBaqBvRaaRRavqvBmRmACACOFrrrarrarrvqvBmBBBBACOFOFraBn

16、anmvBBqvBmrPPPOFPPaDEDEACLnPPnanaqBBAMNMNmTOxmTOxMNMNMNBqx，在xBxBRmxmxRxmmmBqBBqdOxBqxxRmvBqtxqxxRRRklkkkkUUqUmvvqUdqUqUdqUttdqUqUmdmlvtqUmUUdkkdlBvLMNqmOyxmvmvmvBqLmvmvqvBmvmvqvBmryNyMOMxrxrxLmvvmvrqBBqLLABCDMNABADvmqMDNBCmvqEmvqEmqLmvLNtqEBCADmvMLvtqEmvLattENxqExmvxEmvEmvRBAvBRvvrqvBBRvvrqvBtrmBROv

17、RRRmvqvrvRvabcdBavabtdabvtcdvvttvvttrtrrrtrrvvrrttmvtBqTTTLBqLTLTBqmeUULdvyUdmegeUmvmveUmvvtLmeUaaUdmmdULyatGmgFEeUFEdFGEEqqEmGmGeUmUdABCDABADLmqvtAABRBqRBqCDBqLatTCDBaDCCBTRvmvBqvmRRLmvvvRLACnRLvnmvBqvmRLvnmvBqvmBnTLnmvvqLLADLnRnRqLmTRLnmvBqnvTTnvnmvnLnqLnvxOyxdldABABBOymqABvCdBCBABqvBqvBnABvqvBrqB

18、dqvBqvBnABvqvBrqBdqBdmvnBnOABAvOrdmvrqBdvmABBvCrdmvrqBdvmqBdqBdmmBCBdrnmvBnBnmOBtmnnmmBCtTqBqBnmOCtttqBmmqBMNONMOMNMNONMOMNMNOMNMNONMOMNMNMNNgggWFWGEMNWFWGEPtfvtFfABBCFfABBCBABRBCAAAFFfmafPPFfvPFPFvFFfmaPFfvfRRBACmAEkAREkAmgBEkBREkBmgEkAmgmvC2EEkAmgmvC2kBCCFFCvCvCFmgmRCvCRRmgmvClmlAPABlBlBCDBDPABPlP

19、gPmPBABBPPlmlEmglPMBvBEMv2BMglMmvBglPDDPvmglgtmglgtmvlPDvDmvBmvDmvBvDglvDPDDvDPABtPABBsvDtslPBmglMglPPCPMvBMglmMmMmgllmMmhhmmgACABRAFACABRAFRPgvmmvmmvmvmmvmvvmvvmvmvvvvmvmvmvmvmvmvvRCACRABCDmPCEPFGGCCRRGGCCRRPPEPPEPDDPBClRRRPBvBmglmglmv2BvBgRBExPEEPBEmgxmgxEmv2BEFllRRxPEEFEmglmglxREmgRPmDGxyxRRyRRRC

20、PDvDDGtygtxvDtvDgRgRmgRgRmPCgRmgRgRmmvCmvDmgRmvCPECEmgxRmgxRmv2CmmvtPtPPWFlWmvmvFlWPtWtPFvvPvPFvEPtxavatFtvtvaxxmmFmFFmvxEmtPFvmvtaxaxfmaWfxtaaxvaxfmafmaWfxWfxtavatFFvtFvtaFtFmgfmaFmgfmvPFvFWGEWEQFfxWEWERNABABRAmBmgANBmgRmgRmgRmgRARNEmgmgRmgRANvEmvmvvgRANBWmvmgRmgRmAABCAChCvAgmvACmvmvACmvmghBBACAgBA

21、CCEWfACmghWfECAmvEmghmvEmghWfWfmvmvEmghBmghmvEWBAmvEmghWvvmABgLLvABvEQABLvttABtLtvtvABatavvtvBvvmgmgammamgmgmBvEmvEmgLEvQmgvttmgtvtQEEEEEEEEEEEEmLOAFABTFBATTTmgABFmgLBABAABBTTmgmgLmvBAAmvTmgLTmgABWFmgLWFmgLBAPmgvBPAPABPmrmmrrfkrmgfmakrmgfmaagrrmgkRBOOPPaahatttvahvvffWfhBPCDOPgmmhBvBOxxBOyRvvxvtygtvy

22、gtvvyBOxxRvxxPCmvCvPEmvPmgRmvCvPCDhRgtxvCtEEEExEmvmvmvmvFtmvmvmvmvmvmvppQPPPQPQPPPPPPPPvPmvmvMvPvPPgvgvSMSvSgtvlvtmVVVlSmtVShFMgFFFFvvvghtmmvStFmgtmvtmgFtmvvMghgvSvMggvSvSMQPAFPBWFFPQQQgPQQvQFPEWFPEmPvvPQQvPvmPvmPvmQvmPvmPvmPvvvvQumQvmQMumQgLmQvmQMuLvvtvvFxmv21FvvtvvFxmv21FxmvmvmvFxFFFFFFmFABxFBCxta

23、aFtFtFtxatmxvtatattatmmFFxFxFxFxvCvBv，则有xt，xCvFxvtttttttttttvvFxFxmFFmgtFtFamaxatttFamaxatttFmmgxtFmgamgOmFABAOBOvvvtvvvtvmvtxxxtxxat，xttFmgmgFFFABvvvFmvFmgtFmgmgmmmmgmgOAFmgmgmgFFxABdUTAOqmtABBOtTOUxdmUxTvvTvvUxdmUxTvvTvvxxUOABUxxaaUqTUqatxvtatatxvtatTTUqTUxvTUqTTUqTqUTvaEmvdmmdadmadmAadmadmABxxdUq

24、TxxxxmdqUqUTmdmdUqTmFLFWFFLmgLFFWFmgLmgLWGWGWfEWfmmvmvmvmvvgtvatFFfmaPFvFfmavFfmaat；在tvFFfPFvFfvPhmghgmgmgh解析mghmghhmghmghmgmvvghamgmgamgmgmgabRbcvabcRvRbmvmREccvcgRmvmgRmvcmgRvgRRvvmmREbcmgRmvcmvmvbvbgRbNmvbvbgRbNmgPAABBAAABBAAAAABABBABABABAAALhDAsBHAghgthgtvHBHAsvthvhgmgHmghmgHmghmvghgtvHhsDvtvgsD

25、vgsDmgHmghmgHmghmgLmvHhLvgRPQLAvRLvAmPQgAAPQLAvLAAvmgLmvvAhmgLmghmvhRAhAhhRmgLmghmvLAmmgvAmmgRmgLmgRmvmvLALLLLLMBCLAmABFtFACsgaBMaBMFtAAABaAmgFmgsBsALaBtaAtLtABvAaAtvBaBtABmvAMvBmMvmvAMvBmMvEmvAEvxmvAMvBmMvvvEmgxxsLxxsQmgLsxQPQPQPQPQPPqEmgQPPQPQQPabcdMNPQMNPQMNPaMcMQNMQPQMNPMNBOAOBOAmOPNBOAOBOAmOMQM

26、QPMQPQOABOBAqqOABOAAOBBgOBdOBdAvEOAtOAddgtExEpAEpBEdgtExEpAEpBEmgEmvEmgdAEkAEkAEmgdEkAddOABEEpBEpAEEmgdEEpBEEmgdEOBMAMOxdxdMAOCEqEdEpAqWGWEWfEWfABmqCACBCABmgqEmgqEmgqEqCABCmgqElmvmMvmvmMvlmgqEmvmMvmvmMvmgEmgqONPNOPOPqMMNONaONONOxOPxEEEkgExmxxqEqAEgxEgxxaaxxEmgxmxxrqqkrmgrxqmgaEEEEQIRtMNPQRmabMPNQNQh

27、NQMPgmghmghEQWQmghEmghEEWmghWmghLRBrhgBLvBLvmmhRqvghEmgBILEBLvIrErRghmghhmv2mQmvQhhhBLhtEBLhtErRBLhqBLhqrRhgtgthvmvvmvgvssvtvtmvmvmvmghmvhmvmvmvmvWmvmvmvQcdabcdabcdMONMONLNOONMOOMabBcdcdtLRababgtabEtabcdMOOMcdabmcdabsQCDGHDGCDGHDGababHRmgmaRtvatEBLvEttabEtEIIcdmgBILmabcdabmcdababcdQmgsQtCCDPmqECDL，圆

28、弧DGrGHgCDEqEmgLqEmgLmgCPLLqEGHqEmgCHqELmgLqErmgrEEDGHDsqELmgssEGqErmgrEEMNPQLBababRabqvabvvBLqRqBLvBLvRmgmatmgmatRRRBLQmgsmvRRsBsLqRqIttsBLvACDACCADDCDFqvBADDCADDCDNMMNMNMNMNqqABABEpMNEEppEEEpppEEEpppMNMNABEEEpmEpppMNLBhmRLabLabLvabLddhvmgRmgRabababBhmgdabababLLdabRFmgmaFBhIBhBhvRBhvBhvmgRvabLLdmgdQ

29、EQmgdKBETWmv2EmvBTWmv2EmvBBBvBfTBLfTLvBLEvEUWBEWqmWqUWWUABDABBDRBEvBmqgmgqEmgqEmDmDBvvDDtBxvRmgqERtxvDtxvvmvmvmvmvmvvvvmgRqERmvDmvmvmgqERmHxabcdmRabLtFFvtgFBLvsvvmRsvabsabQvtIEBLvvIEBLvvatFmgmgmaFvtvRRFBILFmgmgBLvRvvsvvvsvvmRmRQIRtBLHvRvHabxxHvmgxHmgxHmvmvvvgxHvmgmgabvBLBLHvQmv22QQQCCrCUQCUCQEUrSkdd

30、UdEPPQPabcQPabcaaabacvavbvcFkqqFkqqaaabacvavcvbaaabacvbvcvaabacaavbvcvaabacaavavcvbrabcFbFcFaFamabacaaQPcbaWbaWcbvavcvbaaamgqEaFBIlQEUCSQCUSQCUEkddPPrSdCrSdCUCQEkdQUUdPPUPEyEdmqMAvNBBmvgqUMNmgdqmgdABBmvmgmaagEqqqUMNEdmgdmgqABqEqWqUABABUABABABWABEMNMNMNMNMNNMNMNMMNABBABABABBABABABPQOABPQOAOBABABABABA

31、BABOOPQABABABABABfaaFEqfefbcdecbdmmbdbdbdFBILIBFqvBvBabOrOaObBOaIBIrBIrBIrBIrBIrababrBIrabcdqEFOFOFEOFEFeeReRRRRemTOFFEqOFFEmvmvqBqneBqnBqBkIlmsvsvsvsvBIlBIlsmvmBkIvIklsIIvIklssvssklsmvLBtITIIFBILtttTtTFBILTTTTTTTTtBTTTTttttTTFBILFabcacabbcabcEaEbEcabcabEaEbEccabbEaEbEccabbcABAPQAAABAAABFFAfFFFBmgPQ

32、BFfFABBQQMNOMOQQONOQQMNOMqMOqNOMNOMONMqMOqqNORBMNMNMmqvqBRRvmmqvqBRRvtMMNqBRqBRrvvMNrtTMOPMLLmImgfmgBFBILBBFBILBOOPMNOrrrrOOPOPMNMNMNOPOPMNMNMNabcdORObcdObOdOOOdeceOcecef，则cecefOdcOdUROfEPUEEPrSrSQUQkQkdCdCdrSUUEEQdCCUUEEPPPPEqMNMNBMNamqqMNbabLBqLBqLmBqLBqLmmmBqLmrrnBqvmvmnLvBqrnrmBqLnABOABaavaOmaOm

33、vvABEmvmvmvavabcacqLqLabcabcEpcEpbEpaabbcEpcEpbEpaabbcabbcxEkxxmgOkxLABmBqAOLAqABvABAmgEkLqqBEkLqABmgqAEqEqAqBBOxmgqEqmgqEqmgxxLmgLEqLmgLEqLmv2mmvmgqgLmgmgvgLmqmqqUqUmvvqUmqvBmqvBmmUBBqqrBrqUmBmBxOyxyxvdxyRRtdBmqRvqvBmRdExaxtxvxEqmaxvxaxtvxvvvvEBtdvdvxOyMNPQEyRADOOMNAOMNmqOARMNPQQPCqERmvAqERmvAqvBBE

34、mRataROCvtOCRBMNMQACOAmvRqRqEmMNRMQRAMNqBtqBmmRqEmRMNCtaqEtttqEtttqEmREmMNRMQRqRmRqEBEPQxOyAOyAOyBEqmPPQyQyOAttaOAvPQqEqvBvvqvBmrrOACOQrOQCTmBqCCvttaEqmtOAtttxOyyExOyyBmgEBBBEEqmqabPQyMlaMyabaqEmgaarqBTrmvqBarqBTrmvqBmvmvrqvBrtTtTararTmvrmqBvqBatTqBmqBttlarlarrlabbrrllEBmqvPgvPtqvBqEvvEqEmgaayatayat

35、mxxvtyyxtPvvPvtgttxIyBabzababMNdBMNPREEUPRBqvqvMNNMNUUdBdQQPReemqUTqBtANnRdBmTqvBmqUntandattqvBmqUntandatttmUdmUqBRtnttmUqBEEtdRvREmvqBREmnEEnqUmdTBRBRdmUqBTTTqBRqBRBRBRdmdxBxmqyahyxybyrvExtqBvmrqBvmrvqBrmmrhv21qBhxxbvbvbvmvbqBhmbrtbybbrvbtybvthErErmvBqtTttttBqqEybmvbqhBmTmxtTqBmttqBxxmqBmmmmmqBhqhB

36、BqBqahhxOExtqvBmvqBhqEqvBmvqBhqEhmvmmqBvrmqBhEhmtvqBmtTqBmtttqBqBhmxxahhExtqvBmrqvBmrEtTTTmqBrhv20mvqBhmv20ahqEmaqBhmmqBvtamtqBmtttqBqBhmSBRRBmvqBmvqqqBmmEqvBqEvRMNMMNSPPxrrqUxxxmvmBxqUmvqvBrxmqvBLqvBqvBUBLvqUBLvIIBILvILIUBLvPIRRIUBLvPIRRBLvUdamqBUBdUBdqUBqqUDvDqUmvmvqUmUBqvqdmDvBqvmrrDmmmBdmBdmmBqq

37、UqUqUmLBxLyExLBxLmqyOxvqvBvqvBmvqBvvqBLRBxLxxLxLLRLvqBLLmyOxatLvtyatqEmamEyqBmELxxLmvBLqvBmRxLdRBLSRddRBLSRdLqBvvtBEExvtxLBLBqBLmEBLmqBBxOyytOvymBtAqvBmrmvvtvtvtxAmqBTTtqBtTTvrqBqEqEvtvtmyvttvvmmvtyvvmvvtrqBryyrvtdtxrrdvtvtdtttdvtxOyxxBBExxaNxQxQglglOlgBEglBEaqlaNyOhPalaNyOhPamgqEmRRlvglbbxabaqgmEaN

38、QRqvBvRamgqvBmgaTTRlgaatglgbxtthlgTTtntnbvlvtvgEglRRRUIIInnIInnInnInRInIUIIRnIRInRRInIUIIRnIRnCECQCQQQURURERRUURERRQUEQUQCUUUUUUUUUUUnInIUUnInIPUIabUkUUkUkUkUkUIUIIRRUInUInRUURUPIRIIPPknnRabcdUabUcdUU22UUcdUabUUU22UUcdUabUUabncdRUcdUPRRPUabUcdnnRcdUcdnUUTRncdTRRnUabRUcdncdRRErRRRRRRRRRPIRRRCRCPRrRbR

39、PRbIRRRRPPIIIIIIRUUUUUURrrSBeiSBeiSBeittEnBSitiItitiItUrRrRrrRrUI，选项PUIUUrRuUtUURREEErEUIrIUREURiItuUtNabcdbcLOOOOabcdeNeNeabLeBLeNetabcdeeBLvTBLLLTBLNeENNeENeNeteTtBLLttrnnnUnnInnInnnUnnInnIUuttUnUUuntIItPPUIPPnUUnnPPPPIIRPPfntRnENBSRRRbaebtabRRInInIIRRIabPIURPIRnInIIRPIRPUUTUUnUTURRPUIPIrPIrPPIIUU

40、SNOOBPReNBStPRPReeNBStENBSBSqBSqNPRNBSRPRPPPRPRRRSNrRRBtRNBSRrTRNBSRrTTTNBSRrRrtRRRteiTRQRnnnnnnnnnnnnnnnnnnnnnUnnUInUnUUUPRnInUnUUUUUUUUUUIIIIIIIUUUUUabcdabcdLbcadLnrBOOEFRRrnBRrnBLLRRreEtnBLLt，选项EnRrBLLqItqnBLLIEBLLenBLLtBLLREnBLLtRrEEIEEInBLLnBLLRrnBLLRRrnBLLRRrutPPutTPabcdBdcNadabRRRENBSRTUTURnI

41、RnInIIRQtRPUIUIPPIRnIIPPPUInIIITfTfEIETRrUIRPUIUnUnInUnUInIPUIErRRRCaUUIabUUIUUUURrUUIIababRUUUUIIIIRrRabRRUIUUCQQUCUCUIRIIIIUUUU如图RrrUUEIrUIRIURPUIIrRRLLnrOOCDRBtBBtttEnEnnLLBBIRrtRRRtttREnLLBBRrtEnBLLEnBLLRInBLLRrtQtQIRtRnBLLttRnBLLRrEnIEIEnBLLRrtRrnBLLnBLLRqItnLLBBnBLLRrtRrRrRrnBLLRPQBRabRabEabEB

42、LvBLIERrIIPIRPBLRRrMOMNONOMONMNtOMONTttEBRNNTTTTTTMabcBabababcUaUbUcbclUaUcUbUcabcaUbcBlUbcBlacbaabcbcacUaUcUbUcUbcBlabcdabcdabcdcdablmltFtBgIBlIBltRBltgmmaFmgmavvatvEBlvFEBltmgIERRFBlIFmgFmFBltlRSBtBktkMNBtvMNEIEIqtqtktSqttttttMNtBSktStERIkSRtttttRqRttMNMNFFFFIFBlIMNsvttBlsItktSBlvttItktSBlvttkStBl

43、vkSBSktSttttBlvttkSttttttBlvkSttEtttERBlFBlvkSRRBlREnEBlEnEBltEBlvabBEaEbEraaEaEbEaEbEaEbEaEbBErttEbrbEntnRLrLBBBBtBBrBrrBrqnRRQnttBtrBrtBntRaEEBLvEntEIRrUEIrFBILFmaFmavEIFLRBmrFaRvaFRFtRtFtRtFtRtFtRtFFAFFABLatRrmaBLatRrFFtmaBLvmaRrRtABCDabcdlRmmlBABCDabcdlABCDgIvmgRmglmglmvIvmgRmglmglmvQBlttabcdvTA

44、BCDTmgabcdTmgBIlEREBlvBlQlmgRQmglabcdvabcdtlvBlmgRmgRmgRmgRmgRBlmglBlBlrnabcdPbcmRLrtBtgEEntRRRRRQtBEnrPIREIRREPtQPttQPtFmgFnBIrBtBtIItBiBtabcBtttabFtabtttabcabcdaIibcLLBLRabcdxvBLvRxbcLLLbcbcLLbcadbcLLadl、电阻为RABClBCvtAiFitFtBCBCFBIlllvIlltFtlcddecfRRabvBabbacddefeabababEBlvabcdRdecfEBlvdecdfeUcdRRa

45、lxlxEBlvBvxxFBlvRBxvRxPFvxablalbBBEtttBBEtttEbBtRnlnlStabababkEnnlanlSEEklSIIlabklSBnklSPIEnlPlabrBCDBBrEBrvBrrCDabCDbaBrlaBaRarRBBRtRttrRtRttBrBBEriiTEBrTEErTQRRlBRmrMNFFvFFkvFkiFARURPtvvEBLvIEkBLBLBLRRrvIvFABILRrvFAvRURIRRBLvURvPEIRrvPvBLBLFkvRrvmaFkRrvmaFBLRrBLkRrFvavBLkRrFvavldBmCDGHCDsFGHCDCDCDCDgCDvCDFACDWQaFmgIBlvFARIBlvFAREBlvRFAIBlBlvtWFsdtFmgFCDdvQIRtLRhBBmRFgIIEBLvvIEBLvvFhmghWmv22mvvvFmgBILRRRFmgBILRRRQWQEEBLBEEBLLLOAORtSSLLBSEBLrRBvabababvOAtStLtBLttabbaabrEBrRrEBrRTrtTTRRRRabEIvTWffsfvtTTQIRtWWfQabbaEEnnnhEErnnrnEhWEWEkhNnnnnEnnnnnnnnnEEhEEhhEEhEEhnhmvWEEEEhWWhWhEhMZMZMZMZMZtNN