注：不含主觀題第1題單選題(1分)Ap-njunctionisforwardbiasedwhen____.Atheappliedpotentialcausesthen-typematerialtobemorepositivethanthep-typematerialBtheappliedpotentialcausesthen-typematerialtobemorenegativethanthep-typematerialCbothmaterialsareatthesamepotentialDNoneofthese第2題單選題(1分)Ap-njunctionisreversebiasedwhen_______.Atheappliedpotentialcausesthen-typematerialtobemorepositivethanthep-typematerialBtheappliedpotentialcausesthen-typematerialtobemorenegativethanthep-typematerialCthecurrentflowacrossthejunctionisbasedonminoritycarriertransferDAlloftheabove第3題單選題(1分)Thediffusioncapacitanceofadiodeisashuntcapacitanceeffectthatoccurswhenthediode_____.AislargeBissmallCisforwardbiasedDisreversebiased第4題單選題(1分)Thetransitioncapacitanceofadiodeisashuntcapacitiveeffectthatoccurswhenthediode_____.AislargeBissmallCisforward-biasedDisreverse-biased第5題單選題(1分)Thereversesaturationcurrentofadiodewilljustabout___forevery10°Criseinthediodetemperature.AdoubleBhalfCincreaseproportionatelywithtemperatureDdecreaseproportionatelywithtemperature第6題單選題(1分)Increasingthetemperatureofaforward-biaseddiode______.AcausesforwardcurrenttoincreaseBcausesforwardcurrenttodecreaseChasnosignificanteffectontheforwardcurrentDNoneofthese第7題單選題(1分)Someofthemodernohmmetershaveadiodetestsetting.Ifyoudonothaveoneoftheseohmmetersthentotestthediodeyouneedtocheckitsresistanceintheforwardandthereversedirection.Theseresistancesshouldbe_____.ArelativelyhighintheforwarddirectionandrelativelylowinthereversedirectionBrelativelylowintheforwarddirectionandrelativelylowinthereversedirectionCrelativelylowintheforwarddirectionandrelativelyhighinthereversedirectionDrelativelyhighintheforwarddirectionandrelativelyhighinthereversedirection第8題單選題(1分)IntheZenerregionthecurrent________andthevoltageacrossthediode_____.Aisalmostconstant;canincreasealotBisalmostconstant;isalmostconstantCcanincreasealot;isalmostconstantDcanincreasealot;canincreasealot第9題單選題(1分)The____diodeisashortcircuitfortheregionofconductionanditisanopencircuitintheregionofnonconduction.AidealBtypicalCpowerDsmall-signal第10題單選題(1分)Theidealdiodesymbolhasanarrowthatpointsinthedirectionof______.AtheleakagecurrentflowBtheforwardcurrentflowCpositiveterminalunderforwardbiasDAlloftheabove第11題單選題(1分)Asthedevicetemperatureincreases,semiconductormaterialstendtohave______.AanincreasingnumberoffreeelectronsBadecreasingnumberoffreeelectronsClowerconductionlevelsDrelativelyunchangedconductionconductionlevels第12題單選題(1分)Dopingisusedto____.AdecreasetheconductivityofanintrinsicsemiconductorBincreasetheconductivityofanintrinsicsemiconductorCstabilizetheconductivityofanintrinsicsemiconductorDincreasetheinsulativequalityofanintrinsicsemiconductor第13題單選題(1分)Whenap-njunction'sdepletionlayerisnarrowedandthedeviceactsasanearlyperfectconductor,itis______.Aforward-biasedBreverse-biasedCunbiasedDNoneoftheabove第14題單選題(1分)Whenap-njunctionisreverse-biased,thedepletionlayeris________andthedeviceactsasanear-perfect______.Anarrowed;conductorBnarrowed;insulatorCwidened;conductorDwidened;insulator第15題單選題(1分)Theelectrodewithn-typematerialofadiodeiscalledthe_____.AanodeBcathodeCdepletionregionDZenerregion第16題單選題(1分)Silicondiodeshavebeenmoresignificantlydevelopedthangermaniumbecause___.AitischeaperBitiseasiertoproduceCitismoretolerantofheatDithasalowerforwardvoltagedrop第17題單選題(1分)Pentavalentatomsareoftenreferredtoas_____.AdonoratomsBminoritycarriersCacceptoratomsDmajoritycarriers第18題單選題(1分)Theelectrodewithp-typematerialofadiodeiscalledthe____.AanodeBcathodeCdepletionregionDZenerregion第19題單選題(1分)Whentestedwithanohmmeter,adiodeshouldhavearelativelyhighresistancefor_____condition.Athereverse-biasedBtheforward-biasedCbothreverseandforward-biasedDzero-biased第20題單選題(1分)Whentestedwithanohmmeter,adiodeshouldhavearelativelysmallresistancefor____condition.Athereverse-biasedBtheforward-biasedCbothreverse-andforward-biasedDzero-biased第21題單選題(1分)Theactofgivingofflightbyapplyinganelectricalsourceofenergyiscalled_____.AlightpowerBlaserCphotonsDelectroluminescenceChapter2assignment第1題單選題(1分)Ifonesilicondiodeandonegermaniumdiodeareconnectedinseries,thevoltagedropacrossthecombinationofthetwodiodeswillbeequalto______.AtheforwarddropequaltothatofthesilicondiodeBtheforwarddropequaltothatofthegermaniumdiodeCtheforwarddropequaltothatofthesumofthevoltagedropsacrossthetwodiodesDtheforwarddropequaltothatofthedifferenceofthevoltagedropsacrossthetwodiodes第2題單選題(1分)Namethelogicgatethatisformedbythiscircuit.______.ApositivelogicORgateBpositivelogicANDgateCnegativelogicORgateDnegativelogicANDgate第3題單選題(1分)Thecurrentflowsthroughtheloadresistorinthiscircuitduringthe____.ApositivehalfcycleoftheinputwaveformBnegativehalfcycleoftheinputwaveformCentireinputwaveformDThediodewillblockallcurrentandtherewillbenocurrentflowingthroughtheload.第4題單選題(1分)Calculatethepeakcurrentthatwillflowthroughthiscircuit,assuminganidealdiode.______A12mAduringthepositivehalfcycleB12mAduringthenegativehalfcycleC16.97mAduringthepositivehalfcycleD16.97mAduringthenegativehalfcycle第5題單選題(1分)Ahalf-waverectifierisconnectedtoaACsourceof20Vm.Thedcoutputvoltageis____.A19.3VdcB13.65VdcC6.14VdcDNoneofthese第6題單選題(1分)Thepointofintersectionbetweenthecharacteristiccurveofthediodeandtheresistorsloadlineisknownasthe_____.ApointofoperationBQ-pointCquiescentpointDAlloftheabove第7題單選題(1分)Namethelogicgatethatisformedbythiscircuit.______.ApositivelogicORgateBpositivelogicANDgateCnegativelogicORgateDnegativelogicANDgate第8題單選題(1分)Thecurrentflowsthroughtheloadresistorinthiscircuitduringthe____.ApositivehalfcycleoftheinputwaveformBnegativehalfcycleoftheinputwaveformCentireinputwaveformDThediodewillblockallcurrentandtherewillbenocurrentflowingthroughtheload.第9題單選題(1分)Calculatethepeakcurrentthatwillflowthroughthiscircuit,assuminganidealdiode.______A12mAduringthepositivehalfcycleB12mAduringthenegativehalfcycleC16.97mAduringthepositivehalfcycleD16.97mAduringthenegativehalfcycle第10題單選題(1分)Forthisclippingcircuit,whatwillbethemaximumoutputvoltagewhenthediodeisconducting?______.A+16.97VoltsB-16.97VoltsC+2.5VoltsD+19.47Volts第11題單選題(1分)Whichofthefollowingcircuitsisusedtochangethedcreferenceofasignalwithoutchangingtheshapeofthesignal?_____AaclipperBaclamperCavoltagemultiplierDavoltagedividerChapter3assignment第1題單選題(1分)Thisisthesymbolfora______.Anpn-typeBJTBpnp-typeBJTCpnn-typeBJTDppn-typeBJT第2題單選題(1分)IdentifytheterminalsonthisBJT._____A1=base,2=emitter,3=collectorB1=emitter,2=collector,3=baseC1=collector,2=base,3=emitterD1=collector,2=emitter,3=base第3題單選題(1分)Forbasicoperationofatransistorthebase-emitterjunctionis____biased.Aforward-Breverse-CnotDsemi-第4題單選題(1分)Forbasicoperationofatransistorthecollector-basejunctionis_______biased.Aforward-Breverse-CnotDsemi-第5題單選題(1分)WhichofthefollowingistrueforthisBJTcircuit?_______AThebase-emitterandcollector-basejunctionsarebothforward-biased.BThebase-emitterjunctionisforward-biasedandthecollector-basejunctionisreversed-biased.CThebase-emitterjunctionisreverse-biasedandthecollector-basejunctionisforward-biased.DThebase-emitterandcollector-basejunctionsarebothreverse-biased.第6題單選題(1分)WhichofthefollowingistrueforthisBJTcircuit?_______AThebase-emitterandcollector-basejunctionsarebothforward-biased.BThebase-emitterjunctionisforward-biasedandthecollector-basejunctionisreversed-biased.CThebase-emitterjunctionisreverse-biasedandthecollector-basejunctionisforward-biased.DThebase-emitterandcollector-basejunctionsarebothreverse-biased.第7題單選題(1分)Inthesaturationregion,thebase-emitterjunction_____.Aandthebase-collectorjunctionsarebothforward-biasedBandthebase-collectorjunctionsarebothreverse-biasedCisforward-biasedwhilethebase-collectorjunctionisreversed-biasedDisreversed-biasedwhilethebase-collectorjunctionisforward-biased第8題單選題(1分)Inthecut-offregion,thebase-emitterjunction_____.Aandthebase-collectorjunctionsarebothforward-biasedBandthebase-collectorjunctionsarebothreverse-biasedCisforward-biasedwhilethebase-collectorjunctionisreverse-biasedDisreversed-biasedwhilethebase-collectorjunctionisforward-biased第9題單選題(1分)TheoutputorthecollectorcharacteristicsforacommonbasetransistoramplifiershowsthatasafirstapproximationtherelationbetweenIEandICintheactiveregionisgivenby_____.AIE=ICBIE>>ICCIE<<ICDIE≈IC第10題單選題(1分)Inasmall-signaltransistor,thetypicalrangeoftheparameterαis_____.Agreaterthan1Bbetween0and1Calmostequalto1butalwayslessthan1(0.9to1.0.Dalmostequalto1butalwaysgreaterthan1(1.0to1.1.第11題單選題(1分)Whichtransistoramplifierconfigurationisthemostcommonlyused?_____Acommon-emitterBcommon-collectorCcommon-baseDNoneoftheseareusedmoreoftenthantheothers.第12題單選題(1分)ABJThasmeasureddccurrentvaluesofIB=0.1mAandIC=8.0mA.WhenIBisvariedby100μA,ICchangesby10mA.Whatisthevalueoftheβdcforthisdevice?__A80B10C100D800第13題單選題(1分)WhenaBJTisoperatinginthesaturationregionthevoltagedropfromthecollectortotheemitterVCEisapproximatelyequalto_______.AthecollectorsupplyvoltageBthecollectorcurrenttimesthecollectorresistorCzero(about0.3Volts.Dtheemittervoltage第14題單選題(1分)WhyisthearrowontheBJTschematicsymbolimportant?__AItidentifiestheemitterterminalandthetypeofBJT.BItidentifiesthecollectorterminalandthetypeofBJT.CItidentifiesthebaseterminalandthetypeofBJT.DNoneoftheabove第15題單選題(1分)Whichofthefollowingexpressionsistrue?__Aβac=Bβac=Cβac=whereVCBisconstantDβac=whereVCEisconstant第16題單選題(1分)Whichofthefollowingexpressionsistrue?__Aαac=Bαac=Cαac=whereVCBisconstantDαac=whereVCEisconstant第17題單選題(1分)VCEismeasured______.AfromtheemitterterminaltogroundBfromthecollectorterminaltotheemitterterminalCfromthecollector-emitterjunctiontogroundDNoneoftheabove第18題單選題(1分)Inmostcases,whichtwoofthethreeBJTterminalcurrentsareapproximatelyequalinvalue?__AcollectorcurrentandbasecurrentBcollectorcurrentandemittercurrentCemittercurrentandbasecurrentDAllcurrentsareapproximatelyequal.第19題單選題(1分)Whichofthefollowingbiasingcombinationsisnotnormallyassociatedwithoneofthethreetransistoroperatingregions?____AE-Bjunction=forward,C-Bjunction=reverseBE-Bjunction=reverse,C-Bjunction=reverseCE-Bjunction=reverse,C-Bjunction=forwardDAlloftheabove第20題單選題(1分)βistheratioof_____.AcollectorcurrenttoemittercurrentBbasecurrenttocollectorcurrentCcollectorcurrenttobasecurrentDemittercurrenttocollectorcurrent第21題單選題(1分)AgivenBJThasanemittercurrentof12mAandabasecurrentof600μA.Whatisthevalueofβdc?____A20B21C19D200第22題單選題(1分)95mA.Whatistheexactvalueofβ?____A300B299C1.003D250第23題單選題(1分)AgivenBJT,β=400.Whatisthevalueofαforthedevice?____A1.0025B0.002C0.9975D1.00第24題單選題(1分)AgivenBJThasanalphaof0.9985andacollectorcurrentof15mA.Whatisthevalueofbasecurrent?____A15.15mAB14.85mAC15mADNoneoftheabove第25題單選題(1分)Agiventransistorhasratingsofmaximumcollectorcurrentequalto200mAandabetathatvariesbetween150and200.Whatisthemaximumallowablevalueofbasecurrentforthedevice?____A1mAB4mAC1.33mADNoneoftheaboveChapter4assignment第1題單選題(1分)WhenaBJTisbiasedinthecut-offregion,itsbase-emitterjunctionis________-biasedanditscollector-basejunctionis________-biased.____Aforward;reverseBreverse;forwardCforward;forwardDreverse;reverse第2題單選題(1分)WhenaBJTisbiasedinthesaturationregion,itsbase-emitterjunctionis________-biasedanditscollector-basejunctionis________-biased.____Aforward;reverseBreverse;forwardCforward;forwardDreverse;reverse第3題單選題(1分)Calculatethebasecurrentforthiscircuit.____A0.904mAB0.96mAC0.056mAD6.0mA第4題單選題(1分)Thisemitter-stabilizedbiascircuitisoperatinginthe_______.AsaturationregionBcutoffregionCactiveregionDThetransistorisnotproperlybiased.第5題單選題(1分)Calculatethebasecurrentforthisemitter-stabilizedbiascircuit.____A89.0mAB89.0μAC0.119mADNoneoftheabove第6題單選題(1分)Calculatethebasecurrentforthisvoltage-dividerbiascircuit.____A233.78μAB34.62μAC596.55μAD76.8μA第7題單選題(1分)Calculatethebasecurrentforthiscircuit.____A28.4μAB20.2μAC28.3μADNeedmoreinformationtocalculatethebasecurrent第8題單選題(1分)Whendesigningacurrent-gain-stabilizedvoltage-dividerbiascircuitsuchasthisone,theruleofthumbusedfortheemittervoltageis_____.AVE=VCC/10BVCE=VCC/10CVB=VCC/10DVC=VCC/10第9題單選題(1分)WhenaBJTtransistorisusedinaswitchingcircuit,itoperatesinthe______.AsaturationandactiveregionsBactiveandcutoffregionsCsaturationandcutoffregionsDactiveregiononly第10題單選題(1分)WhenaBJThasitsbase-emitterjunctionforwardbiasedanditscollector-basejunctionreversebiased,itisbiasedinthe______.AsaturationregionBactiveregionCcutoffregionDpassiveregion第11題單選題(1分)WhenaBJThasitsbase-emitterjunctionreversebiasedanditsbase-collectorjunctionforwardbiased,itisbiasedinthe____.AsaturationregionBactiveregionCcutoffregionDpassiveregion第12題單選題(1分)WhenaBJThasitsbase-emitterjunctionforwardbiasedanditscollector-basejunctionalsoforwardbiased,itisinthe_______.AsaturationregionBactiveregionCcut-offregionDpassiveregion第13題單選題(1分)WhenaBJThasitsbase-emitterjunctionreversebiasedanditscollector-basejunctionreversebiased,itisinthe________.AsaturationregionBactiveregionCcutoffregionDpassiveregion第14題單選題(1分)Themaximumcollectorcurrentforthiscircuitis_____.A1.13mAB12mAC6mAD1.0mA第15題單選題(1分)WhenaBJTisincutoff,thecollector-to-emittervoltageistypicallyequalto_______.AcollectorsupplyvoltageBcollectorcurrenttimescollectorresistorC0.3VoltsDemittervoltage第16題單選題(1分)ThechangeinβandVCEthatcanoccurwhenthetemperaturechangesisknownas______.AmidpointbiasBmidpointmovementCoutputmovementDQ-pointmovement第17題單選題(1分)A(n.______isaddedtothefixed-biasconfigurationtoimprovebiasstability.AbasevoltageBemitterresistorCcollectorresistorDAlloftheabove第18題單選題(1分)Theinputresistanceofastabilizedfixed-biascircuitconfigurationis_____.AinverselyrelatedtotheemitterresistorBinverselyrelatedtoβCdirectlyrelatedtothecollectorresistorDdirectlyrelatedtotheemitterresistor第19題單選題(1分)Twoofthefactorsassociatedwithbiasstabilityare______.AvoltageandcurrentBtheβandthejunctiontemperatureCageandamountofuseDNoneoftheabove第20題單選題(1分)Whenatransistorisinsaturation,thetotalcollectorcurrentislimitedby______.AcollectorsupplyvoltageandthetotalresistanceinthecollectorandemittercircuitsBcollector-to-emitterandcollectorsupplyvoltageCcollectorsupply,collector-to-emittervoltage,andthetotalcollectorcircuitresistanceDthetransistor第21題單選題(1分)Theemitter-followerconfigurationhas_______.Aa180°phaseshiftBanoutputvoltageslightlygreaterthantheinputvoltageCtheemitterconnectedtodcgroundpotentialDNoneoftheabove第22題單選題(1分)Inthedesignofanemitter-biasstabilizedcircuitengineering,judgmentmustbeusedbecausethe______.AcollectorresistorisusuallyunknownBemitterresistorisusuallyunknownCrelativevoltagelevelshavenotbeendefinedDAlloftheabove第23題單選題(1分)Whendesigningforbestbiasstabilitythe_______configurationshouldbechosen.Avoltage-dividerbiasBcollector-feedbackbiasCfixed-biasDemitter-feedbackbias第24題單選題(1分)Whendesigningavoltage-dividerbiascircuit,thedividerresistors_____.AshouldcarryapproximatelyequalcurrentBshouldcarrycurrentsthatare10timesthebasecurrentCdeterminethebasevoltageasthedropacrossbase-commonresistorDAlloftheabove第25題單選題(1分)Whyisdesignforaspecificbiaspointdesirableformostamplifiers?____ATomeetmanufacturersuggestedopeningpoint.BItallowsoptimumacoperationofthecircuit.CItallowsoptimumdcoperationofthecircuit.DAlloftheabove第26題單選題(1分)Therearetransistorsthatarecalledswitchingtransistorsbecause_____.AtheyhaveabuiltinswitchBofthespeedatwhichtheycanbechangedfromontooffCofthepowertheycantransferfrominputtooutputDofthevoltagetheycantransferfrominputtooutput第27題單選題(1分)Transistorcircuitsthatarequitestableandrelativelyinsensitivetotemperaturevariationshave______.ArelativehighsupplyvoltagesBlowsupplyvoltagesClargebetasDsmallbetas第28題單選題(1分)Todesignatransistorcircuitformaximumstability,onemustconsider______.AthecollectorleakagecurrentstabilityfactorBthebase-emitterjunctionvoltagestabilityfactorCthetransistor'sbetastabilityfactorDAlloftheabove第29題單選題(1分)Variationinhfeisinfluencedby______.AjunctiontemperatureandcollectorcurrentBtemperatureandbasecurrentCbiastypeanddevicesizeDdevicesizeandbasecurrentChapter5assignment第1題單選題(1分)TheinputimpedanceofaBJTis______.AresistiveBcapacitiveCinductiveDacombinationofresistive,capacitive,andinductive第2題單選題(1分)TheoutputimpedanceofaBJTis______.AresistiveBcapacitiveCinductiveDacombinationofresistive,capacitive,andinductive第3題單選題(1分)Foratwo-portsystem,likeaBJTamplifier,theno-loadvoltagegain_____.AisalwaysgreaterthantheloadedvoltagegainBisalwayslessthantheloadedvoltagegainCisalwaysequaltotheloadedvoltagegainDcanbelessthanorequaltotheloadedvoltagegain第4題單選題(1分)Dependingontheconfigurationoftheamplifier,themagnitudeoftheno-loadvoltagegainforasingleBJTtransistoramplifiertypicallyrangesfrom_______.A10toabout10,000BahundredtoaboutamillionCjustalittlelessthan1toafewhundredDNoneoftheabove第5題單選題(1分)Dependingontheconfigurationoftheamplifier,themagnitudeoftheno-loadcurrentgainforasingleBJTtransistoramplifiertypicallyrangesfrom_____.A10toabout10,000BonetoaboutathousandCjustalittlelessthan1toalevelthatmayexceedonehundredDNoneoftheabove第6題單選題(1分)Determinetheinputimpedanceforthistwo-portnetworkwhenVS=50mV,Ii=20μA,andRsense=500Ω.___A2000ΩB20.0kΩC200.0kΩD2.0MΩ第7題單選題(1分)Theh-parametermodeluses______parameterstodescribetheequivalentcircuitoftheBJTtransistor.AtwoBthreeCfourDfive第8題單選題(1分)Determinetheequivalentvaluesforβandre,giventhefollowingh-parametermodelvaluesforacommon-emitteramplifier:hie=1450kΩ,hoe=17.5μSk,hfe=125,andhree=0.4×10-3.____A17.5μSand0.4×10-3B125and1.450kΩC1.450kΩand17.5μSD0.4×10-3and125第9題單選題(1分)Theapproximationthatallowssuperpositiontobeusedtoisolatetheacanalysisandthedcanalysisofsmall-signalamplifiersisthatthecircuitresponseis_______.Anon-linearBlinearCdclinearandacnon-linearDdcnon-linearandaclinear第10題單選題(1分)A_____isacombinationofcircuitelements,properlychosen,thatbestapproximatetheactualbehaviorofasemiconductordeviceunderspecificoperatingconditions.AcircuitBschematicCmodelDmonolithicIC第11題單選題(1分)Giventhisconfiguration,determinetheinputvoltageifVS=40mV,Rsense=0.5kΩ,andtheinputcurrentis20μA.___A55mB40mVC35mVD30mV第12題單選題(1分)Calculatethevoltagegainforthiscircuit.___A-137.25B-8.4C-7.91D-16.34第13題單選題(1分)Determinetheinputimpedanceforthisamplifiercircuit.___AR1∥R2∥(βre.BR1∥R2C(βre)DCannotbedeterminedfromtheinformationgiven第14題單選題(1分)Thecommon-emitteramplifierhas_______.Avoltagegain,currentgain,andpowergainBvoltagegainandpowergain,butnocurrentgainCcurrentgainandpowergain,butnovoltagegainDcurrentgainandvoltagegain,butnopowergain第15題單選題(1分)Afixed-biasBJTcircuithasvaluesofhFE=200andhfe=120.Theaccurrentgainforthedeviceis______.A200B120C24,000D320第16題單選題(1分)Whichtransistoramplifierconfigurationhasa180°voltagephaseshiftfrominputtooutput?___Acommon-emitterBcommon-collectorCcommon-baseDNoneoftheabove第17題單選題(1分)Thecommon-baseamplifierhas_____.Avoltagegain,currentgain,andpowergainBvoltagegainandpowergain,butnocurrentgainCcurrentgainandpowergain,butnovoltagegainDcurrentgainandvoltagegain,butnopowergain第18題單選題(1分)Forthecascadedamplifiershownhere,theoutputvoltageVo2is_____theinputvoltageVi3.AlessthanBlargerthanCmuchlargerthanDexactlyequalto第19題單選題(1分)Forthecascadedamplifiershownhere,inputimpedanceZi2is_____theloadresistanceforAmplifier1.AlessthanBlargethanCexactlyequaltoDCannotbedeterminedfromtheinformationprovided第20題單選題(1分)Iftheresistorintheemitterlegisnotbypassedbyacapacitorthentheinputimpedanceofthesmallsignalamplifierwill_______.AincreaseBdecreaseCstaythesameDincreaseinsomecasesanddecreaseinothercases第21題單選題(1分)Iftheresistorintheemitterlegisnotbypassedbyacapacitorthenthevoltagegainofthesmallsignalamplifierwill______.AincreaseBdecreaseCstaythesameDincreaseinsomecasesanddecreaseinothercases第22題單選題(1分)Thecommon-baseamplifierischaracterizedashavingarelatively________inputimpedanceandrelatively________outputimpedance.___Alow;highBlow;lowChigh;lowDhigh;high第23題單選題(1分)Ifabypasscapacitoropens,thevalueofre______.AincreasesBdecreasesCremainsthesameDgoestozero第24題單選題(1分)Amplifieracinputandoutputcurrentsare_______.Aalways180°soutofphaseB180°outofphaseinallbutoneamplifierconfigurationCinphaseinallbutoneamplifierconfigurationDalwaysinphase第25題單選題(1分)Amplifieracinputandoutputvoltagesare______.Aalways180°outofphaseB180°outofphaseinallbutoneamplifierconfigurationCinphaseinallbutoneamplifierconfigurationDalwaysinphaseChapter6assignment第1題單選題(1分)ThemaximumcurrentinaJFETisdefinedasIDSSandoccurswhenVGSisequalto_______.AzeroVoltsBpinch-offvoltageCasmallpositivevoltageDavoltagegreaterthanthepinch-offvoltage第2題單選題(1分)Forann-channelJFETIDSS=8mAandVp=-6Volts.IfID=6mA.Whatisthevalueofthegate-to-sourcevoltage,VGS?__A-0.8VB-1.5VC0.1335VD-4.5V第3題單選題(1分)ThedraincharacteristicsforaFETthatyouseeonacurvetraceraredrawnforequalstepincreasesintheVGSvalues,yettheyarespacedfurtherapartasVGSgetsclosertozero.Why?__AThisistrueforonlysomeFETdevices,notall.BThecurvedependsontheFETdeviceused.CDuetothesquarerelationbetweenIDandVGS,asVGSgetsclosertozeroIDincreasesfastersothecurvesarespacedapartfurther.DNoneoftheabove第4題單選題(1分)ThedepletiontypeofMOSFETcanoperateinthe_______.AdepletionmodeonlyBenhancementmodeonlyCinthedepletionmodeandtheenhancementmodeDNoneoftheabove第5題單選題(1分)TheJFETisa_______.Avoltage-controlleddeviceBcurrent-controlleddeviceCfrequency-controlleddeviceDpower-controlleddevice第6題單選題(1分)The______terminaloftheJFFTistheequivalentofthecollectorterminalofaBJT.AgateBdrainCsourceDanode第7題單選題(1分)The_______terminaloftheJFETistheequivalentofthebaseterminalofaBJT.AgateBdrainCsourceDanode第8題單選題(1分)The______terminaloftheJFEI'istheequivalentoftheemitterterminalofaBJT.AgateBdrainCsourceDanode第9題單選題(1分)The_____JFETusesapositivedrainsupplyvoltage.An-channelBp-channelCMDSDCMOS第10題單選題(1分)Thelevelofdrain-to-sourcevoltagewherethetwodepletionsregionsappeartotouchisknownas_______.AthedepletionzoneBchannelestablishmentCpinch-offDchannelsaturation第11題單選題(1分)TheregionofthecharacteristiccurvefamilyforthejunctionFETthatisnormallyusedforlinearamplificationis______.Atheconstant-currentregionBthesaturationregionCthelinearamplificationregionDAlloftheabove第12題單選題(1分)AsthechannelwidthofaJFETdecreases,thesource-to-drainresistance_______.AincreasesBdecreasesCremainsconstantDisnotaffected第13題單選題(1分)Thevalueofdraincurrentisalways_______thevalueoftheshortcircuitdraincurrentIDSSforagivenJFET.AlessthanBequaltoClessthanorequaltoDgreaterthan第14題單選題(1分)CMOSstandsfor______.AcomplementaryMOSBcurrentMOSCcapacitiveMOSDconductiveMOS第15題單選題(1分)Arelativelyhighinputimpedance,fastswitchingspeeds,andlowoperatingpowerdescribethecharacteristicsofthe_______family.ABJTBenhancement-typeMOSFETCVMOSFETDCMOSFET第16題單選題(1分)Forann-channeldepletionMOSFETIDSS=8mAandVP=-6V.IfID=0.0095A,whatisthevalueofthegate-to-sourcevoltage,VGS?__A0.54VB-0.54VC0.1335VD6.54V第17題單選題(1分)Enhancement-typeMOSFETsoperateinthe_______.AdepletionmodeonlyBdepletionmodeandtheenhancementmodeCenhancementmodeonlyDNoneoftheabove第18題單選題(1分)Thecollectorcurrent,IC,ofaBJTflowsthroughtwojunctions.ThedraincurrentofanFET,ID,flowsthrough_______junctions.A0B1C2D3第19題單選題(1分)ManyMOSFETdevicesnowcontaininternal_______thatprotectthesedevicesfromstaticelectricity.ABJTtransistorstobypassthestaticchargeBback-to-backzenerdiodesCcapacitorstocollectandstorethestaticchargeDNothingcanbe