浙江大学大学物理甲下 04-05冬期末试卷

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1、浙江大学2004-2005学年冬季学期《Physics（Ⅱ）》课程期末考试试卷开课学院：理学院考试形式：闭卷，允许带非存储计算器、纸质词典入场考试时间:2005年1月21日所需时间120分钟姓名_______专业学号组号任课教师题序一二三四五六七八总分得分评卷人Planckconstanth=6.63´10-34J×sChargeofanelectrone=1.6´10-19CPermittivityconstante0=8.85´10-12C2/(N×m2)Electronicvolt1eV=1.6´10-19JPer

2、meabilityconstantm0=4p´10-7H/mMassofanelectronme=9.11´10-31kgⅠ.Multiplechoices(thereisonecorrectansweronly):1.TheelectricchargeonaconductorisA.Uniformlydistributedthroughoutthevolume.B.Confinedtothesurfaceandisuniformlydistributed.C.Mostlyontheoutersurface,butisnot

3、uniformlydistributed.D.Entirelyonthesurfaceandisdistributedaccordingtotheshapeoftheobject.E.Distributedthroughoutthevolumeoftheobjectanddistributedaccordingtotheobject’sshape.2.*Youaregivenaclosedcircuitwithradiiaandb,asshownintheFig.,carryingcurrenti.Themagneticdi

4、polemomentofthecircuitis:A..B.C..D...Page7of73.Aparallelplatecapacitorisattachedtoabatterythatsuppliesaconstantpotentialdifference.Whilethebatteryisstillattached,theparallelplatesareseparatedalittlemore.Whichstatementdescribeswhathappens?.A.Theelectricfieldincrease

5、sandthechargeontheplatesincreases.B.Theelectricfieldremainsconstantandthechargeontheplatesincreases.C.Theelectricfieldremainsconstantandthechargeontheplatesdecreases.D.Boththeelectricfieldandthechargeontheplatedecreases.4.4.AwirecarriescurrentasshownintheFig.Pointc

6、harge1and4moveinthedirectionsindicated.Ifthemagneticforcesoncharges1and4areequalandtheirvelocitiesareequal,A.Thechargeshavethesamesignand.B.B.Thechargeshaveoppositesignand.C.Thechargeshavethesamesignand.D.Thechargeshaveoppositesignand.5.5.Displacementcurrentexistsi

7、ntheregionbetweentheplatesofaparallelplatecapacitorif:A.thecapacitorleaks(泄漏)chargeacrosstheplatesB.thecapacitorisbeingdischargedC.thecapacitorisfullychargedD.thecapacitorisfullydischargedE.noneoftheabovearetrue6.TheintensitypatternasshowninFig.isdueto.A.twoslitsB.

8、asingleslitC.agratingD.acircularapertureE.noneofabove7.TheFermienergyofcopperat0KrepresentsA.theaverageenergyoftheelectrons.B.theenergynecessaryt