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1、交变电流复习备课人：姜冬成日期：2008年1月16日一．高考要求内容要求说明交变电流描述交变电流的物理量和图像I相位的概念不作要求正弦交变电流的函数表达式I电容电感对交变电流的影响I变压器I电能的输送I二．知识结构交直流的区别线圈平面与磁场方向的夹角与电流大小关系交变电流的产生一个周期内电流方向变化变化次线圈中电流为0时，磁通量，线圈中电流最大时，磁通量表达式e=Emsinωt周期频率交变电流描述交变电流的物理量峰值有效值电容电容电感对交流电路的影响电感构造变压器电压关系原理电流关系多个副线圈远距离输电三．知识点一、交变电流他为分公司培养出了鲁付凯
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5、hthepeoplesuffered.ButremotenessalongtheTaihuLake,anumberofsporadicanti-Japaneseguerrillainthelocalactivities.AfterthefallofsongLingZhen,WujiangCountyGovernmentmovedinTombinNanXiangZhangAocun,amarketstoodinthevicinityofthetemple.ChangShenLiqun,shengzepersonSecretaryandsectionch
6、iefShenZhian,zhenzewhoNiuXiqing,theChiefofthesecondsection,grave;theCountyEducationBureauDirectorZhaoZiquan;theCountyPartySecretaryZhouShihong;armedstandingdirectlyunderCaptainHuangJun.Alsoappointeddistricthead,flowworkingseparatelyineachcountry.April1939senttoMrShenZhian,about
7、meetingIwenttopierofFame,rankwaszhenzepoemfieldprimaryschool,laterYuyinghighschoolCouncil,morefamiliarinthepastandliked,soIgladlyobey.Rankwantsmeintheretohelpdosomepaperwork,andChangShenLiqun,torecommend,soIwasappointedasthefirstclerkinchargeofrelevantwrittenworkineducation.Cou
8、ntyGovernmentdepartmentsthestaffscatteredaroundthefarm
