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1、电学：电荷：丝绸+玻璃棒=>正电荷毛皮+橡胶棒=>负电荷相关数据：电流：单位时间内通过导体截面积的电(荷)量.电荷量：Q单位：库仑[C]电流:I单位：库每秒=>安培[]电压：电压是推动电荷定向移动形成电流的原因，有电压不一定有电流，有点流一定有电压。电阻：导体本身的性质电阻率：长1m截面积为1mm2的某种材料的电阻相关公式：欧姆定律：焦耳定律：电功：单位：焦(耳)、千瓦时<度>[]电功率：单位：焦(耳)每秒=>瓦(特)[]电路：串联电路:（皆成正比）①otherstaffoftheCentre.D
2、uringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOffice
3、oftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand②③④分压原理：串联电路中，电压与电阻成正比(正比分压)⑤串联电路中，实际功率跟电阻成正比⑥串联电路中，电功及电流做功产生的热量与电阻成正比并联电路：(皆成反比)①②
4、③④分流原理：并联电路中，电流与电阻成反比(反比分流)⑤并联电路中，实际功率跟电阻成反比⑥并联电路中，电工及电流做功产生的热量与电阻成反比已知一个电灯的铭牌：其中：PZ是指普通照明灯；220V是额定电压；40W是额定电功率。当实际电压为额定电压一半时,实际功率为额定功率的.电能表相关数据:其中：220V表示工作时的电压；5A表示可允许通过的最大电流；otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirect
5、orofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,Shenmufugu
6、SARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand表示每消耗1千瓦时的电能,电能表的表盘转动300转=>若已知电能表转数求：电功：电功率：otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOffice
7、inJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,Dire
8、ctorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand
