如图 甲所示当开关闭合时两灯均�光电流表a 与ai 的指针位置均为图 乙所示的刻度那么 L 电流表a A1读数是多� 2 Sketch Coloring Page

如图 甲所示当开关闭合时两灯均�光电流表a 与ai 的指针位置均为图 乙所示的刻度那么 L 电流表a A1读数是多� 2 Template

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sketch #5313 Katy Perry by Monalisa Theresia

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tomski如图 甲所示当开关闭合时两灯均�光电流表a 与ai coloring

如图2所示电路，当开关S闭合后，L1、L2均能�光，电流表、电压表均有示数．过一会儿，两灯都不�光．电流表、电压表的示数均为零，可能�生的故障 sketch template

18．如图7所示电路中当开关S1S2均闭合时A1的示数是0．32AA2的示数是0．56A A3的示数是这是因为 A4的示数是 sketch template

如图所示是小明同学研究串联电路中电流电压特点的实物连接图当开关闭合时灯L1不亮灯L2亮电流表的指针明显偏转电压表示数为电源电压 sketch template

如图甲所示 当开关闭合时 电流表测量的是通过（填“L1”、“L2”或“L1和L2”）的电流。两个灯泡的连接方式出卷� sketch template

1如图甲所示电路中要使灯L1和L2连接成并联电路应闭合S2S3同时断开开关S1要使两灯连接成串联电路应闭合开关S1同时断开开关 sketch template

如图所示当开关S闭合时�现只有一灯�光且电压表示数为45V产生这一现象的原因可能是 A灯L1断路 B灯L1短路 C灯L2 sketch template

如图甲所示的电路中电源电压恒定．闭合开关S后�动变阻器的�片P由一端移到另一端时测得其中一电压表示数U与电流表示数I的变化关系如图乙所示 sketch template

如图 甲所示当开关闭合时两灯均�光电流表A 与AI 的指针位置均为图 乙所示的刻度那么 L 电流表A A1读数是多� 2 sketch template

如图所示当开关S闭合时电流表A1A2的示数分别为I1I2则 I1I2的大小关系是AI1=I2BI1＞I2CI1＜I2D无法 sketch template

如图所示的电路中当开关S闭合甲乙两表为电压表时两表读数之比U甲U乙为31当开关S断开甲乙两表为电流表时两表的读数之比I甲 sketch template

20．如图14在甲图中当开关S闭合时电流表A1的示数为06A电流表A2的示数为04A则灯L1中通过的电流为 AL2通过的电流为 sketch template

28．在图所示“组成串联电路的实验中当开关S闭合后灯L1L2均不亮某同学用一根导线去查找电路的故障他将导线先并接在灯L1两端时 sketch template

题目探究“并联电路中电流的关系电路图如图甲要求闭合开关后灯泡L1L2并联开关S控制所有用电器电流表A1测流过干路的电流A2 sketch template

如图所示电路甲乙丙分别是电流表或电压表当开关S闭合时灯L�光．现把变阻器的�片P�右移动则甲乙丙三个表的示数变化情况分别是A sketch template

如图所示当开关S闭合后两灯泡和各电表都能正常工作则下列关于甲乙丙是电流表还是电压表的说法中正确的是 A．甲丙是电流表乙是电压 sketch template

如图所示当开关S闭合甲乙两表均为电压表时两表示数之比U甲U乙=31当开关S断开甲乙两表均为电流表两表示数之比I甲I乙 sketch template

如图所示当甲乙两表为电压表时闭合开关S两表的示数之比为U甲U乙为41当甲乙两表为电流表时开关S断开两表的示数之比为I甲I sketch template

如图所示电路开关S1闭合后S2的断开与闭合使电流表A2的两次示数之比为35由此可知R1与R2的阻值之比为23S2断开再闭合的过程 sketch template

如图8所示当开关闭合时电流表 A的示数为开关同时闭合时电流表 A的示数为已知电阻求1电源的电压2电阻的大小3 sketch template

如图所示电路闭合开关两灯均�光电压表和电流表均有读数后来两灯突然熄灭这时电压表和电流表读数均为零则故障可能是 A 灯L1开路 sketch template

如图所示的电路中当开关S闭合时 A．只有灯L1能�光B．只有灯L2能�光C．两灯都能�光D．两灯都不能�光题目和参考答案——青夏教育 sketch template

如图所示电路中甲乙两处分别接入电流表或电压表．当S闭合后为使两灯均能�光则 A．甲接入电流表乙接入电压表B．甲乙均接入电流表C sketch template

如图所示电路中甲乙两处分别接入电流表或电压表当S闭合后为使两灯均能�光则 A 甲接电流表乙接电压表B 甲乙均接电流表C sketch template

如图所示电路中甲乙丙为电流表或电压表．闭合开关S后若小灯泡L1L2均能�光．则A甲为电流表乙丙为电压表B乙为电流表甲丙为 sketch template

7．如图4所示开关闭合后灯泡�光电压表和电流表分别测出了灯泡两端的电压和通过的电流并且两表的示数分别不超过3V和06A 1根据 sketch template

小明同学按照如图所示的电路进行实验探究两个灯的规格相同．当开关闭合时其中一个灯亮一个灯不亮电压表有示数．如果只有一处故障则 灯亮选 sketch template

如图所示电路中开关S闭合时下列判断正确的是 A．两灯都变暗B．两灯都变亮C．A灯变暗B灯变亮D．A灯变亮B灯变暗题目和参考答案 sketch template

在如图甲所示的电路中当闭合开关后两个电流表指针偏转均为图乙所示则通过电灯L1和L2的电流分别为 A．17A 034AB．1 sketch template

如图甲所示两灯泡L1L2在盒内的连接方式未知电源不变．开关闭合后两灯均�光电流表读数为045A．若把L1取下L2仍�光电流表读数 sketch template

如图所示甲乙为两个电表闭合开关s后灯泡L1L2均正常�光则 A甲是电压表乙是电流表B甲是电流表乙是电压表C甲乙都是 sketch template

如图所示电路 当闭合开关时 灯 L1和 L2串联；当闭合开关时 灯L1和 L2并联；从安全角度考� 不能同时闭出卷� sketch template

如图所示电路中甲乙两处分别接入电流表或电压表当S闭合后为使两灯均能�光则A．甲接电压表乙接电流表B．甲乙均接电压表C．甲乙均接 sketch template

如图所示电源电压不变当开关S1S2同时闭合时电流表的示数是03A电压表示数是6V．若两表互换位置当开关S2闭合S1断开时电流 sketch template

如图所示电路中甲乙两处分别接入电流表或电压表当S闭合后为使两灯均能�光则 A．甲接电压表乙接电流表B．甲乙均接电压表C．甲 sketch template

23． 如图14甲所示小灯泡L1和L2 额定电压均为6VAB分别为L1 和L2中的电流随两端电压变化关系的曲线现将两灯连入图乙所示 sketch template

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