3．如图所示电路闭合开关后比较abcd四处电流的大小其中正确的是 A．ia＝id B．ia＜ib C．ib＞ic D．ic Sketch Coloring Page

3．如图所示电路闭合开关后比较abcd四处电流的大小其中正确的是 A．ia＝id B．ia＜ib C．ib＞ic D．ic Template

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tomski3．如图所示电路闭合开关后比较abcd四处电流的大小其中正确的是 a．ia＝id b．ia＜ib coloring

3．如图所示电路闭合开关后比较abcd四处电流的大小其中正确的是 A．Ia＝Id B．Ia＜Ib C．Ib＞Ic D．Ic 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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

如图所示的电路中闭合开关S后比较abcd四处电流大小其中不正确的是 A．Ia＞IbB．Ia=IdC．Ia＞IdD．Id＞Ic sketch template

如图所示的电路中闭合开关S后比较abcd四处电流大小其中不正确的是 A．Ia＞IbB．Ia=IdC．Ia＞IdD．Id＞Ic sketch template

如图所示电路图闭合开关S后电流表A1的示数为03A则电流表A2的示数为0303A通过灯L1的电流为0303A通过L2的电流 sketch template

题目如图所示的电路中电源电压恒为3V灯泡L1标有“3V 3W L2标有“6V 的字样电流表的量程为0 06A电压表的量程 sketch template

如图所示开关s闭合后三个灯泡属于并联的电路是 A．B．C．D．——青夏教育精英家教�—— sketch template

题目如图所示的电路中电源电压为 6V且保持不变�动变阻器 R 的规格为“40Ω 1A 定值电阻 R1的规格为“10Ω 05A 只 sketch template

如图2所示的电路中电源电压不变开关闭合后若�动变阻器的�片P�右端移动则 A电压表的示数和电流表的示数都增大 B电压表的示数和电流 sketch template

如图所示的电路中闭合开关S后电流表A1的示数为02A电流表A2的示数为08A此时电阻R1和R2消耗的功率之比是31．题目和 sketch template

如图所示电路中电源电压恒为12V电流表A1A2的量程分别为06A3A�动变阻器R2标有“2A 50Ω 字样将�动变阻器�片P调到 sketch template

如图所示的电路中若要使灯L1和L2组成并联电路应闭合开关 应断开开关 A．S2S3S1B．S1S3S2C．S1S2S3——青 sketch template

如图所示电路中闭合开关S将�动变阻器的�片P由a端�到b端的过程中A电流表的示数逐渐减小B电压表的示数逐渐增大C小灯泡的亮度越来越暗 sketch template

如图所示电路闭合开关后电压表V1的示数为3V那么电源电压为3V．题目和参考答案——青夏教育精英家教�—— sketch template

如图所示电路中电源电压适当要使电铃和电灯同时有电流通过以下做法中正确的是A．闭合S2断开S1S3 B．断开S3闭合S1S2 C sketch template

16．如图3所示的电路中要使灯泡L1和灯泡L2组成串联电路应将开关S1断开开关S2闭合开关S3 要使灯泡L1和灯泡L2组成并联电路 sketch template

如图所示的电路中电源电压保持不变R为定值电阻当开关闭合时标有“6V 3W 的小灯泡L恰好正常�光若保持R不变将L换成另一只标有 sketch template

如图所示的电路下列说法中正确的是 A．当S1S3断开S2闭合时L1与L2串联B．当S2断开S1S3闭合时L1与L2并联C．当 sketch template

如图所示电路中当开关S闭合后要使电阻R1R2串联甲乙应该接入的是 A．甲接电压表乙接电流表B．甲接电流表乙接电压表C．甲乙 sketch template

在如图所示的电路中电源电压保持不变下列说法正确的是 A．只闭合开关S1变阻器�片�左移动时电压表V1无示数电压表V2与电流表A示 sketch template

如左图所示的电路中电源电动势为30V内阻不计L1L2L3为3个相同规格小灯泡这种小灯泡的伏安特性曲线如右图所示．当开关S闭合后 sketch template

如图3所示电路电源电压保持不变开关S闭合后灯L能够�光当�片P�右�动的过程中下列判断中错误的是 A灯L变亮电压表V示数变大 B sketch template

如图所示的电路图以下判断正确的是 A．S1S2都断开时三个灯泡串联B．S1S2都闭合时三个灯泡并联C．S1闭合S2断开时只有 sketch template

如图8所示的电路电源电压保持不变闭合开关S调节华东变阻器两电压表的示数随电路中电流变化的图线如图9所示根据图线的信息可知 是电压 sketch template

2闭合电路的欧姆定律 sketch template

如图所示电路中要使灯泡AB与电源组成串联电路应闭合开关S2S2灯A和灯B的电流大小相等相等．若要使灯AB与电源组成并联电路应闭合 sketch template

在如图所示的电路中电源电压保持不变电阻R1 的阻值为20Ω闭合开关S电流表A1的示数为03A电流表A 的示数为05A．求1 sketch template

10．如图所示电路中L为一自感线圈两支路电阻相等则 A．闭合开关S时稳定前电流表A1的示数小于电流表A2 的示数 B．闭合开关S时 sketch template

闭合电路的一部分导体或磁铁的运动方�如图所示下列各电路中能产生感应电流的是A．B．C．D．——青夏教育精英家教�—— sketch template

如图所示电路要使灯泡L1和L2组成串联电路应该 A．只闭合S3B．只闭合S2C．同时闭合S1和S2D．同时闭合S1和S3——青夏教育 sketch template

图示电路中，在开关S闭合前电路已处于稳态。当开关闭合后，（）。简答题试题答案 sketch template

20．在如图所示电路中闭合电键S当�动变阻器的�动触头P�下�动时四个理想电表的示数都�生变化电表的示数分别用IU1U2和U3表示 sketch template

在如图所示的电路中电源两端电压保持不变下面有关这个电路的说法中正确的是 A．断开开关S2S3闭合开关S1时电流表A1A2的示数 sketch template

如图所示的电路中电源电压保持不变．当�动变阻器的�片P�右�动时 电流表和电压表的示数变化情况是 A．电流表和电压表的示数都变大 sketch template

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