如图所示的电路当电路闭合后电流表a1的示数如图所示a2的示数如图所示．1请写出流过电灯l2的电流和干路中电流大小并说明判断依据 Sketch Coloring Page

如图所示的电路当电路闭合后电流表a1的示数如图所示a2的示数如图所示．1请写出流过电灯l2的电流和干路中电流大小并说明判断依据 Template

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tomski如图所示的电路当电路闭合后电流表a1的示数如图所示a2的示数如图所示．1请写出流过电灯l2的电流和干路中电流大小并说明判断依据 coloring

如图所示，电源电压恒为18V，定值电阻R1=20Ω，�动变阻器R2标有“40Ω 05A”，电流表A的量程为006A，电压表量程为0 sketch template

如图甲所示的电路当开关S闭合后两电流表的指针偏转如图乙所示其中电流表A1测量的是通过L1和L2选填“L1 “L2 或“L1和L2 sketch template

在如图所示的电流表中电流表A1的示数为05A电流变A2的示数为02A电流表A3的示数为04A求1A的示数为多�2 sketch template

如图所示的电路闭合开关后两电流表示数如表盘指示位置相同则L1的电流为03AL2的电流为12A灯L1损坏时灯L2能正常�光 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．17A 034AB．1 sketch template

第一讲 电路的基本概念和基本定律 sketch template

如图甲所示是小明“探究电流与电压、电阻的关系”的实验电路图。选用的实验器材是：电源3V、电流表（00 6A）、出卷� 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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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

2闭合电路的欧姆定律 sketch template

在如图所示的电路中，电源电压保持不变，定值电阻R1的阻值为10Ω，�动变阻器R2上标有“2A”字样。闭合开关S，移动�片P至电路中的电流最大 sketch template

如图甲的电路中，电源电压保持不变，闭合开关后，�片P由b端移到a端，电流表示数I与电压表示数U的变化关系如图乙，则可判断电源电压是 V，定值 sketch template

百度教育 sketch template

如图甲所示的电路中电源电压恒定不变R2=30Ω通过R1的电流随它两端电压变化关系如图乙所示则下列计算正确的是A．R1的阻值大小是 sketch template

“探究电流与电阻关系”的实验实物图如图甲所示，定值电阻的阻值分别为5Ω、10Ω、15Ω、20Ω。（1）连接电路时�现，电路中有一根导线连接错误 sketch template

如图所示的电路中闭合开关后三个电流表A1A2A示数分别为I1I2I已知I=06AI1=04A则通过灯L2的电流是多�安 sketch template

如图所示的电路中，电源电压保持不变。闭合开关S后，�片P从b端移动到a端的过程，电压表示数U与电流表示数I的关系图像如图所示。下列说法正确的是（ sketch template

人教版物理九年级上第十七章第二节细化知识点同步练习——欧姆定律的图像问题（1）在线组卷 sketch template

闭合电路的动态分析 Word文档在线阅读与下载免费文档 sketch template

如图1所示的电路中R1为定值电阻R2为�动变阻器电源电压不变．闭合开关S后�片P从a端移动到b端电流表示数I与电压表示数U的变化关系 sketch template

在如图甲所示的电路中电源电压为6V保持不变当闭合开关后两个电流表指针偏转均为图乙所示则电阻R1和R2的阻值各为多�——青夏教育精英家教�—— sketch template

如图所示电路三个电阻的阻值都是R0当开关闭合时电流表A1A2A3的读数分别为I1I2I3则它三者的关系是 A．I3＝I2 B sketch template

如图所示的电路当电路闭合后电流表A1的示数如图所示A2的示数如图所示．1请写出流过电灯L2的电流和干路中电流大小并说明判断依据 sketch template

如图所示的电路中电源的电压保持不变R1为定值电阻R2为�动变阻器闭合开关S�片P�右移动时则A．电流表A的示数变大B．电压表V的示 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

如图所示的电路中开关S闭合后电压表VlV2的示数分别为12 V和4 V电阻R2=20Ω求电阻R1的阻值和电流表A的示数分别为多� sketch template

两个定值电阻R1、R2并联在电路中如图甲所示它们的电流与其两端的电压关系如图乙所示闭合开关S则R1R2产生的热量之比为 A sketch template

在图所示的电路中电源电压不变闭合电键S当�动变阻器的�片P�右移动时电流表A的示数将电压表V1与电流表A示数的比值将均选填 sketch template

如图所示电路电源电压U不变当开关S1S2S3都闭合时电路处于选填“断路 “短路或“通路状态若只闭合开关S2小灯泡L1 sketch template

如图所示的电路R1=30ΩR2=10Ω开关S闭合后电流表A的示数为04A求R1两端的电压U1通过R2的电流I2和总电流I．题目 sketch template

如图所示两电流表所用量程不明当电路闭合后电流表A1的示数如图甲所示电流表A2的示数如图乙所示则流过电灯L2的电流为多�——青夏教育 sketch template

如图所示两电流表所用量程不明当电路闭合后电流表A1的示数如图甲所示电流表A2的示数如图乙所示则流过电灯L2的电流为多�——青夏教育 sketch template

如图所示电路中电源电压保持不变闭合开关S后将�动变阻器R2的�片P�右移动在此过程中 A．电流表A示数变大电压表V2示数变小B．电流 sketch template

12．在如图所示的电路中电源电压恒定为U电键闭合后将�动变阻器R2的�片P�左�动时电路中的小灯泡L1L 2和L 3的亮度变化情况是 sketch template

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