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

第一讲 电路的基本概念和基本定律 sketch template

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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

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

2闭合电路的欧姆定律 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

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当开关S闭合后电流表A1A2A3的示数分别为12A1A06A则通过L1L2L3的电流分别是多大题目和参考答案 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

如图所示的电路中电源的电压不变灯L3的阻值为10Ω当闭合开关S后电流表的示数为1A电压表的示数为2V过一段时间后电压表示数为6V 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

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当开关S闭合后电流表A1的指针偏转了量程的电流表A2偏转了量程的所用的电流表为实验室用的双量程电流表求1通过灯泡 sketch template

如图所示的电路中当开关S1闭合后电流表A的读数为04 A当开关S2闭合后电流表A偏转了量程的5/6所用电流表为实验室用的双量程电流 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闭合开关后A1A2A3三个电流表的示数分别为I1I2I3已知I3=05AI1=03A则通过电灯L2的电流 sketch template

如图所示电路电源电压不变当开关S闭合S1与S2断开时电流表示数为I1电压表示数为U1当开关SS1S2都闭合时电流表示数为I2 sketch template

如图所示当开关S闭合时电流表A1A2A3的示数为12A05A08A则通过灯泡L1L2L3的电流分别是多� 题目和参考 sketch template

如图所示电路电源电压不变当开关闭合时�动变阻器的�片�右移动下列判断错误的是 A电流表A1的示数不变 B电压表V的示数不变C 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将电流表先后串联在abc处当开关闭合后电流表的读数 A．在a处最大B．在b处最小C．在c处最大D．三处都一样——青 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

如图所示的电路中开关S闭合后电流表A的示数为15A电流表A1的示数为08A电流表A2的示数为12A则通过L2的电流为 A通过 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当闭合开关S时以下说法正确的是 A．电路中的总电阻不变 B．电路中的总电阻增大 C．灯L变亮 D．灯L变暗——青夏教育 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

如图所示的电路中电源电压是6V开关闭合后电流表A1和A2的示数分别为02A和03A则电阻R1和R2的阻值各是多�——青夏教育精英 sketch template

如图所示电路当开关S由断开到闭合时各电表的示数变化正确的是 A．电流表示数不变电压表示数变大B．电流表示数变小电压表示数不变C sketch template

如图所示的电路中R1＞R2开关闭合后电流表A2的示数为02A则电流表A1的示数 选填“大于 “小于或“等于 04A．题目和 sketch template

如图所示的电路电源电压恒定不变闭合开关S将�动变阻器的�片P�右移动的过程中下列说法正确的是A．电流表示数变大 B．电压表示数变大 C sketch template

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