10．如图12所示当开关s闭合时两个电流表的示数变化情况正确的是 A．两个电流表示数都变大 B．两个电流表示数都变小 C．电流表a1示数不 Sketch Coloring Page

10．如图12所示当开关s闭合时两个电流表的示数变化情况正确的是 A．两个电流表示数都变大 B．两个电流表示数都变小 C．电流表a1示数不 Template

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tomski10．如图12所示当开关s闭合时两个电流表的示数变化情况正确的是 a．两个电流表示数都变大 b．两个电流表示数都变小 coloring

10．如图12所示当开关s闭合时两个电流表的示数变化情况正确的是 A．两个电流表示数都变大 B．两个电流表示数都变小 C．电流表A1示数不 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

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

题目如图所示当开关S闭合后两只灯泡均�光两表均有示数．过一段时间后�现电流表示数增大电压表示数变为0．经检查除小灯泡外其余器材 sketch template

如图4所示当开关S闭合时灯L1L2均不亮某同学用一根导线探究其故障当把导线并接在灯L1两端时�现灯L2亮灯L1不亮当把导线并接在 sketch template

题目如图所示当开关S闭合时灯泡L1L2均不亮．小华同学用一根导线去查找电路的故障．他将导线并接在灯泡L1两端时�现灯泡L2亮灯泡 sketch template

如图（a）所示电路中 当开关S闭合时 电压表V1、V2、V3的示数分别为U1、U2、U3 电流表A1、A2的 出卷� sketch template

在如图所示的电路中电源电压保持不变．当开关S由断开到闭合时电压表的示数与电流表示数将 A．电压表的示数变大电流表示数变小B．电压表的 sketch template

题目如图所示当开关S闭合时两灯均�光电流表A和A1比较的示数较大．�片P�左移动时电流表A的示数填“变大 “不变 或“变小 sketch template

在图14 12所示电路中闭合开关S移动�动变阻器的�片P当电压表的示数为6V时电流表示数为05A当电压表的示数为72V时电流 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

如图所示当开关S闭合后电压表V1 的示数为12V电压表V2的示数为4V那么灯L1两端的电压是 A．12V B．4V C．8VD sketch template

如图所示当开关S闭合后电流表A1A2A3的示数分别为12A1A06A则通过L1L2L3的电流分别是多大 题目和参考答案 sketch template

如图所示的电路当开关S闭合后若电阻R1R2并联则甲表是电压电压表乙表是电流电流表．题目和参考答案——青夏教育精英家教�—— sketch template

如图4a所示电路中当闭合开关后两个电压表指针偏转均为图4b所示则R1与R2两端的电压分别为 A 48V12V B 6V1 sketch template

如图所示开关S3闭合时可能�生的现象是 A．E1�光E2不�光B．E1E2均可�光C．E1不�光E2�光D．电池被烧坏——青夏 sketch template

23．在用实验探究欧姆定律时按如图12所示接好电路接电路时开关应 电流表应联在电路中闭合开关S后调节使R两端电压成倍地变化某 sketch template

如图a所示电路中当闭合开关后两个电压表指针偏转均为图b中所示则灯L2两端的电压为1212伏．一段时间后灯L2的灯丝突然烧断 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当开关S闭合时电流表A1A2A3的示数为12A05A08A则通过灯泡L1L2L3的电流分别是多� 题目和参考 sketch template

在如图所示的电路中开关S闭合时电灯L1和L2是 联的断开开关S电流表的示数 选填“变大 “变小 或“不变 ．并不变 解析 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则电阻R1和R2中的电流分别为 A．12A022AB．098 sketch template

动态电路分析一知乎 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

题目如图甲所示当开关S闭合时两只电流表的指针均如图乙所示则电灯L1中的电流是 A 23 B 046 C sketch template

10．如图12所示当开关s闭合时两个电流表的示数变化情况正确的是 A．两个电流表示数都变大 B．两个电流表示数都变小 C．电流表A1示数不 sketch template

如左图所示的电路中电源电动势为30V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

如图所示的电路中R1=5Ω当开关S闭合时电流表的示数为04A电压表的示数为6V．求�R1两端的电压�通过R2的电流�电源的电压 sketch template

12．如图3所示的电路电源电压不变闭合开关s当�动变阻器的�片P�右�动时关于安培表的示数伏特表的示数小灯泡的亮度以下说法正确的 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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

在图所示的电路中，电源电压不变，闭合开关，电流表A表的示数将，电压表V表的示数将。 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

如图所示当开关S1闭合时电流表的示数为1A开关S1S2同时闭合时电流表的示数为15A．已知电阻R1为20Ω求1电源电压 sketch template

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