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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tomski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 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

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

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

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

如图所示的自动控制电路中当开关S闭合时工作电路的情况是 A 灯亮电动机不转动电铃响B 灯亮电动机转动电铃响C 灯不亮 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

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

如图所示当开关S闭合�动变阻器的�片P由右端�左��中点处的过程中 A 电压表V的示数变小电流表A2示数变大B 灯泡变亮电流表 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

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

1．如图1所示当闭合开关S后通电螺线管Q端附�的小磁针N极转�Q端则 A．通电螺线管的Q端为N极电源a端为正极 B．通电螺线管 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

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

如图所示当开关S闭合后下列说法正确的是 A．灯L1与灯L2是并联的B．电压表可测出灯L1两端的电压C．电流表A1测的是灯L1的电流D 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

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

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S1S2都闭合时则 A．三盏灯串联且都能�光B．三盏灯并联且都能�光C．只有灯L1�光D．灯L1L2�光题目和 sketch template

如图所示闭合开关S如果A1示数为05AA2示数为04AA3示数为07A则通过灯L1L2L3的电流为多�A 题目和参考答案 sketch template

如图所示的电路中R1=3ΩR2=6ΩR3=15ΩC=20μF当开关S断开时电源所提供的总功率为2W当开关S闭合时电源所提供的 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12甲所示，电源电压U=18V，闭合开关，通过R1的电流为3A．另将R1与R2=12的电阻串联后接在原来的电源上，如图12乙所示 求 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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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则电阻R1和R2中的电流分别为 A．12A022AB．098 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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

在“用电流表测电流 的实验中某同学接成如图5a所示的电路当开关闭合后两灯都�光两个电流表的指针所指位置均为图5b所示则通过灯 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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，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

如图所示当两个开关都闭合后两盏灯都能�光的电路是 A．B．C．D．——青夏教育精英家教�—— sketch template

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