如图所示电源电压保持不变当闭合开关s�动变阻器的�片p�右移动的过程中下列说法正确的是a．电压表v1的示数增大电压表v2的示数减小b Sketch Coloring Page

如图所示电源电压保持不变当闭合开关s�动变阻器的�片p�右移动的过程中下列说法正确的是a．电压表v1的示数增大电压表v2的示数减小b Template

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tomski如图所示电源电压保持不变当闭合开关s�动变阻器的�片p�右移动的过程中下列说法正确的是a．电压表v1的示数增大电压表v2的示数减小b coloring

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甲所示的电路中 电源电压保持不变 为定值电阻 R为�动变阻器。闭合开关S 移动�片P �动变阻器消耗的电功率出卷� 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电源电压9V保持不变当开关闭合时灯泡L1L2均正常�光电压表示数为3V则灯泡L1两端的电压是A．3V B．45V C sketch template

如图电源电压保持不变闭合开关S电路正常工作缓慢移动�片由a到b电压表示数将变小选填“变大 “变小或“不变 继续缓慢移动�片由 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 sketch template

如图a所示的电路中电源电压保持不变闭合开关s后�动变阻器的�片P由B端移动到A端时测得电阻R1两端的电压与通过电阻R1的电流的变化关系 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

题目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所示则可判断电源电压是 sketch template

如图1所示，电源电压保持不变，闭合开关时，�动变阻器的�片P从b端�到a端，电压表示数U与电流表示数I的变化关系如图2所示，下列说法不正确的是 sketch template

如图所示电源电压保持不变当闭合开关S�动变阻器的�片P�右移动的过程中下列说法中正确的是 A电压表V1的示数增大电压表V2的示数 sketch template

如图甲所示电源电压保持不变R1=10Ω．当闭合开关S�动变阻器的�片P从a端移动到b端的过程中两电表示数变化关系用图乙的线段AB表示 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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

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

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

如图所示的电路中电源电压保持不变闭合开关S后�动变阻器的�片P由a端移动到b端时测得电阻R两端的电压U与通过电阻R的电流I的变化关系如 sketch template

如右图所示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．电压表V1示数不变电压表V2示数变大B 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电源电压保持不变当开关S1闭合S2断开时电压表的示数是28V当S1断开S2闭合时电压表的示数为6V则灯L1与L2两端的 sketch template

如图所示电路电源电压保持不变三只电表均完好．开关S闭合后�现只有两个电表的指针�生偏转若电路中只有一个灯泡出现了故障则可能是 A sketch template

如图所示电源电压保持不变闭合开关S当�动变阻器的�片P�右�动时电压表的示数U与电流表的示数I变化情况正确的是 A U变大I变 sketch template

题目如右图所示家庭电路中当开关S闭合后灯泡L不亮用试电笔测试cd两点时氖管都�光测试ab两点时只有a点氖管�光则故障可能 sketch template

如图所示的两个电路中电源电压保持不变闭合开关S当�动变阻器的�片P都�右移动时灯泡LlL2的亮度变化是A．LlL2都变亮B．L1 sketch template

如图所示电源电压保持不变电阻R1＞R2电压表示数分别U1U2电流表A1A2的示数分别为I1I2则闭合开关时下列关系中正确的是 A sketch template

如图所示电源电压保持不变当开关S由断开到闭合时电路中 A 电流表的示数变大小灯泡变亮B 电流表的示数变小小灯泡变亮C 电压 sketch template

如图所示电源电压保持不变当闭合开关S�动变阻器的�片P�右移动的过程中下列说法中正确的是 A．电压表V1的示数增大电压表V2的示 sketch template

如图所示的电路开关闭合后电源电压保持不变．当�动变阻器的�片P�右�动时下列说法错误的是A三个电阻是并联关系B电流表A1示数不变C sketch template

如图所示电源电压保持不变当开关S闭合�动变阻器的�片P�左�动时下列说法正确的是 A．灯L的亮度是更亮了B．电压表V1的示数不变C sketch template

如图所示电源电压保持不变时当�动变阻器�片P�右�动过程中 A．电压表V示数变小 B．电流表A1示数变大 C．电流表A2示数不变D．电流表 sketch template

如图所示的电路中电源两端的电压保持不变闭合开关SS1当�片P 移至�动变阻器R2的A端时电压表V1的示数为U1电压表V2的示数为 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

在如图所示的电路中电源电压保持不变．当电键S由断开到闭合时正确的判断是 A．电压表的示数变小B．电流表的示数不变C．电压表与电流表示数 sketch template

如图所示电路电源两端电压保持12V不变小灯泡L上标有“6V3W 字样�动变阻器最大电阻值R=60Ω．不考�灯丝电阻随温度的变化则下列 sketch template

如图所示的电路中电源两端电压为6V并保持不变定值电阻R1的阻值为100Ω�动变阻器R2的最大阻值为50Ω当开关S闭合�动变阻器的�片 sketch template

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