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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

百度教育 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

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甲所示电源电压保持不变小灯泡的额定电压为12V�动变阻器的最大阻值为15Ω闭合开关S后当�片P从最右端�左�动过程中电压表的示 sketch template

如图甲所示电路，电源电压保持不变，灯L上标有“6V 3W”字样，电流表量程为0～06A，电压表量程为0～3V．�动变阻器R的最大阻值为60Ω sketch template

13．如图5电源电压保持不变电阻R1＝R2 ＝R3要使电路变为R1R2并联应 闭合开关 此时电流表的示数为I1 要使R2R3 sketch template

如图图所示电源电压保持不变先闭合开关S1电压表示数为U1再闭合开关S2电压表示数为U2电阻R1R2的阻值之比为A U1︰U2 B 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甲所示电路电源电压保持不变．闭合开关S当�动变阻器的�片P从a端�到b端的过程中两个电阻的U I关系图象如图乙所示．则下列判断正确的 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

题目如图甲所示电路电源电压保持不变当闭合开关 S1断开 S2时调节�动变阻器的�片从最右端�至最左端时电流表与电压表示数的关系 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1所示电源电压保持不变当闭合开关S�动变阻器�片P从a端移到b端两电表示数变化关系用图2线段AB表示．根据图中相关信息求1 sketch template

题目如图所示电源电压保持不变闭合开关S电压表和电流表均有示数再闭合开关S1则下列说法正确的是 A电流表示数变大电压表示数 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

如图所示电源电压保持不变R1=10Ω．当闭合开关S�动变阻器�片P从a端移到b端两电表示数变化关系用图线段AB表示．求1电源电压 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当闭合开关后�动变阻器的�片�左移动的过程中 A电流表示数变小电压表示数变大灯泡变亮 B电流表示数 sketch template

如图所示电路电源电压保持不变．当开关S闭合时�动变阻器的�片在由中点�右�动过程中下列说法正确的是 A．电压表V示数变大B．电流表 sketch template

如图甲所示电源电压保持不变小灯泡的额定电压为12V．闭合开关S后当�片P从最右端�到最左端的过程中小灯泡的I U关系图象如图乙所示．则 sketch template

题目如图所示电源电压保持不变闭合开关后当�动变阻器的�片由左�右移动时下列判断正确的是A 电压表示数变大B 电流表示数变大C 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

在如图所示的电路中电源电压保持不变闭合开关S当�动变阻器的�片�右移动时则 A．电压表的示数变大B．电流表的示数变大C．电阻R的功率不 sketch template

如图所示电路电源电压保持不变．闭合开关S当�动变阻器的�片P从a端�到b端的过程中两个电阻的U I关系图象如图所示．则下列判断正确的是 sketch template

如图甲所示电路中，电源电压不变，电流表的量程为006A，电压表的量程为015V，灯泡L的额定电压为4V。第一次只闭合开关S、S1 ， � sketch template

在如图所示的电路中电源电压不变．开关S闭合后移动�片P改变�动变阻器接入电路的阻值使电压表的示数从6V变化到2V同时观察到电流表的示 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甲所示电路中电源电压保持不变初始时�动变阻器的�片P在最右端但由于�动变阻器某处�生断路合上开关后�片P�左�过一段距离后电流表才 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�片P从a端移到b端两电表示数变化关系用图乙线段AB表示．求1电源 sketch template

如图所示电源电压保持不变开关S闭合后当�动变阻器的�片P�左移动时下列说法正确的是 A．电流表的示数变大B．电压表的示数不变C sketch template

如图所示电源电压保持不变．当开关S闭合后�动变阻器�片P从右端移�左端时 A．A表读数变小V1表读数变大V2表读数变大B．A表读数 sketch template

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