13．如图4所示电源电压和灯泡电阻都保持不变当�动变阻器的�片p由中点�右移动时下列判断不正确的是 A．电流表和电压表的示数都增大 b Sketch Coloring Page

13．如图4所示电源电压和灯泡电阻都保持不变当�动变阻器的�片p由中点�右移动时下列判断不正确的是 A．电流表和电压表的示数都增大 b Template

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tomski13．如图4所示电源电压和灯泡电阻都保持不变当�动变阻器的�片p由中点�右移动时下列判断不正确的是 a．电流表和电压表的示数都增大 b coloring

百度教育 sketch template

13．如图4所示电源电压和灯泡电阻都保持不变当�动变阻器的�片P由中点�右移动时下列判断不正确的是 A．电流表和电压表的示数都增大 B sketch template

13．如图甲所示为一个小灯泡的两端电压与通过它的电流的变化关系曲线 1若把三个相同这样的灯泡串联后接到电压恒定的12V电源上求流过小 sketch template

如图甲所示是“测定小灯泡电功率”实验的装置图，电源电压为4V且保持不变，小灯泡额定电压为25V，阻值约为9Ω，�动变阻器标有“20Ω 1A”字样。 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

百度教育 sketch template

如图甲所示是小明“探究电流与电压、电阻的关系”的实验电路图。选用的实验器材是：电源3V、电流表（00 6A）、出卷� 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

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

题目2016·厦门卷如图所示R1=25Ω小灯泡L的规格为“2．5V 0．3A 电源电压保持不变1S1S2都断开时小灯泡 sketch template

题目如图所示电源电压不变L1L2两个灯泡的规格相同闭合开关S当�动变阻器的�片P都从中点�右�动的过程中关于两灯的亮度情况 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

题目如图所示电源电压保持不变灯泡L标有“6V 6W 字样当S和S1都闭合时电压表示数为10V当闭合S断开S1时灯泡L正常�光 sketch template

题目如图所示的U I图象中直线Ⅰ为某电源的路端电压与电流的关系图线直线Ⅱ为某一电阻R的U I图线用该电源直接与电阻R连接成闭合电路 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1甲电路所示电源电压为9V且保持不变小灯泡标有“6V6W 的字样小灯泡的电流随电压的变化曲线如图乙．1当电流表的示数为05A sketch template

“探究电流与电阻关系”的实验实物图如图甲所示，定值电阻的阻值分别为5Ω、10Ω、15Ω、20Ω。（1）连接电路时�现，电路中有一根导线连接错误 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

题目如图所示电源电压恒定闭合开关L1L2两灯均正常�光电流表和电压表均有示数过一会儿其中一只灯泡突然熄灭两个电表示数均不变 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

题目小明用如图甲所示电路测量小灯泡的电功率电源电压恒定不变小灯泡额定电压为25V1请用笔画线代替导线将图甲中的电路连接完整 sketch template

小明利用如图1所示的实验器材“测定小灯泡的额定功率已知电源电压均为6V小灯泡的额定电压25V电阻约为10Ω．1实验原理是 ．2 sketch template

在如图甲所示的电路中当闭合开关后两个电压表的指针偏转均为图乙中所示则电源和R1两端的电压分别为 V和 V．题目和参考答案——青夏教育 sketch template

中考物理知识点：测量小灯泡的电阻 欧姆定律中考� sketch template

小敏用如图甲所示的电路图研究通过导体的电流与导体电阻的关系电源电压恒为6V改变电阻R的阻值调节�动变阻器�片保持R两端的电压不变记 sketch template

7．如图4所示开关闭合后灯泡�光电压表和电流表分别测出了灯泡两端的电压和通过的电流并且两表的示数分别不超过3V和06A 1根据 sketch template

小强用电压表串联电路中灯泡两端的电压如图甲所示．电压表测的是灯 电压填“L1 或“L2 ．此时电压表示数如图乙所示电压表读数是 V sketch template

某同学在做“调节灯泡亮度 的电学实验时电路如图所示电源电压恒为45V电压表量程“0 3V �动变阻器规格“20Ω L A 灯泡L标 sketch template

电路如图题342所示，电源vs为正弦波电压，试绘出负载RL两端的电压波形，设二极管是理想的。上学吧找答案 sketch template

如图8所示电源电压12V电阻R阻值为2Ω电压表所选量程为 0 3V为了不损坏电压表变阻器凡的阻值应 A不高于2Ω B 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

为了“测量小灯泡的电功率”，某小组同学设计了如图甲所示的电路图，已知小灯泡上标有“25V”字样。请回答下列问题： 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

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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

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