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

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

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

一轮复习：描绘小灯泡伏安特性曲线知乎 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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1所示的电路中电源电压不变小灯泡的额定电压为25V图2是该小灯泡I U图象变阻器的最大阻值R为30Ω．闭合开关S当�片P置于某 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

一轮复习：描绘小灯泡伏安特性曲线知乎 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所示的电路中R1为定值电阻R2为�动变阻器电源电压不变．闭合开关S后�片P从a端移动到b端电流表示数I与电压表示数U的变化关系 sketch template

小明用如图1所示的电路图测小灯泡电阻．已知电源电压3V待测小灯泡额定电压为25V猜想电压表示数电流表示数灯泡断路灯泡短路1当开关 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

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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

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

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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．45V C 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

如图所示为了测量电源的电动势将电压表V1V2串联接到电源两端时示数分别为6V和4V当只有电压表V2接到电源两端时如图乙所示示数为 sketch template

如图所示电源电压保持不变闭合开关S1S2电压表示数为6V电流表示数为06A断开S2后电压表示数变为2V则R2的电阻和电源电压 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．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为6V小灯泡标有“4V 16W 的字样定值电阻R=20Ω不考�温度对灯丝电阻的影响�动变阻器上标有“0 sketch template

如图所示电路的电源电压和灯泡电阻不变R1=5Ω灯L标有“8V 10Ω 字样8V是指灯泡正常工作时的电压超过此电压灯泡容易损坏电流 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 sketch template

如下左图所示是标有“25V 字样的小灯泡L的电阻随它两端电压变化的图象将小灯泡L和电阻R接入右图所示的电路中电源电压为6V当开关S断开 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电流表两次示数之比是1∶5由此可知电阻与之比是 A．5∶1 B．1∶5 sketch template

如图 所示电源电压保持不变当�动变阻器的�片P在中点时标有“12V 36W 字样的小灯泡正常�光P在B端时电流表的示数为02A求 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为12V且保持不变电阻R1=20Ω�动变阻器R2的最大阻值为20Ω则当�动片P在�动变阻器上�动时电流表电压表上 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a端移动到b端时测得电阻R两端的电压U与通过R的电流I的变化关系 sketch template

在如图所示的电路中电源电压保持不变闭合开关S将�动变阻器�片P�左移动时以下说法正确的是 A．两电流表示数的差值的绝对值变小B 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

27．如图所示的电路电源电压和灯丝电阻保持不变开关S闭合后在�动变阻器�片�左�动过程中电压表V的示数 电流表A1的示数 电流表 sketch template

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