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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sketch #4937 Favorite animal competition runner-up: White Tiger by Deepak Kaushik

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sketch #4937 Favorite animal competition runner-up: White Tiger by Deepak Kaushik

sketch #2787 Spongebob by ShopRasta Roots

ShopRasta Roots
sketch #2787 Spongebob by ShopRasta Roots

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Laura Agapi Asnicar
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anonymous
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sketch #3148

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anonymous
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sketch #2996 American Flag

James Forest
sketch #2996 American Flag

sketch #2910 Harley Quinn Germaine Hoens

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anonymous
sketch #2910 Harley Quinn Germaine Hoens

sketch #5340 Amazing Dragon

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anonymous
sketch #5340 Amazing Dragon

sketch #3118 Joker Hernan Da Costa Marquez

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sketch #3118 Joker Hernan Da Costa Marquez

sketch #5052 Gorillaz by Rafał Dawid

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sketch #5052 Gorillaz by Rafał Dawid

sketch #2283 Head in a shoe

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sketch #2283 Head in a shoe

sketch #4152

Nujie C Nobita
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sketch #1110

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anonymous
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sketch #4876 Luffy by Nycole Prietsch

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sketch #4876 Luffy by Nycole Prietsch

sketch #20344

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sketch #20344

sketch #1503 L 'Algérie

AbdouGt Zizou
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sketch #5066 Rey Helado by Gleny Acevedo

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sketch #5066 Rey Helado by Gleny Acevedo

sketch #3774 Marilyn Manson by Junior Silva

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sketch #3774 Marilyn Manson by Junior Silva

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Abdul Kaium Alamgir
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sketch #5125

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anonymous
sketch #5125

sketch #5370 Requiem for the Phantom by Marita Amaya

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sketch #5370 Requiem for the Phantom by Marita Amaya

sketch #2810 Lennon by El Harouati Nassera

El Harouati Nassera
sketch #2810 Lennon by El Harouati Nassera

sketch #3517 Scratch from Ice Age by VlAd Craciun

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sketch #3517 Scratch from Ice Age by VlAd Craciun

sketch #4728 Angry Toad by Geneval Mendes

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sketch #4728 Angry Toad by Geneval Mendes

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sketch #1114 fire flame camping bonfire

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sketch #1114 fire flame camping bonfire

sketch #3688

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anonymous
sketch #3688

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

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

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

百度教育 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

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

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如图所示电源两端电压保持12V不变小灯泡L上标有“6V 3W 字样�动变阻器最大阻值R=60Ω．不考�灯丝电阻随温度的变化开关 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

题目如图所示的电路电源电压为 3 伏并保持不变定值电阻 R1 的阻值为 30 欧姆．当电键 S 闭合时电流表 A1 的示数为 04 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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

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

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

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

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

如图所示把标有“6V 3W 的小灯泡与最大阻值为100Ω的�动变阻器连接在电源电压恒为18V的电路中各表的示数均不超过所选量程且灯泡两端 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

如图所示电源电压保持12V不变小灯泡L上标有“6V3W 字样�动变阻器最大阻值R=60Ω．不考�温度对灯丝电阻的影响下列说法正确的是 sketch template

如图所示的电路中电源电压是12V且保持不变R1=R3=4ΩR2=6Ω．试求1当开关S1S2断开时电流表和电压表示数各是多� 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

如图9所示电源两端的电压为12V且保持不变电阻R1与 R2 的比值是4﹕1当开关S1闭合S2断开时10s内电流通过R1产生的热量是 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

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2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10�动变阻器R2的最大阻值为50当开关S闭合�动变阻器的�片P由 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

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

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

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