如图所示的电路中当�动变阻器r2的�片�下�动时 A．r1上消耗的功率将增大b．伏特表v的示数将变小c．电源的功率将增大d．电容器c的两 Sketch Coloring Page

如图所示的电路中当�动变阻器r2的�片�下�动时 A．r1上消耗的功率将增大b．伏特表v的示数将变小c．电源的功率将增大d．电容器c的两 Template

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sketch #4549

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anonymous
sketch #4549

sketch #1724

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anonymous
sketch #1724

sketch #5330 Frozen by Amanda Kachadurian

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anonymous
sketch #5330 Frozen by Amanda Kachadurian

sketch #5018 Owl by Komlós László

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sketch #5018 Owl by Komlós László

sketch #3285 Spongebob by Abbie Hayman

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sketch #3285 Spongebob by Abbie Hayman

sketch #2536

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anonymous
sketch #2536

sketch #5190 That Night by Nînâ Yämâhä

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anonymous
sketch #5190 That Night by Nînâ Yämâhä

sketch #3572 Hate mondays by Malyi Link

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sketch #3572 Hate mondays by Malyi Link

sketch #3457

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anonymous
sketch #3457

sketch #5173 Super Meat Boy by Zorka Edding Giustinianovic

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anonymous
sketch #5173 Super Meat Boy by Zorka Edding Giustinianovic

sketch #4622 Miku by Kheith Ryan Lubiano

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anonymous
sketch #4622 Miku by Kheith Ryan Lubiano

sketch #4661 Woodpecker by Hsien-Ying Hsieh

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sketch #4661 Woodpecker by Hsien-Ying Hsieh

sketch #5171

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anonymous
sketch #5171

sketch #5153 Random Access Memories by Khin Nyunt

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anonymous
sketch #5153 Random Access Memories by Khin Nyunt

sketch #5078 Naruto by Shimun Yeyo Ahmed

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anonymous
sketch #5078 Naruto by Shimun Yeyo Ahmed

sketch #2337

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anonymous
sketch #2337

sketch #5131 Miley Cyrus by Vannak Von

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anonymous
sketch #5131 Miley Cyrus by Vannak Von

sketch #1216

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anonymous
sketch #1216

sketch #2431 face :D

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sketch #2431 face :D

sketch #5127 Captain America by Mark Phillips

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sketch #5127 Captain America by Mark Phillips

sketch #4269 dragón

Ainhoa White
sketch #4269 dragón

sketch #2062

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anonymous
sketch #2062

sketch #2616 Green Day by sketchmaster

sketchmaster
sketch #2616 Green Day by sketchmaster

sketch #33 Flutter-bys

Rachel Roe
sketch #33 Flutter-bys

sketch #5085 CM Punk by Luciana Nazar

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sketch #5085 CM Punk by Luciana Nazar

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 #3047 Oppa Pika Style by Itz Rakhi

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sketch #3047 Oppa Pika Style by Itz Rakhi

sketch #5272

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anonymous
sketch #5272

sketch #4191

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anonymous
sketch #4191

sketch #4834 Aayla Secura by Nînâ Yämâhä

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anonymous
sketch #4834 Aayla Secura by Nînâ Yämâhä

tomski如图所示的电路中当�动变阻器r2的�片�下�动时 a．r1上消耗的功率将增大b．伏特表v的示数将变小c．电源的功率将增大d．电容器c的两 coloring

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所示电路图中定值电阻和�动变阻器R串联两端的电压分别为当�动变阻器的�片P�右�动过程中 A 变小也变小 B 变小不变 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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

题目在图a所示电路中电源电压为24伏且保持不变电阻R1的阻值为20欧�动变阻器R2标有“1A 字样电压表V的表盘如图b所示 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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

在如图所示的电路中，电源电压保持不变，定值电阻R1的阻值为10Ω，�动变阻器R2上标有“2A”字样。闭合开关S，移动�片P至电路中的电流最大 sketch template

如图所示电路中闭合开关S当�动变阻器的�片P�左�动时电流表的示数 电压表的示数 选填“不变 “变大或“变小 ——青夏教育 sketch template

题目如图甲所示的电路中电源电压保持不变R0为定值电阻R为�动变阻器．闭合开关S后在移动�片P的过程中电流表的示数I与R的阻值关系 sketch template

如图6所示电路中当�动变阻器的�动头P�右运动时有 A．电压表示数减小 B．灯L1变亮 C．灯L2变亮 D．灯L3变亮——青夏教育精英家教�—— 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

如图所示电路中的电源电压不变当�动变阻器的�片P移动时下列说法正确的是AP�a移动�阻阻值变大B将�片P移至a点A1示数为零CP sketch template

如图所示的电路中若同时闭合开关S1和S3、断开S2电阻R1与R2是 的若只闭合开关S2电阻R1和R2是 的均选填 sketch template

如图所示的两个电路当�动变阻器�片�右移动时灯泡L1 L2亮度变化情况是 A．L1变亮L2变暗B．L1L2都变亮C．L1变暗L2不 sketch template

题目如图所示的电路中电源电压为 6V且保持不变�动变阻器 R 的规格为“40Ω 1A 定值电阻 R1的规格为“10Ω 05A 只 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

20．在如图所示电路中闭合电键S当�动变阻器的�动触头P�下�动时四个理想电表的示数都�生变化电表的示数分别用IU1U2和U3表示 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

两个定值电阻R1、R2并联在电路中如图甲所示它们的电流与其两端的电压关系如图乙所示闭合开关S则R1R2产生的热量之比为 A sketch template

在如图所示的电路中当�动变阻器R的�动片P�下移动时以下判断中正确的是 A电源内部�热功率变小 B小电珠L变亮 C电流表上读数 sketch template

如图所示的电路中电阻R1=30欧�动变阻器R2标有“100欧 2A 字样电流表的量程为006安电压表的量程为015伏闭合电键S 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电阻R1=6Ω开关断开时电压表示数为9V此时电流表的示数为开关闭合时的3/4则电阻R2= Ω电源电压= V．——青夏教育精英 sketch template

如图所示的电路中U=120V�动变阻器R2的最大值为200ΩR1=100Ω．当�片P�至R2的中点时ab两端的电压为 A．40 sketch template

如左图所示的电路中电源电动势为30V内阻不计L1L2L3为3个相同规格小灯泡这种小灯泡的伏安特性曲线如右图所示．当开关S闭合后 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SS1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

如图所示的电路中闭合开关S�动变阻器的�片P�右�动时则 A R1的电功率一定减小B 电路中的总电功率一定增大C 电流表的示数 sketch template

如图所示的电路�动变阻器的�片P�右移动的过程中下列说法中正确的是A．电流表示数变小电压表示数变大 B．电流表电压表示数均变小 C sketch template

在如图所示的电路中电源电压保持不变电阻R1 的阻值为20Ω闭合开关S电流表A1的示数为03A电流表A 的示数为05A．求1 sketch template

如图所示电路中电源电压不变R1为定值电阻R2为�动变阻器．闭合开关S当�片P在某一端点时电流表示数为01AR2消耗的电功率为lW sketch template

如图所示的电路中当�动变阻器R2的�片�下�动时 A．R1上消耗的功率将增大B．伏特表V的示数将变小C．电源的功率将增大D．电容器C的两 sketch template

12．在如图所示的电路中电源电压恒定为U电键闭合后将�动变阻器R2的�片P�左�动时电路中的小灯泡L1L 2和L 3的亮度变化情况是 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

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