如图开关s闭合后下列说法正确的是a电磁铁a的上端是n极b弹簧具有弹性势能c电动机不工作d电灯正常工作——青夏教育精英家教�—— Sketch Coloring Page

如图开关s闭合后下列说法正确的是a电磁铁a的上端是n极b弹簧具有弹性势能c电动机不工作d电灯正常工作——青夏教育精英家教�—— Template

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sketch #1652

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anonymous
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sketch #3779 RIP Hugo Chavez Joey Hyuuga

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sketch #3779 RIP Hugo Chavez Joey Hyuuga

sketch #5211

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anonymous
sketch #5211

sketch #5216 D by Gabriela Segura

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sketch #5216 D by Gabriela Segura

sketch #3736 Why so serious? by Taï Marsan

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sketch #3736 Why so serious? by Taï Marsan

sketch #20344

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anonymous
sketch #20344

sketch #1536 Dark Night

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anonymous
sketch #1536 Dark Night

sketch #4688

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sketch #4688

sketch #1953 愛鼠繪

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sketch #1953 愛鼠繪

sketch #1145

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sketch #1145

sketch #76

Rachel Roe
sketch #76

sketch #3613

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anonymous
sketch #3613

sketch #2283 Head in a shoe

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sketch #2283 Head in a shoe

sketch #3192 Snake by Isaias Valenzuela Chaver

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sketch #3192 Snake by Isaias Valenzuela Chaver

sketch #4190

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sketch #4190

sketch #3071 Metallica - Kill &#;Em All by Dayana Aleman

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sketch #3071 Metallica - Kill &#;Em All by Dayana Aleman

sketch #2018

Charlie Vo
sketch #2018

sketch #3264 Lisa by Shaban Khan

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sketch #3264 Lisa by Shaban Khan

sketch #20215 Desert

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sketch #20215 Desert

sketch #5197 Rihanna by Ben Hall

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sketch #5197 Rihanna by Ben Hall

sketch #280

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anonymous
sketch #280

sketch #2431 face :D

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sketch #2431 face :D

sketch #3425 &#;Tonari no Kaibutsu-kun&#; by Betty Marie Melzer

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sketch #3425 &#;Tonari no Kaibutsu-kun&#; by Betty Marie Melzer

sketch #5220

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sketch #5220

sketch #839

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sketch #839

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 #5287

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anonymous
sketch #5287

sketch #5068

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sketch #5068

sketch #2593 Tweety by sketchmaster

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sketch #2593 Tweety by sketchmaster

sketch #5440

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sketch #5440

tomski如图开关s闭合后下列说法正确的是a电磁铁a的上端是n极b弹簧具有弹性势能c电动机不工作d电灯正常工作——青夏教育精英家教�—— coloring

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开关S闭合后下列说法正确的是A电磁铁A的上端是N极B弹簧具有弹性势能C电动机不工作D电灯正常工作——青夏教育精英家教�—— sketch template

如图2所示电路，当开关S闭合后，L1、L2均能�光，电流表、电压表均有示数．过一会儿，两灯都不�光．电流表、电压表的示数均为零，可能�生的故障 sketch template

如图所示当开关S闭合后下列说法正确的是 A．灯L1与灯L2是并联的B．电压表可测出灯L1两端的电压C．电流表A1测的是灯L1的电流D sketch template

18．如图15 15所示的电路中闭合S 当开关 S1从断开到闭合的过程中下列说法中正确的是 A．S1 闭合后电流表 A1A2示数相等 sketch template

题目如图所示的电路中下列说法不正确的是 A只闭合开关S1 只有电阻R1接入电路B闭合开关S1和S2 R1和R3串联电压 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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cd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所示的电路当闭合开关S时以下说法正确的是 A．电路中的总电阻不变 B．电路中的总电阻增大 C．灯L变亮 D．灯L变暗——青夏教育 sketch template

如图所示开关S闭合�现弹簧缩短小磁针旋转到如图中所示位置静止则下列说法正确的是 A 电源右端是负极B 小磁针上端是S极C sketch template

如图所示的电路为演示自感现象的实验电路若闭合开关S电流达到稳定后通过线圈L的电流为I1通过小灯泡L2的电流为I2小灯泡L2处于正常 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

关于如图所示的电路下列说法中不正确的是A断开S1S3闭合S2电路是通路B断开S2S3闭合S1电路是通路C断开S1S2 sketch template

关于如图所示的电路图下列说法错误的是 A．断开S1S3闭合S2电路是通路 B．断开S2S3闭合S1电路是通路 C．断开 sketch template

在探究通电导线在磁场中的受力方�与什么有关系时一位同学做了如图abc的三个实验．图中AB表示闭合电路的一部分导线导线上的箭头表示电流的 sketch template

如图所示的电路下列说法中正确的是A只闭合开关S1时小灯泡与�动变阻器串联B只闭合开关S2时电流表无示数C闭合开关S1和S2�右 sketch template

如图电源电压恒定闭合开关S�动电阻器�片P�右移动则开关闭合后下列关于电路的说法正确的是 A．灯泡L变亮B．灯泡L变暗C．电流表示 sketch template

如图所示电路电源电压不变当开关S闭合S1与S2断开时电流表示数为I1电压表示数为U1当开关SS1S2都闭合时电流表示数为I2 sketch template

如图电源电压恒定闭合开关S�动电阻器�片P�右移动则开关闭合后下列关于电路的说法正确的是 A．灯泡L变亮B．灯泡L变暗C．电流表示 sketch template

如图所示的电路下列说法中正确的是 A．只闭合开关S1S2灯L1亮L2不亮B．只闭合开关S2S3灯L1L2都亮C．只闭合开关 sketch template

如图所示，用弹簧挂一条形磁铁放在螺线管的正上方，闭合开关，待弹簧稳定后，将�动变阻器的�片缓慢�左移动，下列说法正确的是（） A 电压表示 sketch template

某电吹风的简化电路如图所示R1R2是�热电阻丝M是电动机电吹风工作时分别有冷风温风和热风三档．开关S1闭合后下列说法正确的是 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电源电压不变将开关S1S2都闭合后电路正常工作然后断开开关S2则下列说法正确的是 A．A1示数变小A2示数变小B．A1示 sketch template

如图所示闭合开关后电流表A1A2的示数比为13则下列说法正确的是 A．通过R1R2的电流之比是13B．R1R2两端的电压之 sketch template

2012•永川区模拟如图所示电路若电源电压为6VR1=10ΩR2=20ΩR3=5Ω当闭合开关S1后下列说法中正确的是 A sketch template

如图关于开关的控制作用下列说法正确的是 A．当S1S2都闭合时灯L2L3�光B．只闭合S2灯L1L3不�光C．只让灯L3�光 sketch template

如图电源电压不变当S闭合后�动变阻器的�片P�右移动的过程中下列说法正确的是A．灯泡亮度不变电压表示数变大B．灯泡变亮电压表示数 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所示电路中电源电压不变．开关S闭合后电压表V1V2示数之比为35断开开关S把电压表V1换成电流表A1把电压表V2换成电流表 sketch template

百度教育 sketch template

中考物理考点解读：通电螺线管的磁场知乎 sketch template

如图所示电路电源两端电压不变只闭合开关S1时电流表的示数为02A只闭合开关S2时电流表的示数为01A只闭合S3时电流表的示数 sketch template

如图所示电源电压保持不变R1为定值电阻闭合开关S将�动变阻器R2的�片P从最右端�中点移动下列说法正确的是 A．电压表V1与电压 sketch template

如图所示电路电源两端电压保持12V不变小灯泡L上标有“6V3W 字样�动变阻器最大电阻值R=60Ω．不考�灯丝电阻随温度的变化则下列 sketch template

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