如图所示开关s闭合后当�动变阻器的�片p�右�动时电压表电流表的示数变化是 A．v1v2a变大b．v1v2a变小c Sketch Coloring Page

如图所示开关s闭合后当�动变阻器的�片p�右�动时电压表电流表的示数变化是 A．v1v2a变大b．v1v2a变小c Template

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BaGaz Anggara
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anonymous

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sketch #5278 Cosmos by Jenna Khoùlix�

anonymous

anonymous
sketch #5278 Cosmos by Jenna Khoùlix�

sketch #2055 Flower

Raisa Mahmud
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sketch #2892 Joker by Frank Aguiar Au

anonymous

anonymous
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sketch #2899 Snoopy by Rhemzkian Esturco

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anonymous
sketch #2899 Snoopy by Rhemzkian Esturco

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sketch #3499 Alien Laura Gutierrez Hinojosa

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anonymous
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anonymous

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sketch #3613

sketch #5125

anonymous

anonymous
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sketch #5268 Harley Quinn by 조바다

anonymous

anonymous
sketch #5268 Harley Quinn by 조바다

sketch #3244 Winnie the Pooh by Ashok Kumar Chaturvedi

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anonymous
sketch #3244 Winnie the Pooh by Ashok Kumar Chaturvedi

sketch #654

anonymous

anonymous
sketch #654

sketch #3014 Fancy

James Forest
sketch #3014 Fancy "S "

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anonymous

anonymous
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anonymous

anonymous
sketch #5190 That Night by Nînâ Yämâhä

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anonymous

anonymous
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anonymous
sketch #5216 D by Gabriela Segura

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Donara Smbatyan
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sketchmaster
sketch #2619 Underwater by sketchmaster

sketch #3508 Medusa by Nelly Panambo

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anonymous
sketch #3508 Medusa by Nelly Panambo

sketch #3166 Axl Rose by Jessie Lightwood

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anonymous
sketch #3166 Axl Rose by Jessie Lightwood

sketch #1041 strawberries

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anonymous
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tomski如图所示开关s闭合后当�动变阻器的�片p�右�动时电压表电流表的示数变化是 a．v1v2a变大b．v1v2a变小c coloring

如图所示开关s闭合后三个灯泡属于并联的电路是 A．B．C．D．——青夏教育精英家教�—— sketch template

1如图甲所示电路中要使灯L1和L2连接成并联电路应闭合S2S3同时断开开关S1要使两灯连接成串联电路应闭合开关S1同时断开开关 sketch template

如图所示的电路电源电压不变开关S闭合后当S1由断开变为闭合时则A A1示数变大A2示数不变 B A1示数变大A2示数变大C sketch template

如图所示开关S闭合S1断开时电流表A1的示数为01A电流表A的示数为03A则通过灯L2的电流为 A若开关SS1都闭合则电流 sketch template

如图所示开关S闭合后当�动变阻器的�片P�右�动时电压表电流表的示数变化是 A．V1V2A变大B．V1V2A变小C sketch template

如图所示开关S闭合后两灯都�光电压表测出的电压有以下三种说法其中正确的是 A．灯L1两端的电压B．灯L2两端的电压C．灯L1L2 sketch template

如图所示的两个电路中电源电压保持不变闭合开关S当�动变阻器的�片P都�右移动时灯泡LlL2的亮度变化是A．LlL2都变亮B．L1 sketch template

如图当开关S闭合S1打开时电流表A的示数为I．当开关SS1都闭合时电流表A的示数为I′．比较II′大小正确的是 A．I=I′B sketch template

如图所示的电路中开关S闭合后电压表VlV2的示数分别为12 V和4 V电阻R2=20Ω求电阻R1的阻值和电流表A的示数分别为多� sketch template

如图所示当开关S闭合时�现只有一灯�光且电压表示数为45V产生这一现象的原因可能是 A灯L1断路 B灯L1短路 C灯L2 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

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

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电路开关S闭合后四个灯泡都正常�光某时刻t因灯丝烧断而突然熄灭假设其它三灯丝都没烧断则 AL2变暗L3更亮L1不变 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开关S闭合时可能�生的现象是 AL1被烧坏 BL1L2均�光 C电池被烧坏 DL2被烧坏题目和参考答案——青夏教育 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

如图所示的电路中闭合开关S后比较abcd四处电流大小其中不正确的是 A．Ia＞IbB．Ia=IdC．Ia＞IdD．Id＞Ic sketch template

如图所示电路中开关S闭合时下列判断正确的是 A．两灯都变暗B．两灯都变亮C．A灯变暗B灯变亮D．A灯变亮B灯变暗题目和参考答案 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

如图所示开关S闭合后A1的示数为09AA3的示数为04A则通过灯泡L1的电流是 通过灯泡L2的电流是 A2的示数为题目和 sketch template

如图所示闭合开关S�片P�左移动电压表示数将变大电源电压与电流表示数的比值将变小．题目和参考答案——青夏教育精英家教�—— 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串联且灯L1被短路 B 电流表A1测的是灯L1的电流C 电流表A2测的 sketch template

如图所示电源电压不变当开关S闭合�动变阻器的�片P�右移动时 A．电流表A1的示数减小A2的示数减小B．电流表A1的示数不变A2 sketch template

如图所示当开关S闭合后�动变阻器的�片P�右�动时则下列说法中正确的是 A．L1变亮B．L2亮度不变C．电压表示数变大D．电流表示数 sketch template

如图所示电路开关S1闭合后S2的断开与闭合使电流表A2的两次示数之比为35由此可知R1与R2的阻值之比为23S2断开再闭合的过程 sketch template

如图所示的电路中开关S闭合后电压表VlV2的示数分别为12 V和4 V电阻R2=20Ω求电阻R1的阻值和电流表A的示数分别为多� sketch template

百度教育 sketch template

如图所示电路中当开关S闭合后要使电阻R1R2串联甲乙应该接入的是 A．甲接电压表乙接电流表B．甲接电流表乙接电压表C．甲乙 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

如图所示闭合电键S后当�动变阻器的�片P�右移动时电压表V的示数将．电流表A3与电流表 A1示数的差值跟电压表V示数的比值均选填 sketch template

如图所示当开关S闭合后�动变阻器�片P在B端时电压表示数为9V电流表示数为01A�片P在中点C时电压表的示数为6V．求1�动 sketch template

如图所示的电路中电源两端电压不变灯泡的电阻不随温度变化闭合开关S后�动变阻器的�片P由图示位置�a端�动的过程中下列说法正确的是A 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

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