在如图所示的电路两个灯泡l1l2闭合开关电流表a1的示数如图乙所示．电流表a2和a的指针都指�同一刻度．如图丙所示下面说法正确的是 Sketch Coloring Page

在如图所示的电路两个灯泡l1l2闭合开关电流表a1的示数如图乙所示．电流表a2和a的指针都指�同一刻度．如图丙所示下面说法正确的是 Template

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sketch #4736 Naruto by Wellen Lima

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tomski在如图所示的电路两个灯泡l1l2闭合开关电流表a1的示数如图乙所示．电流表a2和a的指针都指�同一刻度．如图丙所示下面说法正确的是 coloring

小明在实验时连成如图所示的电路但他闭合开关后�现L1与L2都不亮检查电路后也不知道�生了什么故障老师�诉他是其中一个灯泡的原因并�他 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

在如图所示的电路中两个相同的下灯泡L1和L2分别串联一个带铁芯的电感线圈L和一个�动变阻器R闭合开关S后调整R使L1和L2�光的亮度 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

如图所示的电路中若要使灯L1和L2组成并联电路应闭合开关 应断开开关 A．S2S3S1B．S1S3S2C．S1S2S3——青 sketch template

在如图所示的电路中电源电压保持不变开关S1始终闭合当开关S2断开时灯L1L2是串联的当开关S2闭合时灯L2被短路电压表的示数变 sketch template

在如图所示的电路中当闭合开关S后�现两灯都不亮电流表指针几乎指在零刻度线电压表指针则有明显偏转如果把灯L1和L2对调位置两个表均无 sketch template

如图所示的两个电路中电源电压恒定且相等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灯泡L1和L2的 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

在如图所示的电路中当闭合开关S后�现两灯都不亮电流表的指针几乎指在零刻度线电压表指针则有明显偏转该电路中的故障可能是 A．灯泡L2 sketch template

实验课上同学们把两个相同规格的小灯泡连接在如图甲所示的电路中闭合开关后两灯�光．此时一同学不小心把L1的玻璃外壳打破了结果L1熄灭 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 sketch template

如图所示电路中S1闭合S2断开L1L2是两个完全相同的灯泡若将S2闭合后L1的亮度将A不变 B变亮C变暗D如何变化不能 sketch template

如图甲所示两个灯泡串联在电源电压恒为6V的电路中L1的额定电压为3VL2的额定电压为2V．通过两个灯泡的电流与其两端电压的关系如图乙所示 sketch template

小红做实验时他按如图所示的电路图连接好电路闭合开关后�现两灯均不亮故障原因是两只灯泡中只有一只是坏的．现给你一根导线一个电压表一只 sketch template

如图所示的电路中要使灯泡L1和灯泡L2组成串联电路应将开关S1断开开关S2闭合开关S3 要使灯泡L1和灯泡L2组成并联电路应将开关 sketch template

31．图21所示是研究串联电路中灯泡两端的电压跟总电压关系的实验电路图闭合开关s后两个灯泡都不�光为查找电路故障把电压表并联在 sketch template

28．在图所示“组成串联电路 的实验中当开关S闭合后灯L1L2均不亮某同学用一根导线去查找电路的故障他将导线先并接在灯L1两端时 sketch template

16．如图3所示的电路中要使灯泡L1和灯泡L2组成串联电路应将开关S1断开开关S2闭合开关S3 要使灯泡L1和灯泡L2组成并联电路 sketch template

如图所示把两个灯泡串联后接到电源上合上开关S后�现L1比L2亮设通过灯泡L1的电流为I1通过灯泡L2的电流为I2则 A I1 sketch template

在如图所示的四个电路中当闭合开关S后小灯泡L1L2都能正常�光其中电压表可直接测出L1两端电压的电路图是 A．B．C．D．题目和 sketch template

在如图甲所示的电路中当开关闭合后两个电压表的指针偏转均为图乙所示则两个灯泡两端的电压分别为 A．12V和48VB．6V和1 sketch template

实验课上同学们把两个相同规格的小灯泡连接在如图甲所示的电路中闭合开关后两灯�光．此时一同学不小心把L1的玻璃外壳打破了结果L1熄灭 sketch template

如图所示电路要使灯泡L1和L2组成串联电路应该 A．只闭合S3B．只闭合S2C．同时闭合S1和S2D．同时闭合S1和S3——青夏教育 sketch template

如果想在如图所示的电路中再接入一只灯泡且与其它两灯互不干扰则应安装在位置2要想直接测出通过灯泡L1的电流则应在位置3接入一支电流表 sketch template

在如图所示的电路中两个相同的小灯泡L1和L2分别串联一个带铁芯的电感线圈L和一个�动变阻器R闭合开关S后调整R使L1和L2�光的亮度 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

在“探究串联电路电流特点时小明设计的实验如图所示为了使结果具有普遍性他应该选择两个规格 的小灯泡把两个灯泡L1L2串联起来接到如图 sketch template

如图所示的电路中先闭合开关S1后再闭合S2则 A．灯泡L1亮L2不亮电压表将电源短路了 B．灯泡L2亮L1不亮电压表示数 sketch template

将额定电压相同的两个灯泡L1L2串联后接入电路中如图所示．接通电路后�现L1要亮一些则下列判断正确的是 A．L1的电阻比L2的小B sketch template

如图所示虚线框内的部分电路是由两个完全相同的灯泡和一只开关组成的．当开关由闭合到断开时电压表读数不变电流表读数由大变小．画出虚线框内的 sketch template

如图1所示电路下列说法正确的是 AL1L2串联 B开关S只控制L2 图1 C电流表测干路中电流 D——青夏教育精英家教�—— 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

1．在如图所示的电路中下面的说法正确的是 A电流表的示数就是电路的总电流 B这个电路是个串联电路 CS1闭合时两个灯泡全都亮 sketch template

如图所示的电路是某种逻�电路两个开关AB并联控制同一灯泡YAB中任一开关闭合时灯泡Y都亮那么这个电路的逻�关系为 A “非 sketch template

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