小明同学在一次实验中将灯泡两端的电压从12v增加到14v他观察到和灯泡串联的电流表的示数变化了02a下面的说法中正确的是a．该灯泡消耗 Sketch Coloring Page

小明同学在一次实验中将灯泡两端的电压从12v增加到14v他观察到和灯泡串联的电流表的示数变化了02a下面的说法中正确的是a．该灯泡消耗 Template

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tomski小明同学在一次实验中将灯泡两端的电压从12v增加到14v他观察到和灯泡串联的电流表的示数变化了02a下面的说法中正确的是a．该灯泡消耗 coloring

小明同学在一次实验中将灯泡两端的电压从12V增加到14V他观察到和灯泡串联的电流表的示数变化了02A下面的说法中正确的是A．该灯泡消耗 sketch template

学校实验室新进了一批“25V 075W”的小灯泡，小明想通过实验探究小灯泡的额定功率是否符合规格。实验�提供了以下器材：待测小灯泡、铭牌为 sketch template

小明同学在一次实验中将灯泡两端的电压从12V增加到14V他观察到和灯泡串联的电流表的示数变化了02A下面的说法中正确的是A．该灯泡消耗 sketch template

在“测定小灯泡的功率 的实验中小明同学设计的电路如图甲所示他选用的小灯泡的额定电压为25V电阻约为8Ω电源为两节干电池 1请用 sketch template

小明同学在做“测定小灯泡正常�光时的电阻 的实验时所用电源电压保持不变实验用小灯泡上标有“02A 字样．1如图是小明连接的不完整的 sketch template

如图所示是小明同学研究串联电路中电流电压特点的 实物连接图当开关闭合时灯L1不亮灯L2亮电流表的指针明显偏转电压表示数为电源电压 sketch template

小明同学用图a中的器材测量一只额定电压为38V的小灯泡的额定功率 1小明所连的电路中有错误或不妥请改正在要去掉的线上打“× 并添加 sketch template

如图是几个同学在“测量小灯泡电功率 的实验．1小明在实验时用的电源电压恒为6V小灯泡的额定电压为25V正常�光时灯丝电阻约为10Ω sketch template

题目在探究“并联电路的电压规律 实验中小明使用了两个相同的灯泡．1在连接电路时开关应该．图甲是小明已经完成一部分的实物电路图请 sketch template

在探究“并联电路的电压规律 实验中小明使用了两相同的灯泡1在连接电路时开关应该断开．图甲是小明已经完成部分的电路请用笔代替导线在图 sketch template

题目小明所在的实验小组在“测定小灯泡电阻 的实验中所用灯泡的额定电压为25 V1小明采用图甲所示的方案测量时�现闭合开关后无 sketch template

小明同学在做“测定小灯泡的额定功率 实验时选取了一个标有“25V 的小灯泡和必要的器材用导线把实验器材连接起来如图所示．1在开始 sketch template

某同学通过实验研究小灯泡的电流与电压的关系可用的器材如下电源电键�动变阻器电压表电流表小灯泡导线若干电压表和电流表均视为 sketch template

实验课上小明利用如图甲所示的电路测量小灯泡的电功率，实验室有如下器材：电源（电压恒为6V、小灯泡（额定电压为25V，灯丝电阻约为10Ω sketch template

在探究串并联电路规律的实验中小明同学进行了如下操作1把两个标有“25V03A 字样的小灯泡L1和L2串联起来接到电源上使灯泡 sketch template

小明在做“测量额定电压为25V的小灯泡的电功率 的实验中得到如下所示一组U和I的数据实验序号1234灯泡两端的电压UV06122 sketch template

某实验小组的同学在一次实验中将一个标有“12 V 2．4 W 的灯泡和一个电阻R串联起来接在电路中如图所示闭合开关灯泡恰能正常�光如果 sketch template

在一次实验中某同学用电压表测小灯泡两端的电压．电压表选用0 3V的量程时电压表的示数为22V改选用0 15V量程时电压表的示数为2 sketch template

小明测量一只额定电压为25V灯泡的电功率． 实验次数 电压表示数/V 电流表示数/A 灯泡亮度 1 15 02 较暗 2 25 正常 sketch template

某同学在做“测定小灯泡功率 的实验时连接的实物电路如图所示．在检查线路时�现有一根导线连接错误．请你在图中用“× 标出这根错接的导线并画 sketch template

某同学通过实验研究小灯泡的电流与电压的关系可用的器材如下电源电动势为3 V内阻为1 Ω电键�动变阻器电压表电流表小灯泡 sketch template

某同学在“测量小灯泡电阻 的实验中设计了如图22甲所示的电路图小灯泡上标有“38V15W 字样请完成和解答下列问题 1在图22 sketch template

百度教育 sketch template

小华同学在“测量小灯泡的电功率 的实验中所用电源电压恒为3V小灯泡上标有“25V 字样．1请用画线代替导线将图中的实物电路图连接 sketch template

题目某同学利用如图所示的电路测量小灯泡的电阻小灯泡标有“2．5 V 的字样他记录的实验数据如下表所示其中有一次记录的电流表示数是错误 sketch template

题目为了测定额定电压为“25V 小灯泡的电功率小明同学设计了如图甲所示的电路图．实验中各元件完好电源电压保持不变．连接电路的过程中 sketch template

在“测定小灯泡电阻 的实验中提供如下实验器材A．待测小灯泡 B．电源 C．电流表 D．电压表 E．�动变阻器 F．开关导线1小明同学 sketch template

在探究“并联电路中电压特点 的实验中1完成电路的连接要求电压表测L2两端的电压2实验小组的小明同学测出了L2两端的电压为26V sketch template

小明同学在做“探究串联电路电压的规律 的实验时连好了如图所示的电路接通开关后�现L1正常�光L2只能微弱�光对产生这一现象的原因分析 sketch template

题目在“探究串联电路中用电器两端的电压与电源两端电压的关系 的实验中1如图所示连接电路时开关要 实验中应选择规格选填“相同 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 sketch template

如图所示的电路中电源为可调压直流学生电源电压表量程为“0 15V 电流表量程为“0 06A 小灯泡标有“6V12W 字样R0为 sketch template

物理课上小明探究了串联电路中电压的规律他还想知道并联电路中的电压有什么规律于是在课后请你和他合作进行了以下探究1提出问题并联电路 sketch template

动手做一做 实验一按图连接电路然后把小灯泡换成小电动机和音乐门铃重做实验看一看用电器在什么时候工作 实验二按图所示连接电路把导线 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

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