三穗中学八7班有的同学用如图所示电路测小灯泡的电阻开关闭合时�现灯不亮电流表没有示数电压表有较大的示数出现此故障的原因是 A Sketch Coloring Page

三穗中学八7班有的同学用如图所示电路测小灯泡的电阻开关闭合时�现灯不亮电流表没有示数电压表有较大的示数出现此故障的原因是 A Template

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tomski三穗中学八7班有的同学用如图所示电路测小灯泡的电阻开关闭合时�现灯不亮电流表没有示数电压表有较大的示数出现此故障的原因是 a coloring

三穗中学八7班有的同学用如图所示电路测小灯泡的电阻开关闭合时�现灯不亮电流表没有示数电压表有较大的示数出现此故障的原因是 A sketch template

三穗中学八7班有的同学用如图所示电路测小灯泡的电阻开关闭合时�现灯不亮电流表没有示数电压表有较大的示数出现此故障的原因是 A sketch template

三穗中学八7班有的同学用如图所示电路测小灯泡的电阻开关闭合时�现灯不亮电流表没有示数电压表有较大的示数出现此故障的原因是 A 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

百度教育 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 sketch template

题目小西和小林用如图所示的器材探究串联电路的电压关系用三节干电池串联做电源UAB/VUBC/VUAC/V2121421小西用 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

15．小红同学要测量额定电压为38 V小灯泡的功率． 1连接的不完整的实物电路如图甲所示．请用笔画线代替导线完成实物电路的连接． 2 sketch template

用如图所示的电路可以测出一个未知电阻的阻值其中RX为待测电阻R为电阻箱S为单刀双掷开关R0为定值电阻．某同学用该电阻进行实验主要实验 sketch template

题目某实验小组的同学用如图所示器材测量小灯泡的电功率．已知电源电压恒为6V不变待测灯泡的额定电压为38V功率估计在11W左右 sketch template

实验室有一组同规格的小灯泡标有“38V×× 字样小灯泡的额定功率被老师用胶布挡住让几位同学比赛看谁能先测出来．同学们用如图18所示的 sketch template

题目智慧小组的同学在“测量小灯泡的电功率 的实验中所用器材如下额定电压为25V的小灯泡正常�光时灯丝电阻约为8电源电压恒为6V sketch template

题目如图所示电流表量程为0 06A电压表量程为0 15V电阻R0=30Ω电路两端电压恒为U=24V当�动变阻器接入电路的电阻 sketch template

题目某实验小组分别用如图所示的甲乙两个�轮组在相同时间内把重物G提升相同高度F1和F2大小相等不计绳重及�擦下列说法正确的是A sketch template

9．某同学在做“用电流表测电流 的实验中所用电路如图甲所示按电路图正确连接电路并接通开关S后电流表A1A2的计数如图乙则A1读数是 sketch template

题目小余和小乐按照课本要求探究并联电路中电流的关系他们设计的电路如图所示1在连接电路的过程中开关应该 2在实验中小余试触时 sketch template

甲乙两位同学用如图所示的器材正确连接电路后合上开关后看到L1亮L2不亮．根据这一现象甲乙两位同学分别做出以下分析甲因为L2不亮 sketch template

某物理实验小组的同学在探究所受重力的大小与物体质量的关系时实验记录如下表1在实验过程中需要的测量工具有 和 2分析表中实验数据 sketch template

开县某中学八年级三班的小华同学在做“探究导体中的电流与它两端的电压的关系 的实验中设计了如图所示的实验电路图．�你认为小华同学所设计电路的 sketch template

题目亲爱的同学你会使用下面的基本实验仪器吗1如图所示的温度计是根据 的性质制成的此时温度计的示数为 °C2小菲同学用如图所 sketch template

用如图所示的电路可以测出一个未知电阻的阻值其中RX为待测电阻R为电阻箱S为单刀双掷开关R0为定值电阻．某同学用该电阻进行实验主要实验 sketch template

某兴趣小组的同学进行电学实验过程中�现一个有趣的元件有AB两部分被封闭在一个透明的玻璃壳内ab是其两个外露的接线柱如图所示．他们 sketch template

用如图所示的电路可以测量一个未知电阻的阻值其中RX为待测电阻R为电阻箱S为单刀双掷开关R为定值电阻．某同学用该电路进行实验主要 sketch template

题目某同学用如图所示的装置探究液体内部压强的特点容器中间用隔板分成左右两部分隔板下部有一圆孔用薄橡皮膜封闭容器中加入液体后橡皮膜 sketch template

九年级9班的同学在教师指导下用如图甲所示的实验装置进行“观察水的沸腾 的实验．1本实验中放置石棉�的铁圈位置和悬挂温度计的铁杆位置非常 sketch template

如图所示的电路开关S闭合后将�动变阻器的�片P�右�动的过程中有关电流表和电压表的读数以及灯泡亮度的变化下列叙述正确的是 A．电流 sketch template

某同学用如图所示的电路来研究通过导体的电流跟导体电阻的关系其中R为定值电阻他第一次实验用的定值电阻的阻值为R1闭合开关后记下电流表示数 sketch template

“用电流表测电流 的实验中某同学用如图所示的接法来测灯泡的电流 1 该图要用电流表测灯L的电流其中电流表的连接有什么错误 2现 sketch template

41．如图30所示闭合开关后将�动变阻器的�片从中点c移到b端的过程中几乎观察不到电压表示数的变化指针始终指在一个较大的数值上这可能 sketch template

为了探究“导体中的电流与两端电压的关系八1班先后用四个不同的定值电阻做实验得到下表的实验数据． U/VI/AR/Ω 0 1 2 3 sketch template

题目用如图所示的装置做“验证机械能守恒定律 的实验1除了图中所示的器材外下列器材哪个是完成该实验所必须的A．秒表 B．刻度尺 C sketch template

三穗中学八2班同学用图1的装置改变灯泡的亮度用电压表和电流表测灯泡的电压和电流要求�片右移灯变亮灯的电压不能超过3V电流不超过0 sketch template

如图a所示是某同学用伏安法测电阻的实验电路当�动变阻器的�片�到某一位置时电流表的示数如图b所示其读数为032032A sketch template

如图所示的电路开关S闭合后下列叙述正确的是 A．将�动变阻器的�片P�右�动的过程中电流表的读数变大电压表的读数变小B．将�动 sketch template

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