如图所示是小红测定小灯泡电阻的电路图 当闭合开关s时�现灯l不亮电流表电压表均无示数若电路故障只出现在灯l和变阻器r中的一处则下列 Sketch Coloring Page

如图所示是小红测定小灯泡电阻的电路图 当闭合开关s时�现灯l不亮电流表电压表均无示数若电路故障只出现在灯l和变阻器r中的一处则下列 Template

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tomski如图所示是小红测定小灯泡电阻的电路图 当闭合开关s时�现灯l不亮电流表电压表均无示数若电路故障只出现在灯l和变阻器r中的一处则下列 coloring

10．如图3所示是小红测定小灯泡电阻的电路图当闭合开关S时�现灯L不亮电流表电压表均无示数若电路故障只出现在灯L和变阻器R中的一处 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

如图甲所示的是利用“伏安法测小灯泡电阻的实验电路图图乙是根据实验数据画出的通过小灯泡的电流I与它两端电压U之间的关系图象．通过图象可以得出 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

小红在实验室测量额定电压为25伏，电阻约为5欧的小灯泡的额定功率，实验电路如甲图所示 sketch template

中考物理知识点：测量小灯泡的电阻 欧姆定律中考� sketch template

如图甲所示是小红同学测定“25V 1W 的小灯泡电阻的实物连接图．1电源电压6V请用笔画线代替导线帮她完成电路的连接．2电路连接 sketch template

如下左图所示是标有“25V 字样的小灯泡L的电阻随它两端电压变化的图象将小灯泡L和电阻R接入右图所示的电路中电源电压为6V当开关S断开 sketch template

如图所示在测定“小灯泡电功率 的实验中电源电压为45V小灯泡额定电压为25V电阻约为10Ω．1请你用笔画线代替导线将图a中的 sketch template

如图所示是小红测定小灯泡电阻的电路图 当闭合开关S时�现灯L不亮电流表电压表均无示数若电路故障只出现在灯L和变阻器R中的一处则下列 sketch template

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

如图所示是小红测定小灯泡电阻的电路图当闭合开关S时�现灯L不亮电流表电压表均无示数若电路故障只出现在灯L和变阻器R中的一处则下列 sketch template

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

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

题目如图所示是伏安法测小灯泡电阻的实验1请将实物图连接完整电压表用小量程2连接电路时开关要处于选填“断开或“闭合 状态 sketch template

如图所示是某实验小组选用的测定小灯泡电功率所需要的电路元件小灯泡的额定电压为25V估计小灯泡的阻值约为10Ω1测定小灯泡电功率 sketch template

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

如图所示是小华和小红做“测定小灯泡功率实验电路图．其中小灯泡的额定电压为25V灯丝电阻约10Ω左右电源为两节新的干电池�动变阻器上标 sketch template

如图所示L是“12V 6W 的小灯泡R1是定值电阻R2是�动变阻器设电源电压和灯泡电阻不变． 1求小灯泡的电阻值． 2闭合开关 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

如图所示小灯泡标有“6V 36W 字样�动变阻器变化范围0 12Ω电源电压和小灯泡电阻不变S1始终闭合．求1小灯泡电阻RL是 sketch template

小红用如图甲所示的实验电路“探究电流与电阻的关系”，实验中所用定值电阻的阻值分别为各一个。（1）电路图中�动变阻器的作用是和控制定值电阻两端 sketch template

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

如图所示是测定小灯泡额定功率的实验电路如果考�到伏待表和安培表本身有一定的电阻那么小灯泡额定功率的测量值应该比实际值 A．大B．小C sketch template

小明同学用如图所示的电路测定小灯泡的功率电路中电源电压恒为45V电压表的量程为0 3V电流表的量程为0 06A�动变阻器的规格为 sketch template

学校课外活动小组为检测某小灯泡而设计如图所示的电路小灯泡上标有“3V 03A 的字样�动变阻器R0上标有“25Ω 1A 的字样电流表 sketch template

在如图所示电路中L是标有“6V 3W 字样的小电灯它与定值电阻R．和�动变阻器R组成串联电路电源电压保持8V不变．无论变阻器�片怎样移动 sketch template

百度教育 sketch template

题目小红设计了如图甲所示的电路来测量一个未知电阻的阻值其中Rx为待测电阻R1为电阻箱 S为单刀双掷开关R为定值电阻．实验主要步骤有 sketch template

如图所示是测量小灯泡电阻和电功率的实验电路图当�动变阻器的 �片�左移动时电流表电压表的示数变化情况是 A增大增大 B增大减小 sketch template

如图所示是“测定小灯泡的功率实验的电路图其中电源为三节新的干电池灯泡的额定电压为38V求1当闭合电路的开关时电路中可能出现 sketch template

如图甲所示是“测定小灯泡电功率”实验的装置图，电源电压为4V且保持不变，小灯泡额定电压为25V，阻值约为9Ω，�动变阻器标有“20Ω 1A”字样。 sketch template

下图是小红同学在探究通过电阻的电流跟两端电压的关系时连接的实验电路小明同学在检查电路时�现有两处不妥请指出小明同学认为不妥的理由� � sketch template

如图甲所示是小红同学测定小灯泡电阻的实物连接图．1电源电压6V请用笔画线代替导线帮她完成电路的连接．2电路连接无误后闭合开关 sketch template

101．05河北省甲乙两组同学利用如图所示的电路测定小灯泡的额定功率．已知小灯泡的额定电压为25V所用�动变阻器铭牌上标有 sketch template

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