4．某同学在利用电压表和电流表测电阻时得到两组数据后画出了两条直线的图像如右图所示关于两电阻大小的比较正确的是 A．r甲 Sketch Coloring Page

4．某同学在利用电压表和电流表测电阻时得到两组数据后画出了两条直线的图像如右图所示关于两电阻大小的比较正确的是 A．r甲 Template

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sketch #3476 Happy valentines day! Simona Honigmelone

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tomski4．某同学在利用电压表和电流表测电阻时得到两组数据后画出了两条直线的图像如右图所示关于两电阻大小的比较正确的是 coloring

在用电流表和电压表测电源的电动势和内阻实验中某同学利用测出的7组UI值画出U I图象其中正确的是 题目和参考答案——青夏教育精英家教�—— sketch template

如图甲所示是小明“探究电流与电压、电阻的关系”的实验电路图。选用的实验器材是：电源3V、电流表（00 6A）、 出卷� sketch template

电表（电压表和电流表）的读数知乎 sketch template

小华同学做“用电流表电压表测电阻实验”，实验器材齐全且完好．�他连接电路并将变阻器的�片放置于一端，闭合电键，观察到电流表电压表示数如图（a sketch template

30．用电流表和电压表测定电池电动势和内电阻的实验中某同学根据测量数据画出了U I图象则可根据图象读出电池的电动势E＝ V求出电池的内 sketch template

百度教育 sketch template

题目1在实验室某同学用多用电表粗测一段样品的电阻经正确操作后用“×100Ω 档时�现指针偏转情况如图所示则他应该换用档填 sketch template

某同学在用电压表和电流表“测定小灯泡实际功率 的实验中当他闭合开关移动变阻器�片过程中�现灯泡变亮时电压表示数反而减小小灯泡变暗时 sketch template

在做“用电流表和电压表测电池的电动势E和内电阻r 的实验时部分器材参数如下电压表电流表定值电阻R0�动变阻器R．1小红按如图甲所 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

初二物理电流表、电压表和电路练习题 Word文档在线阅读与下载无忧文档 sketch template

题目同学利用电压表和电流表测量电阻R1的阻值电源选用两节干电池1按图甲电路将图乙中电流表正确连入电路 2该同学检查电路连接 sketch template

题目物理兴趣小组的同学们想探究通过导体的电流与电压的关系实验用具有电源电压表电流表�动变阻器规格不同的定值电阻开关和导线等 sketch template

1．伏安法原理利用安培表与伏特表测量通过电阻的电流及电阻两端的电压再利用计算电阻的阻值 1外接法由于 表的 作用电阻的测量值 sketch template

百度教育 sketch template

小华同学在做“用电流表电压表测电阻 的实验中电源电压保持不变所用电压表015伏量程损坏但03伏量程完好其余器材均完好所用�动 sketch template

如图16所示的电路是用电流表电压表测电阻的实验装置示意图 图16 1在右边方框内画出图甲的电路图 2本实验的原理是 3 sketch template

在“用电流表和电压表测定电池的电动势和内电阻 的实验中某同学通过测量两个电池的电流和电压得到了如图3所示的U I图线从图象中可以看出 sketch template

某同学在没有电流表的情况下利用电压表和已知阻值的定值电阻R0测量未知电阻Rx阻值图所示中无法实现测量Rx阻值的电路图是 题目和参考答案 sketch template

“探究电流与电阻关系”的实验实物图如图甲所示，定值电阻的阻值分别为5Ω、10Ω、15Ω、20Ω。（1）连接电路时�现，电路中有一根导线连接错误 sketch template

某同学在实验室准备用以下器材测一个电源的电动势E和内阻r要求测量尽量准确能测量多组数据且�动变阻器调节方便．A．电流表G量程500μA sketch template

某同学在探究串联电路电压规律的实验．按右图所示的电路图连接电路闭合开关用电压表测出L1两端的电压在测L两端的电压时将电压表所接的B接点 sketch template

22．两位同学在实验室利用如图a所示的电路测定定值阻R0电源的电动势E和内电阻r调节�动变阻器的�动触头P�某一方�移动时一个同学 sketch template

题目某同学利用图甲所示的电路探究“电流与电压的关系实验中电源电压保持不变1根据甲图电路把乙图的实物连接完整 2开关S sketch template

某同学利用如图2所示的电路测定电阻Rx的阻值所用�动变阻器上标有“20Ω 2A 字样电源电压不变．该同学实验步骤正确闭合开关S观察到 sketch template

两位同学在实验室利用如图a所示的电路测定定值电阻R0电源的电动势E和内电阻r．调节�动变阻器的�动触头P�某一方�移动时一个同学记录了 sketch template

题目实验小组的同学们利用如图所示的装置进行电学实验的复习实验中使用的小灯泡上标有“22V 字样实验过程中的有关证据记录如表实验次数 sketch template

4．在做伏安法测电阻的实验中某同学把电流表和电压表的位置接反了这样可能造成的后果是 A．可能烧坏小灯泡 B．可能烧坏电流表或电压表 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

某同学做“用电流表和电压表测定电池的电动势和内电阻 实验根据实验数据得到如图12所示的U I图线由图可知该电源电动势为 V该电源的 sketch template

题目甲乙两位同学在实验室利用如图a所示的电路测定定值电阻R0 电源的电动势E和内电阻r调节�动变阻器的�动触头P�某一方�移动时 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

某同学在用电压表测量串联电路和并联电路两端电压时分别按图甲乙两电路图连接．1按图甲连接电压表在a处时闭合开关S后电压表读数为2 sketch template

某同学利用图（a）所示电路测量电容器充电时两极板间的电压随时间的变化 sketch template

4．某同学在利用电压表和电流表测电阻时得到两组数据后画 出了两条直线的图像如右图所示关于两电阻大小的比较正 确的是 A．R甲 sketch template

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