38．在测定额定电压为电阻约为的小灯泡的额定功率的实验中某同学将器材连成如图所示的电路 �请指出该电路连接中错误或不妥 Sketch Coloring Page

38．在测定额定电压为电阻约为的小灯泡的额定功率的实验中某同学将器材连成如图所示的电路 �请指出该电路连接中错误或不妥 Template

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tomski38．在测定额定电压为电阻约为的小灯泡的额定功率的实验中某同学将器材连成如图所示的电路 �请指出该电路连接中错误或不妥 coloring

图甲是小灯泡L和定值电阻R的电流与电压的关系，则R的电阻为Ω，现将它们并联后接在电压为2V的电源两端，如图乙，则干路中的电流是A；若将它们串联 sketch template

18．用伏安法测量一只定值电阻的实验所需的器材实物如图各器材规格为 �待测电阻RX �直流毫安表 �直流电压表 �直流电源输出电压3V sketch template

38．在测定额定电压为电阻约为的小灯泡的额定功率的实验中某同学将器材连成如图所示的电路 �请指出该电路连接中错误或不妥 sketch template

百度教育 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

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

在测量额定电压为2 5V小灯泡的电阻实验时 如图所示 实验元件完好导线连接稳固闭合开关 灯泡不亮检查�现电出卷� 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

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

17．在测定额定电压为38V的小灯泡额定功率的实验中小许连接了如图甲所示的电路电源的电压为6V且保持不变．1请将实物电路图连接完整 sketch template

题目小明想测量额定电压为U额的小灯泡的额定功率设计了如图所示的电路已知电源电压为U定值电阻的阻值为R0请帮小明将实验步骤补充完整 sketch template

在“伏安法测电阻 实验中小灯泡额定电压为3．8V电源电压为6V1小敏连接了如图所示的部分实物电路请你用笔画线代替导线将电路连接 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

题目在测定额定电压为“25V 小灯泡电功率正常�光时电阻约为8Ω的试验中电源为两节新干电池1连接电路时开关应 请用笔画线 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

在“测定小灯泡电功率 的实验中小灯泡的额定电压是25V�动变阻器上标有“10Ω 2A 字样小灯泡的电阻接�10Ω 1连接不完整的 sketch template

某同学测定额定电压为38V小灯泡的额定功率灯泡的电阻约为15Ω他所连接的电路如图甲所示．1请指出该电路中的两个错误或不当之处．� 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

兴趣实验小组在做“测量小灯泡正常�光时的电阻”的实验时选用的实验器材：标有“2 5V”字样的待测小灯泡、两节新出卷� sketch template

在“测定额定电压为25V小灯泡的电功率 的实验中．芳芳同学已连接好如图2的部分电路．已知电源电压为6V�动变阻器R1�动变阻器R2灯泡 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

在测定额定电压为38V小灯泡电阻的实验中1小东没有连接完整的实物电路如图1所示请你用笔画线代替导线将所缺的导线补上．2在连接电路 sketch template

为测定额定电压为38伏的小灯泡的额定功率提供了如图所示的器材其中灯泡电阻约为10欧�动变阻器最大阻值为20欧要求1在下面方框 sketch template

在测定额定电压是22V的小灯泡的额定功率的实验中1请你在图中将没有连接完整实验电路补充完整并在右图的方框中画出实验电路图．2 sketch template

在“测定额定电压为38V的小灯泡的额定功率 的实验中有如下的操作步骤 A．读出电流表上的电流值 B．闭合开关 C．断开开关按电路图 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：伏安法测电阻 知乎 sketch template

实验小组进行了“测定额定电压是25V的小灯泡功率 的实验 1实验记录与计算如下表 电压U/V 15 20 25 电流I/——青 sketch template

36．用伏安法测定额定电压为3．8V小灯泡的额定功率 1将下图中的�动变阻器接入电路要求�片P�左移动时小灯泡变暗 2小灯泡 sketch template

在测定�属丝的电阻率的实验中�用螺旋测微器测量�属丝的直径其示数如图a所示则该�属丝的直径为d=1880mm．�某同学采用伏安法 sketch template

在“测定额定电压为25V小灯泡的电功率 的实验中．芳芳同学已连接好如图2的部分电路．已知电源电压为6V�动变阻器R1�动变阻器R2灯泡 sketch template

在“测定额定电压为25V小灯泡的电功率 的实验中小敏同学已连接好如图甲所示的部分电路．1在小敏所连接的电路中有两根导线还没接好请你 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 sketch template

测定额定电压为38V的小灯泡的额定功率1所需器材 ．2画出实验所用电路图．3实验原理为 ．4连接电路时�动变阻器�片放在 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 sketch template

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