某同学用电压表测小灯泡的电压．当闭合电路开关时�现电压表指针指在如图所示的位置这说明 A．电压表的量程选得太小了应选15v的量程b Sketch Coloring Page

某同学用电压表测小灯泡的电压．当闭合电路开关时�现电压表指针指在如图所示的位置这说明 A．电压表的量程选得太小了应选15v的量程b Template

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sketch #5214 Crying with a Smile by Bill Kody

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sketch #5214 Crying with a Smile by Bill Kody

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tomski某同学用电压表测小灯泡的电压．当闭合电路开关时�现电压表指针指在如图所示的位置这说明 a．电压表的量程选得太小了应选15v的量程b coloring

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

某实验小组的同学用“伏安法测量小灯泡电功率待测小灯泡额定电压为38V小灯泡的额定功率估计在1W 左右．1请用笔画线代替导线完成图 sketch template

用电流表和电压表测25V小灯泡额定功率．实验电路如图甲所示．闭合开关调节�动变阻器�片当小灯泡正常�光时电流表示数如图乙所示．1 sketch template

物理课上小华同学用两节干电池电压表电流表和�动变阻器等实验器材测定标有“15V 字样小灯泡的电功率．1小华同学连接完图所示的电路 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 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

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“测定小灯泡额定功率实验中小华同学用如图所示的实验器材进行了实验其中电源电压保持6V不变小灯泡的额定电压为38V小灯泡的灯丝电阻 sketch template

用电压表和电流表测额定电压为25V的小灯泡正常�光时的电阻1请在下面的方框中画出实验电路图 2将下图中的电压表接入电路 3小 sketch template

如图所示是某同学“测定小灯泡电功率 时连接的电路小灯泡额定电压为25V所用电源电压恒为3V 1连接电路时开关应 闭合开关前�动 sketch template

小红同学用电池组电压表电流表和�动变阻器等实验器材测定标有“25V 小灯泡的额定功率1如图所示小红连接的电路还没有完成如果 sketch template

为了“测量小灯泡的电功率”，某小组同学设计了如图甲所示的电路图，已知小灯泡上标有“25V”字样。请回答下列问题： 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

小王同学做“测定小灯泡额定功率 的实验所用实验器材包括电源开关电压表电流表各一个导线若干待测额定电压为25V的小灯泡若干 sketch template

某同学想用电流表电压表测量小灯泡L�光时的电阻他已连接了部分电路如图甲所示．请你接着完成下列步骤1用笔画线代替导线将电流表和电压 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

28． 如图所示用电流表电压表测小灯泡的电阻． �图中表C是 表． �若将开关闭合两表读数如图所示则此时电流为I＝ A待测电阻为 Ω sketch template

某同学探究一个额定电压22V额定功率11W的小灯泡两端的电压与通过灯泡的电流的关系．器材为电源开关�动变阻器电压表电流表小灯泡 sketch template

某同学利用如图甲的电路进行“测小灯泡电功率 的实验已知小灯泡的额定电流是04A电源电压恒定不变．1该同学�现电流表接入电路前的指针如 sketch template

某同学用多用电表按如图所示电路进行了正确的测量闭合开关S后多用电表直接测出的是 A．灯泡L的电功率 B．灯泡L的电阻 C．通过灯泡L的电流 sketch template

某实验小组的同学用“伏安法测量小灯泡电功率待测小灯泡额定电压为38V小灯泡的额定功率估计在1W左右．1请用笔画线代替导线完成图乙 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

在“用电流表电压表测电阻 的实验中甲小组同学连接的电路如图14a所示其中有一根导线尚未连接请用笔画线代替导线补上补上后要求闭合 sketch template

在测定“小灯泡电功率 的实验中电源电压为3V小灯泡额定电压为25V电阻约为10Ω1小青同学设计了实验电路图并按电路图连接好了 sketch template

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

测小灯泡的电阻1如图1中所示是用电压表和电流表测小灯泡电阻的实验电路图闭合开关S时变阻器�片P应放在变阻器的 端．2当电压表示数 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

题目小红小亮同学做“测量小灯泡电功率 的实验小灯泡标有“ 字样1如图甲所示是小红所连接的不完整实验电路请你用笔画线代替导线 sketch template

用电压表测小灯泡两端电压如图所示的四种电路中正确的是题目和参考答案——青夏教育精英家教�—— sketch template

某班同学做“测定一个小灯泡的功率 的实验所用灯泡的额定电压均是22V．1如图是小明同学的实验电路但连接不完整请你给帮他完成电路的 sketch template

题目如图1所示某同学在“测量小灯泡电功率 的实验中误将电压表并联在�动变阻器两端他从�片置于最右端时开始记录第一组数据调节�片测得 sketch template

阳阳同学用如图所示的实验电路“测定额定电压为25V小灯泡的额定电功率．1开关试触时阳阳�现小灯泡不�光电流表无示数电压表示数 sketch template

在“用电流表测电流 的实验中小刚同学连接的电路如图小丽�现其中有两处错误这两处错误是1 2 ．题目和参考答案——青夏教育 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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