一个标有“10v 20w 的小灯泡它正常工作时灯丝的电阻是多�当它两端所加电压为5v时它的实际功率是多�瓦——青夏教育精英家教�—— Sketch Coloring Page

一个标有“10v 20w 的小灯泡它正常工作时灯丝的电阻是多�当它两端所加电压为5v时它的实际功率是多�瓦——青夏教育精英家教�—— Template

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Zay Lin
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sketch #4937 Favorite animal competition runner-up: White Tiger by Deepak Kaushik

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tomski一个标有“10v 20w 的小灯泡它正常工作时灯丝的电阻是多�当它两端所加电压为5v时它的实际功率是多�瓦——青夏教育精英家教�—— coloring

一个标有“10V 20W 的小灯泡它正常工作时灯丝的电阻是多�当它两端所加电压为5V时它的实际功率是多�瓦——青夏教育精英家教�—— sketch template

如下左图所示是标有“25V 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

百度教育 sketch template

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

小阳同学探究小灯泡�光时的亮度与哪些因素有关．他用九只不同规格的小灯泡分别接入电路使它们都正常�光并用电压表和电流表分别测得小灯泡正常�光 sketch template

0/1 10V LED调光驱动器知乎 sketch template

学校实验室新进了一批“25V 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

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

一分钟带你认识灯界的新晋�红来自测试的文章 sketch template

一轮复习：描绘小灯泡伏安特性曲线知乎 sketch template

题目灯泡L上标有“6V 6W 字样测得该灯泡的电流随电压变化关系如图甲所示现把灯泡L接入如图乙所示的电路中若电路电压为 sketch template

题目小明所在的实验小组在“测定小灯泡电阻 的实验中所用灯泡的额定电压为25 V1小明采用图甲所示的方案测量时�现闭合开关后无 sketch template

一个标有“10V 20W 的小灯泡它正常工作时灯丝的电阻是多�当它两端所加电压为5V时它的实际功率是多�瓦——青夏教育精英家教�—— sketch template

把一个标有“10V3W 的小灯泡和定值电阻R串联后接在电压为12V的电源上．小灯泡恰能正常工作通过计算回答1通过小灯泡的电流是多� sketch template

如图所示是家庭中常用的一种灯泡以及灯泡上的铭牌． 1根据它的铭牌你能知道哪些物理量 2根据铭牌上的信息通过计算你还能知道哪些物理 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

有一个标有“8V 4W 的小灯泡如果接在12V的电源上必须串串联一个阻值为88Ω的电阻才能使小灯泡正常�光此时在这个电阻上消耗的电功率是 sketch template

有两只分别标有“6V 9W 和“6V 6W 字样的小灯泡L1和L2不考�灯丝的电阻随温度的变化求1小灯泡L1正常�光时通过它的电流 sketch template

小明利用标有“6V 6W 的灯泡L1和标有额定电压为6V的L2进行实验1分别对通过L1和L2中的电流和两端电压进行测量绘制了电流随两端 sketch template

题目一个小灯泡上标有“6V02A 字样现要描绘该灯泡的伏安特性曲线有下列器材供选用A．电压表0 5V内阻15kΩ B sketch template

一只标有“25V 2W 字样的小灯泡正常�光时求1通过灯泡的电流．2这个灯泡正常工作10min消耗的电能．题目和参考答案 sketch template

一个标有“220V 40W 的灯泡接在110V的电路上它的实际功率是 当它和“220V 100W 的灯泡串联时 亮——青夏教育精英家教�—— sketch template

题目如图所示电源电压为6V小灯泡标有“4V 16W 的字样定值电阻R=20Ω不考�温度对灯丝电阻的影响�动变阻器上标有“0 sketch template

如图所示小灯泡上标有“25V03A 字样则该小灯泡正常�光时灯丝的电阻是 Ω额定功率是 W数据均保留到小数点后两位．实验时当 sketch template

将标有“220V 40W 的灯泡接在200V的电路中灯泡消耗的实际功率 额定功率选填“大于 “等于或“小于如果该灯泡正常�光5h sketch template

百度教育 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

一个标有“10V 20W 的小灯泡它正常工作时灯丝的电阻是多�当它两端所加电压为5V时它的实际功率是多�瓦——青夏教育精英家教�—— sketch template

如图所示的电路中小灯泡L上标有“6V 6W 字样忽略温度对灯丝电阻的影响1求小灯泡正常�光时的电流和电阻2若电源电压是9V sketch template

如图所示是一个可以调节亮度的台灯电路图，小灯泡上标有“6V3W”字样，电源电压为9V，变阻器的调节范围是030Ω，问： 1小灯泡的电阻多 sketch template

13．如图4所示电源电压和灯泡电阻都保持不变当�动变阻器的�片P由中点�右移动时下列判断不正确的是 A．电流表和电压表的示数都增大 B sketch template

24．有一个小灯泡标有25V字样要测定它正常�光时的电阻约5 1用笔画线把下列器材连接成实验电路图 2某同学正确连接实物图 sketch template

把一个标有“6V3W 的灯泡接在10V的电源上要使灯泡正常�光需要串联串联联一个多�欧的电阻此时电阻消耗的功率是多�W．题目和参考 sketch template

如图所示标有“4V 1W 的小灯泡与一个�动变阻器串联接到10V的电源上当�动变阻器的�片P移到中点时灯恰好能正常�光则此时电流表的示 sketch template

如图—8所示是标有“25V 字样的小灯泡L的电阻值随它两端电压变化的图像将小灯泡L和电阻R接入如图—9所示的电路中电源电压为6V当开关 sketch template

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