一只标有“24v 40w 的灯泡接在36v的电源上要使它正常�光还要串联一个 Ω的电阻此电阻消耗的电功率是 W此电路工作5min消耗 Sketch Coloring Page

一只标有“24v 40w 的灯泡接在36v的电源上要使它正常�光还要串联一个 Ω的电阻此电阻消耗的电功率是 W此电路工作5min消耗 Template

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tomski一只标有“24v 40w 的灯泡接在36v的电源上要使它正常�光还要串联一个 coloring

一只标有“24V 40W 的灯泡接在36V的电源上要使它正常�光还要串联一个 Ω的电阻此电阻消耗的电功率是 W此电路工作5min消耗 sketch template

一只灯泡上标有“12V 12W 的字样若不考�温度对灯丝电阻的影响则1这只灯泡的额定电流是电阻是 2要把这只灯泡接在电压为 sketch template

电工师傅常用一只标有“220V 40W 的灯泡L0取代保险丝来检查新安装的照明电路中每个支路的情况如图所示当只闭合SS1时L0不亮当只 sketch template

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

甲乙两个灯泡分别标有“220V 40W 和“220V 60W 字样并联在220V的电源上对于通过两灯泡灯丝的电流下列说法正确的是 sketch template

电工师傅常用一只标有“220V 40W 的灯泡L取代保险丝来检查新安装的照明电路中每个支路的情况如图所示．当只闭合SS1时L不亮当只闭合 sketch template

把标有“220V 100W 和“220V 40W 字样的两个灯泡串联接在220伏特的电路中下列说法中正确的是 A．100W灯泡比40W sketch template

有一只标有“PZ220 40 的灯泡接在220V家庭电路中求1灯泡正常�光时的电阻 2灯泡正常�光时通过它的电流 3 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

小艳同学某天在家开灯时灯不亮经检查�现保险丝被烧断．她在爸爸的协助下用一盏标有“220V 40W 的灯泡L0取代保险丝接入电路如图所示 sketch template

把一个标有“220V 40W 灯泡接在电压为110V电源上使用该灯泡的额定状态下的电阻额定电流额定功率实际状态下的电阻电流实际功率 sketch template

78．一只标有 sketch template

有一只标有“PZ220 40 的灯泡接在220V家庭电路中求1灯泡正常�光时的电阻 2灯泡正常�光时通过它的电流 3 sketch template

如图所示将一只标有“12V 6W 的灯泡L1和“6V 的灯泡L2并联后接在6V的电源上则 A灯泡L1比灯泡L2亮B灯泡 sketch template

24v开关电源的电路原理详解 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

一个标有“220V40W 的电灯接在照明电路中求�电灯的灯丝的电阻是多大�正常工作2小时消耗多�度电能�若加在电灯上的实际电压只有 sketch template

如图所示将标有“12V 6W 的灯泡L1和“6V 的灯泡L2并联后接在6V的电源上则 A．两灯的实际功率之和等于12WB．两灯 sketch template

标有“220V 40W 的灯泡正常工作时通过它的电流是多�它正常工作时的电阻有多大如果把它接人一个110V电压的电路中它实际消耗的电 sketch template

甲乙两个灯泡分别标有“220 V 40W “220 100W 字样并联在220 V电源上通过灯丝电流大的是 灯泡该灯泡的电阻是 sketch template

甲乙两个灯泡分别标有“220 V 40W “220 100W 字样并联在220 V电源上通过灯丝电流大的是 灯泡该灯泡的电阻是 sketch template

把标有“PZ220V 15W 和“PZ220V 40W 的甲乙两个灯泡串联在家庭电路中设灯丝的电阻不变下列判断正确的是A．甲乙两灯消耗 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

如图所示将一只标有“12V 6W 的灯泡L1和“6V 的灯泡L2并联后接在6V的电源上则 A灯泡L1比灯泡L2亮B灯泡 sketch template

2．把一个标有“36V 9W 的灯泡与�动变阻器串联接在电源上可组成一个亮度可调的电路．为使�动变阻器从端�到另端时灯泡的功率在4瓦 sketch template

在家庭电路中照明灯泡与控制它的开关的连接方式是 一只标有“220V 60W 字样的白炽灯正常工作10s消耗的电能为 J——青夏教育精英 sketch template

有两只灯泡分别标有“220V 15W 和“220V 100W 的字样．如将它们串联接在电压为380V的动力电源上则 A．两只灯泡均被 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

有一只标有“8 V 2 W 的小灯泡如果把它接在12 V的电源上使用必须联一个阻值为 Ω的电阻才能使小灯泡正常�光此时电阻上消耗的电 sketch template

一只照明灯标有“220V100W 其中“220V 表示灯泡的 是220V“100W 是100W若不考�电阻随温度的影响把 sketch template

如图电路中灯泡L1标有“24V 8W L2标有“24V 16W 电源电压恒为24V闭合开关后 A．电流表A1和A2的示数相同B sketch template

把标有“10Ω 20W 和“10Ω 40W 的定值电阻串联后接在12V的电源上两个电阻消耗的电功率之比是 A．1∶1B．1∶2 C sketch template

题目有四只“110V40W 的灯泡要把它们接在220 V电源上某同学对甲乙两种接法分析如图所示正确的是A 甲接法灯能正常�光 sketch template

图所示的电路中电源两端电压U保持不变当只闭合开关S1时电压表的示数为U1电流表的示数I1为1A电阻R1消耗的电功率P1为4W电阻R2 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

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