如左图所示的电路中电源电动势为30v内阻不计l1l2l3为3个相同规格小灯泡这种小灯泡的伏安特性曲线如右图所示．当开关s闭合后 Sketch Coloring Page

如左图所示的电路中电源电动势为30v内阻不计l1l2l3为3个相同规格小灯泡这种小灯泡的伏安特性曲线如右图所示．当开关s闭合后 Template

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tomski如左图所示的电路中电源电动势为30v内阻不计l1l2l3为3个相同规格小灯泡这种小灯泡的伏安特性曲线如右图所示．当开关s闭合后 coloring

如左图所示的电路中电源电动势为30V内阻不计L1L2L3为3个相同规格小灯泡这种小灯泡的伏安特性曲线如右图所示．当开关S闭合后 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

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

百度教育 sketch template

一轮复习：含容电路 知乎 sketch template

如图甲所示的电路中电源电动势为30V内阻不计L1L2L3为3个特殊材料制成的相同规格小灯泡这种小灯泡的伏安特性曲线如图乙所示．当 sketch template

在如图所示的电路中，电源电压保持不变，定值电阻R1的阻值为10Ω，�动变阻器R2上标有“2A”字样。闭合开关S，移动�片P至电路中的电流最大 sketch template

某同学采用如图甲所示的电路测定电源电动势和内电阻已知干电池的电动势约为15V内阻约为2Ω电压表V电流表A�动变阻器有R1和R2各一 sketch template

如图2所示的电路中电源电压不变开关闭合后若�动变阻器的�片P�右端移动则 A电压表的示数和电流表的示数都增大 B电压表的示数和电流 sketch template

如图所示的电路中电源的电压保持不变R1为定值电阻R2为�动变阻器闭合开关S�片P�右移动时则A．电流表A的示数变大B．电压表V的示 sketch template

如图所示的电路图是用来研究通过导体的电流跟导体电阻关系的，其中R1与R2为阻值不同的定值电阻，第一次实验用的定值电阻为R1 ， 闭合开关后，记 sketch template

题目如图所示的U I图象中直线Ⅰ为某电源的路端电压与电流的关系图线直线Ⅱ为某一电阻R的U I图线用该电源直接与电阻R连接成闭合电路 sketch template

如图甲所示的电路中电源电压不变R1为定值电阻．闭合开关调节�动变阻器R2电压表V1V2的示数随电路中电流的变化图线如图乙所示．1 sketch template

如图所示直线A为电源的路端电压U与电流I关系的图象直线B是电阻R的两端电压U与电流I的关系图象用该电源与电阻R组成闭合电路则电阻R sketch template

一轮复习：含容电路 知乎 sketch template

在如图甲所示的电路中电源电动势为30V内阻不计L1L2L3为3个特殊材料制成的相同规格小灯泡这种小灯泡的伏安特性曲线如图乙所示 sketch template

如图1所示的电路中R1为定值电阻R2为�动变阻器电源电压不变．闭合开关S后�片P从a端移动到b端电流表示数I与电压表示数U的变化关系 sketch template

21．在如图所示的电路中电源的电动势E=30V内阻r=10Ω电阻R1=10ΩR2=10ΩR3=30ΩR4=35Ω电容器的电容 sketch template

如图所示的电路中电源电动势E=6V内阻r=1Ω电阻R1=6ΩR2=5ΩR3=3Ω电容器的电容C=2×10 5F若将开关S闭合 sketch template

15．如图所示的电路中已知电源的电动势E=3V内阻r=1Ω电阻R=2Ω求伏特表的示数是多�——青夏教育精英家教�—— sketch template

3．如图所示的电路中电源电动势为E内阻r不能忽略．R1和R2是两个定值电阻L是一个自感系数较大的线圈．开关S原来是断开的．从闭合开关S到 sketch template

如图所示的电路中电源电压保持不变．当�动变阻器的�片P�右�动时电流表和电压表的示数变化情况是 A．电流表和电压表的示数都变大 sketch template

如图所示的电路中电源电动势E=6V内阻r=1Ω电阻R1=6ΩR2=5ΩR3=3Ω电容器的电容C=2×10 5F若将开关S闭合 sketch template

如图所示电路中已知电容C=2μF电源电动势ε=12V内电阻不计R1R2R3R4=1263则电容器极板所携带的电量为 A sketch template

12．在如图所示的电路中电源电压恒定为U电键闭合后将�动变阻器R2的�片P�左�动时电路中的小灯泡L1L 2和L 3的亮度变化情况是 sketch template

如图所示的电路中电源电动势E = 60V 内阻r 06Ω 电阻R2 05Ω 当开关S断开时电流表的示数为15A sketch template

在如图所示的电路中电源电压为12伏且保持不变定值电阻R1的阻值为20欧�动变阻器R2上标有“20Ω 1A 字样．闭合电键S电压表示数为 sketch template

2．如图所示的电路中电源电压恒定为45V开关S闭合后电流表的示数为05A电压表V1的示数为3V当把�动变阻器的�片P移到最右端时 sketch template

如图所示的电路中电源的电动势E和内阻r恒定不变变阻器R1的�片P处在如图位置时电灯L正常�光．现将�片P�右移动则在该过程中 A sketch template

在如图所示的电路ab中电阻R和自感线圈L的阻值都很小．接通K使电路达到稳定灯泡S�光． A．在电路a中断开KS将先变得 sketch template

如图所示的电路中电源两端的电压保持不变闭合开关SS1当�片P 移至�动变阻器R2的A端时电压表V1的示数为U1电压表V2的示数为 sketch template

如图所示的电路中电源电压保持不变当开关S闭合后只有一个电表的示数�生变化若电路中只有一处故障且只�生在电阻R或小灯泡L上则可能是A sketch template

11．在如图所示的电路中电源电压恒定为U电键闭合将�动变阻器R2的�片P�左移动时电路中的小灯泡L1和L2的亮度变化情况是 A．L1 sketch template

如图所示的电路中123456为连接点的标号．在开关闭合后�现小灯泡不亮．现用多用电表检查电路故障需要检测的有电源开关小 sketch template

如图所示的电路中，电源电压保持不变。闭合开关S后，�片P从b端移动到a端的过程，电压表示数U与电流表示数I的关系图像如图所示。下列说法正确的是（ sketch template

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