试题与答案

“探究串联电路电压的规律”实验中: (1)用电压表测灯L2两端的电压,连接电路如

题型:实验题

题目:

“探究串联电路电压的规律”实验中:

(1)用电压表测灯L2两端的电压,连接电路如图甲所示。图中只有一根导线连错了,请你在连错的导线上画“×”,并画出正确的电路连接。

(2)改正电路后,闭合开关。如图乙所示,电压表的示数为 _________ V,若电源电压为

3V,则灯L1两端的电压是_________V。

(3)如图所示的电阻箱,其表示的电阻大小为                   欧姆。

答案:

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参考答案:A,B,C解析:报考公告的内容应包括:(1)拟录用人员职位、数量、报考的资格条件;(2)报名的日期、地点和报名手续;(3)报考的科目、程序和考试时间、地点等。

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He paused for a moment, looking up as if trying to remember it       , and then he smiled and        the following:
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