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渝东六校共同体高2024届(高二上)联合诊断性测试
物理参考答案及评分参考标准
10431748105
一、选择题(小题,共分,其中到题选对得分,到选全得
30
分,选不全得分,有错得分。
题号12345678910
答案CABDACDBCADACD
18
二、实验题(共分)
11.(4分)
(1)2【1分】(2)相反【1分】(3)4104【2分】
12.12
(分)
10.644~0.6472
()【分】
20.61312
()【分】【分】甲【分】
UD2
33
()【分】
4IL
43
()电表读数误差【分】
13.1012V2-1V3200V/m
(分)();();(),方向沿电场线斜向下
16
【详解】()由题意可知,静电力做负功WAB210J
W
据UABAB············································································(2分)
q
得UAB2V·············································································(1分)
根据U·····································································(1分)
ABAB
则U1V································································(1分)
BAAB
222·············2
()沿着电场方向的位移为d210cos60m110m(分)
U
EAB200V/m···································································(2分)
d
······························································1
方向:沿电场线斜向下(分)
-5-5
14.1211×10C21.7×10C30.1s
(分)()(
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