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电场强度与场强叠加 · 历年高考物理真题与解析

本页汇总 高考真题检索 的「电场强度与场强叠加」高考物理真题共 3 道,覆盖 2012–2023 年,最常出题型为 单选题;含完整答案与解析。

3questions
Past questions included
2012–2023
Years covered
区分题为主
Overall difficulty
Single-choice
Most common question type
Practice This Topic Do 5 reliable past questions first, then see the answers and explanations after you submit
常用解题方法Force Analysis正交分解矢量三角形
常见易错点多解遗漏矢量方向错误
Core competencies应用理解

Past Question List

2023 National Gaokao Single choice Differentiating Question 5 2023_湖南卷 (2023·物理)

5.如图,真空中有三个点电荷固定在同一直线上,电荷量分别为 $Q_{1} , Q_{2}$ 和 $Q_{3}, P$ 点和三个点电荷的连线与点电荷所在直线的夹角分别为90°、60°、和30°。若 $P$ 点处的电场强度为零,$q>0$ ,则三个点电荷的电荷量可能为

A. $Q_{1}=q, \quad Q_{2}=\sqrt{2} q, \quad Q_{3}=q$
B. $Q_{1}=-q, Q_{2}=-\frac{4 \sqrt{3}}{3} q, Q_{3}=-4 q$
C. $Q_{1}=-q, Q_{2}=\sqrt{2} q, Q_{3}=-q$
D. $Q_{1}=q, Q_{2}=-\frac{4 \sqrt{3}}{3} q, Q_{3}=4 q$
2012 Jiangsu Gaokao Single choice Differentiating Question 1 2012_江苏卷 (物理)

1. (3分)真空中,A、B两点与点电荷Q的距离分别为r和3r,则A、B两点的电场强度
大小之比为(  )

A. 3:1
B. 1:3
C. 9:1
D. 1:9

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