(完整word版)高二物理电场练习题专题复习及答案(word文档良心出品).pdf

《(完整word版)高二物理电场练习题专题复习及答案(word文档良心出品).pdf》由会员分享，可在线阅读，更多相关《(完整word版)高二物理电场练习题专题复习及答案(word文档良心出品).pdf（6页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、高二复习电场练习题专题一、单选题：（每题只有一个选项正确，每题4 分）1、以下说法正确的是：（）A只有体积很小的带电体，才能看做点电荷B电子、质子所带电量最小，所以它们都是元电荷C电场中A、B 两点的电势差是恒定的，不随零电势点的不同而改变，所以UABUBAD电场线与等势面一定相互垂直，在等势面上移动电荷电场力不做功2、在真空中同一直线上的A、B 处分别固定电量分别为2Q、Q 的两电荷。如图所示，若在 A、B 所在直线上放入第三个电荷C，只在电场力作用下三个电荷都处于平衡状态，则C 的电性及位置是()A正电，在A、B 之间B正电，在B 点右侧C负电，在B 点右侧D负电，在A 点左侧3、如图所示

2、，实线为不知方向的三条电场线，从电场中M 点以相同速度飞出a、b 两个带电粒子，仅在电场力作用下的运动轨迹如图中虚线所示。则（）Aa 一定带正电，b 一定带负电Ba 的速度将减小，b 的速度将增加Ca 的加速度将减小，b 的加速度将增加D两个粒子的电势能一个增加一个减小4、某静电场的电场线分布如图所示，图中P、Q 两点的电场强度的大小分别为EP和 EQ，电势分别为P和 Q，则()AEPEQ，PEQ，PQCEPQDEPEQ，PQ5、一个点电荷，从静电场中的a 点移到 b 点，其电势能的变化为零，则（）A、a、b 两点的场强一定相等；B、该点电荷一定沿等势面移动；C、作用于该点电荷的电场力与其移动

3、方向总是垂直的；D、a、b 两点电势一定相等。6、在点电荷Q 形成的电场中有一点A，当一个 q 的检验电荷从电场的无限远处被移到电场中的 A 点时，电场力做的功为W，则检验电荷在A 点的电势能及电场中A 点的电势分别为（规定无限远处电势能为0）：AAAWWq，BAAWWq，CAAWWq，DAAWqW，7、如图所示，光滑绝缘水平面上带异号电荷的小球A、B，它们一起在水平向右的匀强电场中向右做匀加速运动，且保持相对静止。设小球A、的带电量大小为QA，小球 B 的带电量大小为QB，下列判断正确的是（）、小球A带正电，小球B带负电，且QA QB，、小球A带正电，小球B带负电，且QA QB，、小球A带负

4、电，小球B带正电，且QA QB8、如图所示，在竖直放置的半圆形光滑绝缘细管的圆心O 处固定一点电荷，将质量为m、电荷量为q 的小球从管的水平直径的端点A 由静止释放，小球沿细管滑到最低点B 时，对管壁恰好无压力。若小球运动过程中所带电荷量不变，则固定于圆心处的点电荷在AB 弧中点处的电场强度大小是（）AmgEqB2mgEqC2mgEqD3mgEq9、如图所示，在竖直向上的匀强电场中，一根不可伸长的绝缘细绳的一端系着一个带电小球，另一端固定于O 点，小球在竖直平面内匀速圆周运动，最高点为a，最低点为b。不计空气阻力，则：（）A小球带负电B电场力跟重力平衡C小球从a 点运动到b 点的过程中，电势能

5、减小D小球在运动过程中机械能守恒10、如图所示,竖直放置的劲度系数为k 的轻质弹簧,上端与质量为m的小球连接,下端与放在水平桌面上的质量为M的绝缘物块相连,小球与弹簧绝缘,小球带正电,带电荷量为q,物块、弹簧和小球组成的系统处于静止状态.现突然加上一个竖直向上,大小为 E的匀强电场,某时刻物块对水平面的压力为零,则从加上匀强电场到物块对水平面的压力为零的过程中,小球电势能改变量的大小为()A.gkmMqE)(B.kmMqE)(gC.kqEMg D.kqEmg二、多选题：（每题有多个选项正确，选错、多选不得分，漏选得3 分，每题6 分）11、如图所示，a、b 是竖直方向上同一电场线上的两点，一带

6、负电质点在a 点由静止释放，到达 b 点时速度最大。则不正确的 是()Aa 点的电势高于b 点的电势Ba 点的电场强度大于b 点的电场强度C质点从a 点运动到b 点的过程中电势能增加D质点在 a 点受到的电场力小于在b 点受到的电场力a b E A B 文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K

7、6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4

8、C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8

9、D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU

10、2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4

11、D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7

12、X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V7文档编码:CU2K6K4K8O5 HS4D4C5D10S6 ZU7X8D6K2V712、如图

13、所示，在正方形的四个顶点各放一电荷量均为Q 的点电荷(电性如图所示)，a、b、c、d 是正方形边长的中点，则以下说法中正确的是()Aa、b、c、d 四点的场强相同Ba、c 两点的场强一定等大且反向Cb、d 两点的场强一定等大且同向De点的场强一定为零13、如图所示平行直线表示电场线，但未标方向，带电为+10-2C 的电荷在电场中只受电场力作用，由 A 移至 B 点，动能损失0.1J，若A=10V，则（）A、B 点电势B=0V B、电场方向从右向左C、运动轨迹可能为1 D、运动轨迹可能为2 14、如图所示，a、b 带等量异种电荷，M，N 是 a、b 连线的中垂线，现有一个带电粒子从M 点以一定的

14、初速度vo射出，开始一段轨迹如图中实线所示，不考虑粒子重力，则在飞越该电场的过程中（）A该粒子带负电B该粒子的动能先减小后增大C该粒子的电势能先增大后减小D该粒子运动到无穷远处，速率大小一定仍为vo15、如图所示,长为 L,倾角为 的光滑绝缘斜面处于水平向右的匀强电场中。一电荷量为+q，质量为 m 的小球,以初速度v0由斜面底端的M 点沿斜面上滑，到达斜面顶端N 的速度仍为v0则（）A小球在N 点的电势能小于在M 点的电势能BM、N 两点的电势差为mgLsin/q C电场强度等于mgtan/q D电强强度等于mgsin/q 三、计算题：（3 题，每题10 分，共 30 分）16、在场强为E 的

15、匀强电场中，取O 点为圆心，r 为半径作一圆周，在O 点固定一电荷量为 Q 的点电荷，a、b、c、d 为相互垂直的过圆心的两条直线和圆周的交点当把一检验电荷 q 放在 d 点恰好平衡时(如图所示)(1)匀强电场场强E 的大小，方向如何？(2)检验电荷 q 放在点 c 时，受力Fc的大小、方向如何？(3)检验电荷 q 放在点 b 时，受力Fb的大小、方向如何？文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2

16、N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV

17、2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 Z

18、V2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3

19、ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3

20、 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H

21、3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3

22、H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E317、如图所示，电子以vo的速度沿与电场垂直的方向从A 点飞入匀强电场，并从另一端B点沿与场强成120o角的方向飞出，设电子的电荷量为e,质量为 m，求 A、B 两点间的电势差是多少？（不计电子的重力）18、如图所示，在竖直平面内，光滑绝缘直杆AC 与半径为R 的圆周交于B、C 两点，在圆心处有一固定的正点电荷

23、，B 为 AC 的中点，C 点位于圆周的最低点。现有一质量为m、电荷量为-q、套在杆上的带负电小球从A 点由静止开始沿杆下滑。已知重力加速度为g，A 点距过 C 点的水平面的竖直高度为3R，小球滑到B 点时的速度大小为gR2。求：（1）小球滑至C 点时的速度的大小；（2）A、B 两点的电势差ABU；（3）若以 C 点作为零电势点，试确定A 点的电势。3RA B C+R 文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3

24、H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W

25、3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2

26、W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z

27、2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9

28、Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S

29、9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10

30、S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3答题卷班级：学号：姓名：分数：一、单选题（每题4 分）题号1 2 3 4 5 6 7 8 9 10 答案二、多选题（每题6 分，漏选3分）题号11 12 13 14 15 答案三、计算题：（3 题，每题10 分，共 30 分）16、17、18、3RA B C+R 文档编码:CV5X7W9K10R2

31、HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2

32、 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R

33、2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10

34、R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K1

35、0R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K

36、10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9

37、K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3答案：一、单选题（每题4 分）题号1 2 3 4 5 6 7 8 9 10 答案D B C D D A D

38、D B A 二、多选题（每题6 分，漏选3分）题号11 12 13 14 15 答案ACD BD ABC AD ABC 16、解析：(1)由题意可知：F1kQqr2，F2qE 由于 F1F2，所以 qEkQqr2，EkQr2匀强电场方向沿db 方向(2)检验电荷放在c 点：EcE21E22E2kQr2所以 FcqEc2kQqr2方向与 ac 方向成 45 角斜向下(如图所示)(3)检验电荷放在b 点：EbE2E2E2kQr2所以 FbqEb2kQqr2，方向沿db 方向17、【分析解答】0030cosvvB2022121mvmveUBABemvUAB62018、【解析】(1)B C 3mgR/

39、2=mvc2/2-mvB2/2 vc=gR7(2)AB 3mgR/2+ABW=mVB2/2-0 ABW=mgR/2 ABU=ABW/q=mgr/-2q(3)ABU=ACU=-mgR/2q=CACACAU=-mgR/2q 文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2

40、HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2

41、 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R

42、2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10

43、R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K1

44、0R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K

45、10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3文档编码:CV5X7W9K10R2 HN10S9Z2W3H3 ZV2N5K10S3E3