当前位置:首页>文档>第1部分专题3第9讲 磁场_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)_学生版

第1部分专题3第9讲 磁场_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)_学生版

  • 2026-03-10 14:19:55 2026-03-10 14:19:55

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第1部分专题3第9讲 磁场_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)_学生版
第1部分专题3第9讲 磁场_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)_学生版
第1部分专题3第9讲 磁场_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)_学生版
第1部分专题3第9讲 磁场_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)_学生版
第1部分专题3第9讲 磁场_4.2025物理总复习_赠品通用版(老高考)复习资料_二轮复习_2023年高考物理二轮复习讲义+课件(全国版)_2023年高考物理二轮复习讲义(全国版)_学生版

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第 9 讲 磁场 [保分基础练] 1.(2022·广东卷·7)如图所示,一个立方体空间被对角平面MNPQ划分成两个区域,两区域分 布有磁感应强度大小相等、方向相反且与z轴平行的匀强磁场.一质子以某一速度从立方体 左侧垂直Oyz平面进入磁场,并穿过两个磁场区域.下列关于质子运动轨迹在不同坐标平面 的投影中,可能正确的是( ) 2.(2022·安徽合肥市质检)如图所示,正六边形线框abcdef由六根导体棒连接而成,固定于 匀强磁场中的线框平面与磁场方向垂直,线框顶点a、b与电源两端相连,其中ab棒的电阻 为5R,其余各棒的电阻均为R,电源内阻及导线电阻忽略不计.S闭合后,线框受到的安培 力大小为F.若仅将ab棒移走,则余下线框受到的安培力大小为( ) A. B. C. D. 3.(多选)(2022·全国乙卷·18)安装适当的软件后,利用智能手机中的磁传感器可以测量磁感应 强度B.如图,在手机上建立直角坐标系,手机显示屏所在平面为xOy面.某同学在某地对 地磁场进行了四次测量,每次测量时y轴指向不同方向而z轴正向保持竖直向上.根据表中 测量结果可推知( )测量序号 B/μT B/μT B/μT x y z 1 0 21 -45 2 0 -20 -46 3 21 0 -45 4 -21 0 -45 A.测量地点位于南半球 B.当地的地磁场大小约为50 μT C.第2次测量时y轴正向指向南方 D.第3次测量时y轴正向指向东方 4.(多选)(2022·辽宁葫芦岛市二模)如图所示,在竖直平面矩形ABCD区域内存在方向垂直 纸面向里、磁感应强度大小为B的匀强磁场.一带电粒子从AD的中点O射入磁场,速度方 向与磁场垂直且与AD的夹角α=45°,粒子经过磁场偏转后在C点垂直CD穿出.已知矩形 ABCD的宽AD为L,粒子电荷量为q、质量为m,重力不计.则下列说法正确的是( ) A.粒子带正电荷 B.粒子速度大小为 C.粒子在磁场中运动的轨道半径为L D.粒子在磁场中运动的时间为 5.(2021·北京卷·12)如图所示,在xOy坐标系的第一象限内存在匀强磁场.一带电粒子在 P 点以与x轴正方向成60°的方向垂直磁场射入,并恰好垂直于y轴射出磁场.已知带电粒子 质量为m、电荷量为q,OP=a.不计重力.根据上述信息可以得出( ) A.带电粒子在磁场中运动的轨迹方程 B.带电粒子在磁场中运动的速率 C.带电粒子在磁场中运动的时间 D.该匀强磁场的磁感应强度 6.(2022·福建三明市普通高中高三期末)如图,在xOy区域存在方向垂直于xOy平面向外的 匀强磁场.一个氕核H和一个氦核He同时从y轴上O点以相同的动能射出,速度方向沿 x 轴正方向.不计重力及两粒子间的相互作用,以下对氕核 H和氦核He的运动轨迹图判断正 确的是( )7.(2022·山东潍坊市一模)如图所示,正六边形区域内存在垂直纸面向里的匀强磁场.一带 正电粒子以速度v 从a点沿ad方向射入磁场,从c点离开磁场;若该粒子以速度v 从a点 1 2 沿ae方向射入磁场,则从d点离开磁场.不计粒子重力,的比值为( ) A. B. C. D. 8.(多选)(2022·湖北卷·8)在如图所示的平面内,分界线SP将宽度为L的矩形区域分成两部 分,一部分充满方向垂直于纸面向外的匀强磁场,另一部分充满方向垂直于纸面向里的匀强 磁场,磁感应强度大小均为B,SP与磁场左右边界垂直.离子源从S处射入速度大小不同 的正离子,离子入射方向与磁场方向垂直且与SP成30°角.已知离子比荷为k,不计重力. 若离子从P点射出,设出射方向与入射方向的夹角为θ,则离子的入射速度和对应θ角的可 能组合为( ) A.kBL,0° B.kBL,0° C.kBL,60° D.2kBL,60°[争分提能练] 9.(多选)(2022·山东德州市高三期末)如图所示,倾角为α的固定足够长斜面上方有垂直纸 面向外的匀强磁场,磁场的磁感应强度大小为B,在斜面上由静止开始释放一带负电的物块, 物块的质量为m,带电荷量大小为q,与斜面间的动摩擦因数为μ,μ
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  1. CONNECT:[ UseTime:0.000449s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000672s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.008636s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.016193s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000723s ]
  6. SELECT * FROM `set` [ RunTime:0.007019s ]
  7. SHOW FULL COLUMNS FROM `wendang` [ RunTime:0.000754s ]
  8. SELECT * FROM `wendang` WHERE `id` = 374021 LIMIT 1 [ RunTime:0.010151s ]
  9. UPDATE `wendang` SET `liulancishu` = 1 WHERE `id` = 374021 [ RunTime:0.019109s ]
  10. UPDATE `wendang` SET `lasttime` = 1773123856 WHERE `id` = 374021 [ RunTime:0.003816s ]
  11. SELECT * FROM `wendang` WHERE `id` < 374021 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000760s ]
  12. SELECT * FROM `wendang` WHERE `id` > 374021 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000841s ]
  13. SELECT * FROM `wendang` WHERE `id` <> 374021 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004903s ]
  14. SELECT * FROM `wendang` WHERE `id` <> 374021 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.007376s ]
  15. SELECT * FROM `wendang` WHERE `id` <> 374021 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000904s ]
0.153075s