(完整word版)高二物理第一学期期末考试试卷及答案1(word文档良心出品).pdf

《(完整word版)高二物理第一学期期末考试试卷及答案1(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)高二物理第一学期期末考试试卷及答案1(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、高二物理第一学期期末考试物 理 模 拟 试 题（选修）本试卷分为第卷（选择题）和第卷（非选择题）两部分，共120 分，考试时间100分钟第卷（选择题31 分）一、单项选择题（每题3 分，共 15 分）1在重复奥斯特的电流磁效应实验时，为使实验方便且效果明显，通电直导线应（）A.平行于南北方向，位于小磁针上方B.平行于东西方向，位于小磁针上方C.平行于东南方向，位于小磁针下方D.平行于西南方向，位于小磁针下方2、在如图所示的电路中,当滑线变阻器的滑动触点向b端移动时（）A.伏特表 V的读数增大,安培表 A的读数减小.B.伏特表 V和安培表 A的读数都增大.C.伏特表 V和安培表 A的读数都减小.

2、D.伏特表 V的读数减小,安培表 A的读数增大.3如图所示，带电粒子在匀强磁场中运动时所受洛伦兹力方向垂直纸面向外的是（）4穿过闭合回路的磁通量随时间t变化的图象分别如图所示，下列关于回路中产生的感应电动势的论述，正确的是（）A图中，回路产生的感应电动势恒定不变B图中，回路产生的感应电动势一直在变大C图中，回路在0t1时间内产生的感应电动势小于t1t2时间内产生的感应电动势D图中，回路产生的感应电动势先变小再变大5如图所示，从匀强磁场中把不发生形变的矩形线圈匀速拉出磁场区，如果两次拉出的速度之比为14，则两次线圈所受外力大小之比F1F2、线圈发热之比Q1Q2、通过线圈截面的电量q1 q2之比分

3、别为（）AF1F2 21，Q1Q221，q1q221 BF1F2 14，Q1Q214，q1q211 CF1F2 12，Q1Q214，q1q212 DF1F2 11，Q1Q211，q1q211 二、多项选择题（每题 4分，共 16分）v D B C+v B B v B A+v B 1R2R3RbaAVrF5 题图6以下关于磁场和磁感应强度B 的说法，正确的是（）A根据定义式BIlF，磁场中某点的磁感应强度B与 F 成正比，与IL 成反比B磁感应强度B是矢量，方向与电流所受安培力的方向相同C磁感应强度B是矢量，方向与通过该点的磁感线的切线方向相同D在确定的磁场中，同一点的B是确定的，不同点的B可能

4、不同7.把一小段通电直导线放入磁场中，下列判断正确的是（）A若导线受到的安培力为零，说明它所在处磁感应强度为零B若通电直导线垂直放入磁场中，导线受到的安培力最大C若电流方向与磁感应强度方向不垂直时，安培力也一定既垂直于电流方向，又垂直于磁感应强度方向D根据 B=F/IL 可知，磁感应强度B 与安培力F 成正比，与电流强度I 和导线长度L 的乘积 IL 成反比8如右图甲、乙电路中，电阻R 和自感线圈L 的电阻值都很小且相等，灯泡的电阻稍大.接通开关S，使电路达到稳定，灯泡发光。下列判断正确的是:（）A在电路甲中断开S，灯泡将渐渐变暗B在电路甲中断开S，灯泡将先变得更亮，然后渐渐变暗C在电路乙中断

5、开S，灯泡将渐渐变暗D在电路乙中断开S，灯泡将先变得更亮，然后渐渐变暗9如图所示，两块水平放置的金属板相距为d，用导线将两极板与一个 n 匝线圈连接，若线圈置于竖直向下的变化磁场B 中，能使在两板间的一质量为m，带电量为q 的微粒恰能静止，那么关于线圈中磁场的变化情况和磁通量的变化率/t，下列说法正确的是（）A若 q 带正电，变化的磁场B 减弱，/t=dmg/nqB若 q 带正电，变化的磁场B 增大，/t=dmg/nqC若 q 带负电，变化的磁场B 增大，/t=dmg/nqD若 q 带负电，变化的磁场B 减弱，/t=dmg/nq第卷（非选择题89 分）三、填空与实验题（每空3 分，共 24 分

6、）10 用螺旋测微器测得导线的直径如图所示。其读数是 mm；11如图所示，一带电小球，恰好能在电容器内的竖直平面内做匀速圆周运动，磁场的方向垂直纸面向里，磁感应强度大小为B，电容器两板间距离为d，电源的电动势大小为 U，则小球做匀速圆周运动的周期为；小球绕行的方向为（填“逆时针”或“顺时针”）12在用伏安法测量一个定值电阻阻值的实验中提供了如下器材：待测电阻Rx(约 100 )；直流毫安表(量程 0 20 mA，内阻约 50 )；m、q B d 9 题图11 题图文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M

7、5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1

8、Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2

9、T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G

10、6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9

11、S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2

12、O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z

13、6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10直流电压表(量程 03 V，内阻约5 k)；直流电源(输出电压3 V，内阻可不计)；滑动变阻器(阻值范围015，允许最大电流1 A)；电键一个，导线若干条.实验要求最大限度的减小误差，则毫安表的连接应选择_(填“内接”或“外接”)的连接方式；滑动变阻器的连接应选择_(填“限流”或“分压”)的连接方式。13用如图甲所示的电路测量一节蓄电池的电动势和内电阻。蓄电池的电动势约为2V，内电阻很小。除蓄

14、电池、开关、导线外，可供使用的实验器材还有：A.电压表(量程 3V)B.定值电阻R0(阻值 4，额定功率4W)C.电流表(量程 3A)D.电流表(量程 0.6A)E.滑动变阻器R(阻值范围 020，额定电流 1A)电流表应选_；(填器材前的字母代号)。根据实验数据作出UI 图像(如图乙所示)，则蓄电池的电动势E _V，内阻 r=_。四、计算题：本题共4 小题，共65 分。解答时请写出必要的文字说明、方程式和重要的演算步骤，只写出最后答案的不能得分，有数值计算的题，答案中必须明确写出数值和单位.14（15 分）由小型直流电动机、小灯泡和定值电阻组成的电路如图所示，已知电源电动势 E=20V，内阻

15、 r=1，定值电阻R=4，小灯泡上标有“3V，4.5W”字样，电动机线圈电阻r=1，开关闭合时，小灯泡和电动机均恰好正常工作。求:电路中电流强度；电动机的总功率；电动机的输出功率.15.（16 分）如图所示，边长为l 的正方形ABCD 中有竖直向上的匀强电场一个不计重力的带电粒子，质量为m，电量为q，以初速度v0从 A 点沿 AD 方向射入，正好从CD 边中点射出试求：（1）求该电场的场强E 的大小（2）若撤去电场，改换成匀强磁场，带电粒子仍从CD 边中点射出，所加磁场的方向、磁感应强度B 的大小如何？L E r S RM A D B C v0 文档编码:CB2O2T3O8P3 HM1Z6G6

16、M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S

17、1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O

18、2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6

19、G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O

20、9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB

21、2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1

22、Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q1016（16 分）如图甲，用一根长L=0.8m 的绝缘不可伸长的轻质细绳，将一带电小球悬挂在O 点，整个装置处在垂直纸面向里的匀强磁场中现将小球从悬点O 的右侧水平位置由静止释放（绳刚好拉直），小球便在垂直磁场的竖直平面内左右摆动用拉力传感器（图中未画出）测出绳中的拉力F 随时间 t 变化规律如图乙（取重力加速度

23、g=10m/s2）.求：小球带何种电荷；小球运动到最低点时速度大小；小球的质量17(18 分)如图所示光滑足够长的平行金属导轨MN和 PQ 固定在同一水平面上，两导轨间距 L=0.2m，电阻0.4R=W，导轨上静止放置一质量0.1kgm=、电阻0.1r=W的金属杆，导轨电阻忽略不计，整个装置处在磁感应强度0.5TB的匀强磁场中，磁场的方向竖直向下，现用一外力F沿水平方向拉杆，从静止开始做匀加速直线运动，5s 末理想电压表的读数为0.2V，金属杆始终与导轨垂直并保持良好接触.求：金属杆5s 末速度大小；5s 末外力F的功率；从静止开始通过金属杆的电量为0.05C需要多长时间F B Q N M P

24、 V R 0 t/s T 2T 3T F/10-2N 0.5 5.5 图乙图甲o 文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O

25、8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5

26、T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q

27、10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T

28、3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6

29、M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S

30、1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10参考答案一、选择题1A 2 A 3C 4D 5 B 6CD 7BC 8AD 9AC 二、填空和实验题10 0.700 112 UBgd顺时针12外接，分压13 D 2.10 4.20

31、 三、计算题1415 分。解：电路中电流LLPIU=1.5A(3 分)电动机两端的电压()MLUEUI Rr=-+=9.5V(3 分)电动机的总功率1 4.2 5 WMPUI=总(3 分)电动机线圈热功率2/2.25WPI r=热(3 分)电动机的输出功率12WPPP=-=出总热(3 分)15 16 分。解：（1）带电粒子所受电场力方向与场强方向相反，因而粒子应带负电，根据带电粒子离开电场时的运动方向，可得：0lv t(2 分)21122Eqltm(2 分)解得：20mvEql(2 分)（2）换成磁场后，要使带电粒子向CD 中点偏转，根据左手定则磁场方向必须垂直纸面向里此时带电粒子做匀速圆周运

32、动，如图所示设其运动半径为R，根据几何关系，可得222)2(llRR(4 分)解得：54Rl(2 分)又根据RvmBqv200(2 分)磁感强度B=ql5mv4qBmv00(2 分)16.16 分。解：正电荷(3 分)由动能定理212mgLmv=(3 分)解得24vgL=m/s(2 分)根据牛顿定律，小球向左通过最低点时21vFm gq v BmL-=(3 分)A D B C v0 O v0 文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1

33、Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B

34、8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:

35、CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 H

36、M1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY

37、3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编

38、码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3

39、 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10小球向右通过最低点时22vFm gq v BmL-+=(3 分)由以上各式解得m=1g(2 分)17.18 分。金属杆在 5S 末切割磁感线产生的感应电动势EBLv=(2 分)感应电流EIRr=+(2 分)电压表示数UIR=(1 分)由以上各式得v=2.5m/s (1 分)金属棒加速度20.5/vam st=(1分)由牛顿定律FFma-=安 (2分)5s 末安培力FB I L=安(1 分)5s 末时外力F的功率PF v (1 分)由以上各式得0.25P=W(1 分

40、)(3)设 0.05C 的电量通过金属杆所需的时间为t D，则金属杆在tD内位移212xa tD=D(1 分)闭合回路磁通量的变化BL xjD=D(1 分)回路中平均感应电动势EtjD=D (1 分)回路中平均感应电流EIRr=+(1 分)tD内通过金属杆的电量qI t=D(1 分)由以上各式得1tD=s (1 分)文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 H

41、M1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY

42、3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编

43、码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3

44、 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8

45、ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文

46、档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10文档编码:CB2O2T3O8P3 HM1Z6G6M5T8 ZY3B8O9S1Q10