大学物理C课后答案1知识讲解.pdf

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1、资料收集于网络，如有侵权请联系网站删除word 可编辑习题 5题 5-2 图题 5-2 图5-2两小球的质量都是m，都用长为l 的细绳挂在同一点，它们带有相同电量，静止时两线夹角为2，如题 5-2 图所示.设小球的半径和线的质量都可以忽略不计，求每个小球所带的电量.解:如题 5-2 图示220)sin2(41sincoslqFTmgTe解得tan4sin20mglq5-4长 l15.0 cm 的直导线AB 上均匀地分布着线密度95.0 10C m的正电荷.试求：(1)在导线的延长线上与导线B 端相距15.0acm处 P 点的场强；(2)在导线的垂直平分线上与导线中点相距25.0dcm处 Q 点

2、的场强.解：如题 5-4 图所示题 5-4 图(1)在带电直线上取线元xd，其上电量qd在P点产生场强为20)(d41dxaxEP2220)(d4dxaxEEllPP资料收集于网络，如有侵权请联系网站删除word 可编辑212140lala)4(220lal用15lcm，9100.51mC,5.12acm代入得21074.6PE1CN方向水平向右(2)2220dd41dxxEQ方向如题5-4 图所示由于对称性lQxE0d，即QE只有y分量，22222220dddd41dxxxEQy224ddlQyQyEE2223222)d(dllxx2220d42ll以9100.51cmC,15lcm,5d2

3、cm代入得21096.14QyQEE1CN，方向沿y轴正向5-7半径为1R和2R(21RR)的两无限长同轴圆柱面，单位长度上分别带有电量 和 ，试求：(1)1rR；(2)12RrR处各点的场强.解:高斯定理0dqSEs取同轴圆柱形高斯面，侧面积rlS2则rlESES2d对(1)1Rr0,0 Eq(2)21RrRlqrE02沿径向向外文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y

4、6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E

5、7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y

6、6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E

7、7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y

8、6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E

9、7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5资料收集于网络，如有侵权请

10、联系网站删除word 可编辑(3)2Rr0q0E5-9如题 5-9 图所示，在 A，B 两点处放有电量分别为q，q 的点电荷，AB 间距离为2R，现将另一正试验点电荷0q从 O 点经过半圆弧移到C 点，求移动过程中电场力做的功.解:如题 5-9 图示041OU0)(RqRq041OU)3(RqRqRq06RqqUUqAoCO006)(题 5-9 图题 5-10 图5-10如题 5-10 图所示的绝缘细线上均匀分布着线密度为的正电荷，两段直导线的长度和半圆环的半径都等于R.试求环中心O 点处的场强和电势.解:(1)由于电荷均匀分布与对称性，AB和CD段电荷在O点产生的场强互相抵消，取ddRl则d

11、dRq产生O点Ed如图，由于对称性，O点场强沿y轴负方向题 5-10 图cos4dd2220RREEyR04)2sin(2sinR02(2)AB电荷在O点产生电势，以0U文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y

12、3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V

13、3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y

14、3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V

15、3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y

16、3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V

17、3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5资料收集于网络，如有侵权请联系网站删除word 可编辑AB200012ln44d4dRRxxxxU同理CD产生2ln402U半圆环产生00344RRU0032142ln2UUUUO86)35

18、251(5021UUUABV习题 66-5在真空中，有两根互相平行的无限长直导线L1和 L2，相距 0.10 m，通有方向相反的电流，120AI，210AI，如题 6-5 图所示.A，B 两点与导线在同一平面内.这两点与导线L2的距离均为5.0 cm.试求 A，B 两点处的磁感应强度，以及磁感应强度为零的点的位置.题 6-5 图解：如题6-5 图所示,AB方向垂直纸面向里42010102.105.02)05.01.0(2IIBAT(2)设0B在2L外侧距离2L为r处则02)1.0(220rIrI解得1.0rm6-7设题 6-7 图中两导线中的电流均为8 A，对图示的三条闭合曲线a，b，c，分别

19、写出安培环路定理等式右边电流的代数和.并讨论：(1)在各条闭合曲线上，各点的磁感应强度B的大小是否相等？(2)在闭合曲线c 上各点的B是否为零？为什么？文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4

20、X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码

21、:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4

22、X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码

23、:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4

24、X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码

25、:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5资料收集于网络，如有侵权请联系网站删除word 可编辑题 6-7 图解：alB08dbalB08dclB0d(1)在各条闭合曲线上，各点B的大小不相等(2)在闭合曲线C上各点B不为零只是B的环路积分为零而非每

26、点0B题 6-10 图6-10如题 6-10 图所示，在长直导线AB 内通以电流120AI，在矩形线圈CDEF 中通有电流210AI，AB 与线圈共面，且CD，EF 都与 AB 平行.已知 a9.0 cm，b20.0 cm，d1.0 cm，求：(1)导线 AB 的磁场对矩形线圈每边所作用的力；(2)矩形线圈所受合力和合力矩.解：(1)CDF方向垂直CD向左，大小4102100.82 dIbIFCDN同理FEF方向垂直FE向右，大小5102100.8)(2adIbIFFENCFF方向垂直CF向上，大小为addCFdadIIrrIIF5210210102.9ln2d2NEDF方向垂直ED向下，大小

27、为5102.9CFEDFFN(2)合力EDCFFECDFFFFF方向向左，大小为文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4

28、Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5

29、文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4

30、Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5

31、文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4

32、Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5

33、文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5资料收集于网络，如有侵权请联系网站删除word 可编辑4102.7FN合力矩BPMm线圈与导线共面BPm/0M题 6-12 图6-12一长直导线通有电流120AI，旁边放一导线ab，其中通有电流210AI，且两者共面，如题6-12 图所示.求导线 ab 所受作用力对O 点的力矩.

34、解：在ab上取rd，它受力abFd向上，大小为rIrIF2dd102Fd对O点力矩FrMdMd方向垂直纸面向外，大小为rIIFrMd2dd210babarIIMM6210106.3d2dmN题 6-13 图6-13电子在47010TB的匀强磁场中作圆周运动，圆周半径r3.0 cm.已知B垂直于纸面向外，某时刻电子在A 点，速度v 向上，如题6-13 图所示.(1)试画出这电子运动的轨道；(2)求这电子速度v 的大小；(3)求这电子的动能kE.解：(1)轨迹如图文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1

35、 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1

36、A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1

37、 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1

38、A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1

39、 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1

40、A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1

41、 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5资料收集于网络，如有侵权请联系网站删除word 可编辑题 6-13 图(2)rvmevB27107.3meBrv1sm(3)162K102.621mvEJ05.1HHBorT习题 77-1一半径 r10 cm 的圆形回路放在B0.8 T 的均匀磁场中，回路平面与B 垂直.当回路半径以恒定速率=80drdtcm/s 收缩时，求回路中感应电动势的大小.解:回路磁通2rBBSm感应电动势大小40.0dd2)(dddd2trrBrBttmV题 7-3 7-3如题 7-3 图所示，在两平行载流的无限长

42、直导线的平面内有一矩形线圈.两导线中的电流方向相反、大小相等，且电流以dIdt的变化率增大，求：(1)任一时刻线圈内所通过的磁通量；(2)线圈中的感应电动势.解:以向外磁通为正则(1)lnln2d2d2000dadbabIlrlrIrlrIabbaddm(2)tIbabdadltddlnln2dd0文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 Z

43、O1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2

44、P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 Z

45、O1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2

46、P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 Z

47、O1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2

48、P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5资料收集于网络，如有侵权请联系网站删除word 可编辑习题

49、88-1质量为10 103kg 的小球与轻弹簧组成的系统，按20.1cos(8)3xt(SI)的规律做谐振动，求：(1)振动的周期、振幅、初位相及速度与加速度的最大值；(2)最大的回复力、振动能量、平均动能和平均势能，在哪些位置上动能与势能相等？(3)t25 s与 t11 s两个时刻的位相差.解：(1)设谐振动的标准方程为)cos(0tAx，则知：3/2,s412,8,m1.00TA又8.0Avm1sm51.21sm2.632Aam2sm(2)N63.0mmaFJ1016.32122mmvEJ1058.1212EEEkp当pkEE时，有pEE2，即)21(212122kAkxm20222Ax(

50、3)32)15(8)(12tt8-2一个沿 x 轴做简谐振动的弹簧振子，振幅为 A，周期为 T，其振动方程用余弦函数表出.如果 t0 时质点的状态分别是：(1)x0 A；(2)过平衡位置向正向运动；(3)过2Ax处向负向运动；(4)过2Ax处向正向运动.试求出相应的初位相，并写出振动方程.解：因为0000sincosAvAx将以上初值条件代入上式，使两式同时成立之值即为该条件下的初位相故有文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4X8D1 ZO1E7V3E6W5文档编码:CH1A2P3Y6Y3 HH4Z9T4