题库网 (tiku.one)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:Motion of charged particle and Velocity selector and Mass spectrometer



 作者: admin   总分: 23分  得分: _____________

答题人: 匿名未登录  开始时间: 24年07月29日 16:20  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.18: A wire has a conventional current I directed to the ri1h vvj8 0o7obsght. At the instant shown in the figure, an electros vv7h b0j8oo1n has a velocity directed to the left. The magnetic force on the electron at this instant is



参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.24: For the bar magnet shown in the figure, which choice best :- i vylqz-*2(+ xkhs-omiiuj describes the direction of the qim(jz yh+-- :oik is vl*-xu2magnetic field at the point P located directly above the center of the magnet?



参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.34: A wire lies in the plane of the page with conventional current png-9cw5uz3m2v .h -jeiw+ jx I shown. At theej2 j+g xz.3i9-v5chup-n wwm instant shown, what is the direction of the magnetic force on the electron that is moving directly to the right toward the wire?





参考答案:    

标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.30: Electrons flow r0,encyd4j 6 tto the left in a wire as shown. For the proton moving toward the top of the page at the instant shown, what is the direction of the magnetic f4rtcdy 60e,njorce on the proton?



参考答案:    

标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.30: The conventional current I in a long straight wire flows in thf :isdxd6;xgxr(xw; .e upward direction as shown in the figure. (Electron flow is downward.) At the instant a proto.x6;dd (i:fg;wxs xxrn of charge +e is a distance R from the wire and heading directly toward it, the force on the proton is:

参考答案:    

标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.16: A charged particle with constant speed enters a uniform magnetic field whk. t kphh9mu8:yauw)i c;a+t6ose direction is perpendicular to the particle’s velocity. Th8+.t; yacuh:m w 9akk)uphti6e particle will:

参考答案:    

标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.10: A charged particle with constant velocity enters;oh f gwoh b fbwqw(0ll)k+4), a uniform magnetic field whose direction is parallel to the particle’s velww, hobfbgl w)4fkq (h0;)+olocity. The particle will

参考答案:    

标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.34: A positively charpk) c f0c3j2v h a)0rmwu6jlh)ged particle of mass M is at rest on a table. A non- zero electric field E is directed into the plane of the table. A non-zero magnetic field B is di0fvhu )2kwchc) 3pja 6 jm)rl0rected out of the plane of the table. What is true about the magnitude of the electric force on the particle $F_E$ compared to the magneti force on the particle $F_B$?

参考答案:    

标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.24: A proton moves with constant non-zero velocity in a region of space tha7obuk(bz 8*wjhzz i **t has a uniform magnetic field directed into th* *(zkb8ujb zi*o7wz he plane of the page. The proton moves directly up the plane of the page. What is the direction of the electric field in this region of space? Ignore gravity

参考答案:    

标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.14: A positive electric charge of negligible weight is rel.m+ h cp1+ xryk/u. 9.proemv- csjlp7eased from rest between the poles of a horseshoe magnet as shown. What would be the direction of the acceleration of the charge caused by the magneticp .97mryr-+h+cju1 m po .klv.e/xs cp field?



参考答案:    

标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.26: An electron moving in the plane of thw -p h.2tpm3kcztt5 7ne page at an angle of 300 to the horizontal enters a region with a constant magnetic field directed horizontally in the plane of the page as shown. At the instant that the electron enters the magnetic fielthc wt 7z3tp.2npm5k-d, which best describes the direction of the resulting magnetic force on the electron?



参考答案:    

标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.29: An electron moves with todw8(-:q(nqokdc oey;/* bispeed $1.00× 10^3\: m/s$ as it enters a region of space that has only a uniform magnetic field. The electron is accelerated because of this field with a constant magnitude of $8.00× 10^5\: m/s^2$ for the entire time of $1.00× 10^{−3}s $ that it is in the field. With what speed would the electron exit the field? Ignore gravity.

参考答案:    

标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.29 An electron with charge −e and mass m travels at a speed v in a plane p :tozp(yl)d3an*wc (eerpendicular to a magnetic field of magnitude B. The electron follows a circular path of radius R. In a time t, the electron travels halfway around the circle. What is the amount of work done by the magnetic force on the electron inw:)pt(dn(eco yz*la 3 this time?

参考答案:    

标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.28: An ion with chargeboc1 7k8vxtc . il,i6m q, mass m, and speed v enters a magnetic field B and is deflected into a path with a radius of curvature R. If a second ion has speed 2v, while m, q, and B are unchanged, what will bev61k clicx,imt .b8 o7 the radius of the second ion’s path?

参考答案:    

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.44: A proton moves in a circular orbit in a uniform magnetic fienkjgokl d;3 9 26-cgbxld B. A helium nucleus moves in a circular orbit in the same magnetic field. If each particle experiences the same magnitude 9 k 2o;lxjd63bc-gkng magnetic force during its motion, what is the ratio of the speed of the helium to the speed of the proton?

参考答案:    

标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.43: Two ions travel perpendicular to the samu- r ,fe3+ 4 vm0kv0uenh5q)ut ozv9fae uniform magnetic field. The ions carry the same charge and have the same path radius in the magnetic field. Which of the following quantities must be themvkau-t0)u+o n0ffre9 e45q, hv3vu z same for the two ions?

参考答案:    

标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.15: A positively charged particle moves to the right. It enters a region of ;exxwym7.3 ;ozo/e s aspace in which there is an electric field directed up the plane of the paper (see figure). In which direction does a magnetic field have to point in this region so thxzmw/yao;x. 7 3os; eeat the particle maintains a constant velocity?



参考答案:    

标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.40: A proton of mass M and kinetic.. hwu4cin:t,zaupc ylnb*3zx q s/; +cf3wk: energy $E_k$ passes undeflected through a region with electric
and magnetic fields perpendicular to each other. The electric field has magnitude E. The magnitude
of the magnetic field B is:

参考答案:    

标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.25: The speed of electrically charged beta partic u*b* :e+uvb4.tnstqc3 k9z4 sfxjwc- les is commonly determined by *eu4*4:c9kbb+swtvjnzxc3-fqu ts .

参考答案:    

标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.27: A proton moves straight up the pq,17oyvg :ujb fr)i 1zg: r-aylane of this page into a region that has a magnetic field directed to the right. If the particle is undefle go-:viyru1r, afy)g71 :j qzbcted as it passes through this region, in what direction must there be a component of electric field? Ignore gravity.

参考答案:    

标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.36: An electron moves in the plane of the page through twbfw0sd)9y gs d30yk /ao regions of space along the dotted-line trajectory s3wdy 0s df) 0gsb9a/ykhown in the figure. There is a uniform electric field in Region I directed into the plane of the page (as shown). There is no electric field in Region II. What is a necessary direction of the magnetic field in regions I and II?
Ignore gravitational forces.




参考答案:    

标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.36: A positive charge moves with cnh ;z*4g r5kq1gu4ck9/hgf h6/ia ixwonstant velocity through a region of space containing both anih9h4w kr 6; kx1cg z 5ah/fi4qngug/*
electric field and a magnetic field. The electric field is directed out of the plane of the page.
Ignoring any gravitational field, which one of the following choices represents possible directions
of both the particle’s velocity and the total magnetic field in the region of space?

参考答案:    

标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.29: An electron moves at constant non-zero veloc yj/- xsqem)s4ity directly between two long sts- 4je)x/qms yraight wires. The conventional current in each wire has the same magnitude, but the currents are in opposite directions as shown in the figure. Ignoring gravity, which choice best reflects the direction of the magnetic field and the direction of the electric field that exist at the location of the electron? Any electric field in the region originates from an unseen external source.



参考答案:    

  • :
  • 总分:23分 及格:13.8分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题,此次习题练习共有 23 道题
    本系统支持习题练习,作业与考试三大模式,作业考试自动评分,成绩排序一键导出,可设定动态变量同一试卷千人千题
    如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

    浏览记录|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

    GMT+8, 2025-7-1 07:07 , Processed in 0.200294 second(s), 67 queries , Redis On.