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习题练习:Electric Field and Electric Induction



 作者: admin   总分: 15分  得分: _____________

答题人: 匿名未登录  开始时间: 24年08月22日 10:29  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.07: A positively charged conductor attracts a second object. Which of the fo11o ql/vi*xo5 j,c hun5uaf 6nllowing statements ciacon f,h5 q165uuxno */1ljvould be true?
I. The second object is a conductor with negative net charge.
II. The second object is a conductor with zero net charge.
III. The second object is an insulator with zero net charge.

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.07: An amber rod is given a net negative charge and held at rest. Which o*: cuvburp2.t7ot aw:f the fouac tu7 w.:*: obrtpv2llowing statements is true?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.08: A negatively charged balloon remains at rest when placv*1ii/ijo, ocy7x0 jp ed on a vertical wall. Which one of the following terms is most closely associated with the electrical phenomenon allowing the balloon to rema7ii/ p*iv, yo 1xjojc0in on the wall?


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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.37: A long straight wire viewy/dqq6 xs*hdf++qbp7ed end on carries a conventional electric current out of the paper as shown in the diagram. What is the sqpq/+qh7yd+b *6fx ddirection of the associated electric field at point P?


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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.05: Point charges 1 and m 850zldd f9hcrx14o u2 have equal magnitude. The diagram to the right shows the electric field lines surrounding them. Which of the followi 91lro 8zd5f0c 4uhxmdng statements is true?


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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.26: For the diagram e4eaczak- :ak 8cd++ ushown below, what is the ratio of the charges q1 and 4:- k8eeca au cd+akz+ q2 , where the diagram shown has a representation of the field lines in the space near the charges.


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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.17: A small positive test chal j.gn inpt+f8r .9gv9rge is placed at point P in the region near two charges. Which of tp+8tn.f9g ilvgn9. rj he following arrows indicates the direction of the force on the positive test charge?


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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.05: A positively charged rod is brought 0ksla4j ar+c0*ez c1awe3wuy- 9-4d3pta x hfnear a metal electroscope that is initially uncharged. As shown in the figure, the rod does not touch the electroscope. There is no charge transfer between the electroscope and rod, but the leaves of the electroscope move apart from each other when the rod is brought near the top of the electroscope. Which one of the following choices is theer*pw 4wekc0h3u1y4-+xzats9 0l ajca3ad- f best explanation for this phenomenon?


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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.15: A positively charged object is brought near buto )a 01;vrl:gqavsp /wav- z uur7n;3l not in contact with the top of an uncharged gold leaf electroscope. The experimenter then briefly touches the electroscope with a finger. The finger is removed, followed by the removal of the positively charged object. What happens to the leaves of the electroscope when:-a3wq a;u r0nv7 agvvs1 zo;lr /lp)u a negative charge is now brought near but not in contact with the top of the electroscope?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.09: An electroscope is given a positive charge, causing its fo5qtp2sxf o+;8 d oy*pjil leaves to separate. When an object is brought near the top platftx5 od sjp*+;o2yp8 qe of the electroscope, the foils separate even further. We could conclude


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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.06: A charged rod c kw0ls(-;/b ae mxy)iis placed between two insulated conducting spheres as shown. i0;msc/lkwy a( e-xb) The spheres have no net charge. Region II has the same polarity as Region


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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.23: A person rubs a neutral comb through their hair and the comb becomeoo+ 2)qug:*d/* owd xo x)onuks negatively charged. Which of the follod)wkq* */+xod uox) gno:2oouwing is the best explanation for this phenomenon?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.09: When a positive electrically charged glass rod is bro(ux/ b-kgqi1jught near a neutral hollow metal sphere suspended by an insulating string, the sphere will be attractkgxq 1ui/ -j(bed to the rod because:

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.24: Two small hollow metaom /w3g;j82el w hbhq+qem- :cl spheres hung on insulating threads attract one another as ;jq2hhwe/e3 -:b o8cgq+ lmm wshown. It is known that a positively charged rod will attract ball A.
I. Ball A has a positive charge
II. Ball B has a negative charge
III. Ball A and Ball B have opposite charges
Which of the above can be correctly concluded about the charge on the balls?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.36: Two uniformly charged non-conducting sphe5 k8wj/0s5-;c;+r:k z g s elygzlv3n, sjryvfres on insulating bases areplaced on an air table. Sphere A has a charge +3Q coulk,s gzjgz5n slvfkylw/;- y :vr3;c 8 r+s5e0jombs and sphere B has a charge +Q coulombs. Which of the following correctly illustrates the magnitude and direction of the electrostatic force between the spheres when they are released?


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