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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 d:pq p6n8ci/n charged conductor attracts a second object. Which of the following statementqp 8n/6ipcd :ns could 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 r63 lxjkk m:nn,est. Which of thn3: xnk,m6jkl e following 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 wfvm:0ie:6yt o hen placed on a vertical wall. Which one of the following terms is most closely associated :e: 0fyi6 tmovwith the electrical phenomenon allowing the balloon to remain 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 viewed end on carries a conventional eletztu,w-xi 9 7fzkuc)6ctric current out of the paper as shown in the diagram. What is the direction of the associated electric field at poinzuu6-)9twt fzx 7,cikt 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 2 have equal magnitud y gljcrbh+if7 * g1,36lxoq9we. The diagram to the right shows the electric field lines 7c39lh6ilo j1q y,gf+w x* rgbsurrounding them. Which of the following 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 shown belmj4 reo(dfa(;xt be j.f;8 6 dioab7x8ow, what is the ratio of the charges q1 and q2 , where the diagram shown has a representation of the field lines in thx feido 7e;;b8aod j4.b(m6fj(tx r 8ae 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 positiv;c +m8c zf eyqdfjnq3d0 (41pve test charge is placed at point P in the region near two charges. Which of the d1pdezn 3(mycq08f;jvf 4+q cfollowing 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 near a metal q74wf, fcmvy( electroscope that is initially uncharged. As shown in the figure, the rod does not touch the electroscope. There is no char 7(cvf4,qmf ywge 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 the 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 o.lepjx f i6 4o:tmznx bnl :1/*8p1iy97c ovljbject is brought near but 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 chaim 9 1t:pf/n6 xz*4lvep:8y1jo nj. oibxl 7clrged object. What happens to the leaves of the electroscope when 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 foil leaves g i2qkn1z;lk4b lmk4.pw+ pqp:i- 7wm to separate. When an object is brought near tmw;l wz4-p pq2n1: bi4gqlmpkik.7k+ he top plate 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 is placed between t u2o1gljy ilm99oqt5t. 0v1q6 l er,jiwo insulated conducting spheres as shown. The spheres have no net charge. Region II has .q ij 6ll29 iyr9o5 0 guej1,vtm1olqtthe 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)b7l5nml if (8,bd hhv e/u/ki through their hair and the comb becomes negatively charged. Which of the following is the best explanat mb(8/l 5buiih/v7 ,fdhknle) ion 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 positi8h53xheq q -qaszik1/cy.7a qve electrically charged glass rod is brought near a neutral hollow metal sphere suspended by an insulating strih1a 3esh 7qxyaz. kqcq 5i-8/qng, the sphere will be attracted 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 metal sphera+: mn+o + l/zhlhgv8ges hung on insulating threads attract one another as shown. It is known that a posi/g+:hm 8l h+n azl+gvotively 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 spheres on insulating bases areplachg8x* mzpzw/ ue 2z230cjloz.ed on an air table. Sphere A has a charge +3Q coulombs and sphere B has a charge +Q coulombs. Which of the following correctly illustrates the magnitude and direction of the electrostatic force betwee pz32zlj*wo ez2c.h m ug/x80zn the spheres when they are released?


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