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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 attrac:*n usiwfzuo *i2 okjpv -ov5r,,9l8nts a second object. Which of the following statements cois5,:o*jvouln o nuv-frzk8iw,9 2 *p uld 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 rbgh t s:q3cd)tj:3rd3z 7 0qmof the following statmrs:jc7hz 33b3dg :drqtt )0q ements 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 balloonbn 5.dfmo-2rqr3 +j gzm k*p2x remains at rest when placed on a vertical wall. Which one of the following terms is most closely associated with the electrical phenomenon allowing therk gx5jm + .fpdb 3-nmro2zq2* 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 electric cur. 51totsrh rs-rent out of the paper as shown in the diagram. What is the direco r-rts 5.1hsttion 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 2 have equal magni7fbb.se:7 3 bn fvg, lc;j1yfztude. The diagram to the right shows the electric field lines surrounding them. Which of ,;e . lbf zgy bvfc1f7s3:7jbnthe 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 below, what is the ratio of the charges q1 i sg. ef: yugkxljl75(r 1yt:a.e70cb mp n4f- and q2 , where the diagram shown has a representation of thegj0.-:fku7:si 71(r llyyc b f4gp 5etem ax.n 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 charge is pla,oatbv 2ki.g8 ced at point P in the region near two charges. Which of the following arrows iag8,to. kvb2indicates 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 et/ udk7za9 si*jr 0 -+ql3cioflectroscope 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 the be takof0dszl*3+j9icq u 7/ r-ist 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 but not in contact with ta0:h dd5klm+ ; uz.o:xylui4 khe top of an uncharged gold leaf electroscope. The experimenter then briefly:0u l lmhki4.a:;uzoddxk5+ y 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 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 positi v,:ao*gl 1d3e+enka mve charge, causing its foil leaves to separate. When an avdol*me3nk ,a+ e:g1 object is brought near the 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 tdl v91hzr: (blwo insulated conducting spheres as shown. The spheres have no net charge. Region l (rdvh91z:bl 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 p2; swzltw/gv 9zr:;k2;b unhbecomes negatively charged. Which of the following isbp:h rk;nw2u/l;ztsg9 zv;2 w 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 rc4e,e 6.a atgjod is brought near a neutral hollow metal sphere suspended by an insulating string, the sphere will be attracted to the rod because:j c6ee ,4a.tag

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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 spheres hung on insuw g4qs10.wl/mr inski 7lk0p m4.qs8qlating threads attract one another as shown. It is known that a positmg s04 k0nr mswi78wiq/l. q1pk .4qlsively 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 areplebv1)sjq/)f7ypm ; mw aced on an air table. Sphere A has a charge +3eb; )fq1v/)yp7 mmjws Q coulombs 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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