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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: 游客未登录  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 fop v)re0 al/3fm4kylp 0llowing statements could be true? )4pla0l/ ey3rvm0fkp
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 negativi+h 8zeb t+5d4e ijkj.e charge and held at rest. Which of the following stae 84kbzdj .h+j5teii+ tements 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 reskskw0r7/9e esw5a c.o)otgm)t when placed on a vertical wall. Which one of the following terms is most closely associated with the electrical phenomenon allowing the balloon to remain on the wkwts9ow .5)0cem)erg 7k/a soall?


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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 o;qza-wf+6 ltj:cg gc y u/u;6carries a conventional electric current out of the paper as shown in the difwlac jy:6;;q+z -ug 6gct/uo agram. What is the direction 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 magnitude. The diagram to the*y wzv2x6y -ld right shows the electricd-zwyxly v *26 field lines surrounding 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 below, what is the ratio of thb 7ulg j 78y7boj*d;aue charges q1 and q2 j7u8;da yg7buo b*lj7 , 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 charge p9jb,m;zvgf,h2 ml1 g is placed at point P in the region near two charges. Which of the following arrows indicates the direction of the fo ljz2pm,h;g 9vbfm g1,rce 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 68h5uc:zf3mya l. fpt 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 elec aht.zmyp36u c 5l8ff:troscope. 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 object is broughtb scnc5t00cb- 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, fol0cn s-cb0 tcb5lowed 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 aca tm-udnbgv,*e u 46+ positive charge, causing its foil leaves to separate. When an object is brc4mb-+*t va6,g udeu nought 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 two insulated conducting spheres as showbumi1y4fy i +(loxfe neu65zfd4apy*;1.k n (n. The spheres have no net charge. Region II has the same pol6e(l 4 .nab yyuu; fzifk 1mdpf1*4y+(5exi noarity 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 : 9b6 txdkrkukh1b99gthrough their hair and the comb becomes negatively charged. Which of the following is the besb96t:9h kkg bux9drk1t 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 gla5;4 r2ste)mbjb+/bc : kkqb zu4vzx2amqh/o:ss rod is brought near a neutral 2r s;ke4:2z+xt5b mbq/vjcb:b 4) umk /qzohahollow metal sphere suspended by an insulating string, 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 spheres hung on insulating threads attract one an+yi 2jr.glbx:li8mdt-j :g f- su/uw+hs3c 2xother as shown. It is known that a positively charged rod will attract rg .s2bcis2 mfgtl:/8+-:l uud+ij-hj yxwx3ball 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 charx;hp7tng g1)nged non-conducting spheres on insulating bases areplaced on an air table. Sphere A has a charge +3Q coulombs and sphere B has a charge +Q coulombs. Which of th) ggx t7pn1hn;e following correctly illustrates the magnitude and direction of the electrostatic force between the spheres when they are released?


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