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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 thepu:s(0geihw 3m:i5 8no ej2hu followi je80guw uniip2 (em:hh53o s:ng statements 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 aaq* ,-g7*5pvos 9o bvxxnbtggla-05rest. Which of the follo xv9b0atalsox75 a,*v* 5gpb --g ngqowing 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 placed onv2)2 yqs t8hyfkma4/ r a vertical wall. Which one of the following terms is most closely associated with the electrical phenomenon allowing the balloon to remain on th8 )/frvmst22y4akyhq e 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 2 l7ggg; )fkbqtgdci66 nw: ,w h,ho2jviewed end on carries a conventional electric current out of the paper as shown in the diagram. What is thggb :hw tfi6njgkql7w6, 2h; ,o 2d)cge 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 riw8hsyewa1k-g0sovr a ;4ee0 pw/go 3 )ght shows the electric field lines surrounding them. Which of the followohswa-3w1ra4 0 egp )k0y;v e8oges/wing 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 sg:5dp ; 9f yc4wdzjv6f:l2t+u x q)jcthown below, what is the ratio of the charges q1 and q2 6 5z:qv9:)dpglf cuwjy+xjd2f; 4ttc, 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 is placed at point P in thg9dyuf:+goi0m ;qgu ri.r4,re region near two charges. Which of the following arrows indicates the direction of the force on the 0 9g rr,dgugym:r;qiu 4+foi .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 qzggvp :j6oil8 da ib12tf6/*brought near 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 brot:gb zqo8 6fd/iiv*gp a1j62 lught 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 chaa.2n2tj;oak .f,cyk 7 corvw2 rged object 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 charged object. What happens to the leaves of the electroscope when a negative chargo.rwaj7.2kn ,octkv22; ay fce 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-ml- 6d;ee yki;7f k7d8sc mqlve charge, causing its foil leaves to separate. When an object is brought near the top plate of the electrosc7elfk led6;kydq7;8--ms m icope, 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 showys8iv 2kokjwq y9f:)7vqdg 84n. The spheres have:f j8k gqw 8v)dy2497yiokqvs 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 com9/mxq.n mq p7zb through their hair and the comb becomes negatively charged. Which of the followinqmq 7m /x.n9pzg 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 glase4nm/hv2r(jgms*hb bo*zgp.ew 1 5 m0 s rod is brought near a neutral hollow metal sphere suspended by an insulating string, the sphere will be attracted to the rod ome*h1g2rnbv(0b5j* / emwmgsz.p h 4 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 onqzi)pp 0 6ana( insulating threads attract one another as shown. It is know n6a)p(p0iqaz n 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 spheres on ins 205ffbiz4zyxulating bases areplaced 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 between the spheres when they54fy i20bzxzf are released?


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