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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 chargedc/5 xn-cum8zn conductor attracts a second object. Which of the followiu/c m znx-85ncng 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 sjbe 8wuenh-7 hj8;*ycharge and held at rest. Which of the following jj 8y-en7wbe h s*;8hustatements 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 omfmqb7 bw4 9-hn a vertical wall. Which one of the following terms is most closely associated wibm bfm9h-7qw 4th 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 el2j5lb a1i ,v0ebt9uwr ectric current out of the paper as shown in the diagram. b19jabrliuw2 ,ev5 0t 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 3lz-bqsi 6sq5 kd y3x;to the right shows the electric field lines surr3blxds y6-q;i k5zsq 3ounding 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 rac:03t7/w fv:qrk r)dca ueldsl +6y2itio of the charges q1 and q2 , where the diagram shown has e )ku+df:cv/sad26twy0ic r:ll 7 q3r 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 placedvfcqim4 vriv)jnr09g0(5 c zg(: 5h oh at point P in the region near two charges. Which of the following zgi (c )r5jc0vnqf9( hvr:i4 5mhgo v0arrows 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 r,sli3 ;s1k 2vgmm(i nelectroscope 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. Whi1r2sv, sm(nil mk; i3gch 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 bros 0q zi3wod, y,ded8;kught 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 charge is now brought near but not i y;w 8d,0okzdi 3qe,dsn 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 foil6 co* jm nkn,yh0/syy; leaves to separate. When an object is brought near the top plate of the electroscope, the foils sep*k,hyys co;6 yjn/mn0arate 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 shown1 6j:qtyrg)ap. The spheres have no net charge. R6pg1rj :q yat)egion 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 beco;bc 1e3m.9m-y9r s kqjfp aa1qmes negatively charged. Which of the following is the best ex3r-k.1amcqa pe1m ;qbyfj 9s9planation 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 brought near a neu af*g-3d/opi- ddt pw /v)2stwtral hollow metal sphere suspended by an insulating string, the sphewwt/td* d3o-sfa/vid)p-2 pgre 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 atq:2 :lrcbmqqhb.c d+ 8tract one another as shown. It is known that a positively charg: r:ccqq.m+hbdq l2 b8ed 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 b) pf*:ggg(b abjhhmf1a,f,w ) ases 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 :f,bh)(gf)g g,*pmj1w ah f bathe spheres when they are released?


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