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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 chnxw)+4ugbcobw x 9 : y, m5dqw2xd+u7varged conductor attracts a second object. Which of the following statements coul,xd u7w2:u +c4owqbxw5+ vmgdn b)x9yd 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 negast-at(55 1ij0cqg ekz tive charge and held at rest. Which of the following st5ktgct1s 5q zi (-ja0eatements 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 placm7xaz 1q ;hf-ej tx*vb0 7.uoref;cu*ed on a vertical wall. Which one of the following terms is most clm;r*;q u-xcju1hovxebt7e z7 0fa.f*osely associated with 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 convention1 nqq01 fn:dldal electric current out of the paper as shown in the diagram. What is the direction of the associaten101fq:nq ld dd 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 equ kz)45ie ) :jy1uaarbgal magnitude. The diagram to the right shows the electric field lines surroundii 5uae)4ar) 1b:zkgjy ng 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 shownlnnxfq m/3: awd:6l54ye bh1i below, what is the ratio of the charges q1 and q2 , where the diagram shown has a representation of the field line3:i5h 1ny4m xn lle d:f/baw6qs 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 iohg7up s5 4q(xs placed at point P in the region near two charges. Which of the following arrows indicates the direction of the force on the positive test c px(54qu hs7ogharge?


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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 br p po-yd2+zd;id9+jqvought 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 f+d+pd-p d2qo;vj y 9izrom 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 object is brougqiqrr.5oj ; c-ht 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 charger;5q rji -o.cqd 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 charo) /p*kc6ktw wge, causing its foil leaves to separate. When an object is brought near the top plate of the electroscope, the foils separate even furtwc pk6kwt)/o* her. 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 ikcdby/ ( *sy/* ) qnjfnxq,ap1s placed between two insulated conducting spheres as shown. The spheres have no d/knp fc ,(q )*jb yqxy/a1sn*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 comb through their hair and the comb becomesib qfgpy:5-g, negatively chbi ,g-p 5fg:yqarged. Which of the following 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 glass rod is brought near a neutviktzj0s/j-5 it 6z;wral hollow metal sphere suspended by aivz ki5/ ;ttwj06z-jsn 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 ym11tp. ,ms/ask as t6another as shown. It is known that a positively charged rod will attract ball A. tsmtsa s,/amy 1.16kp
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 t qsm0 +mib lggr5 c4sg:l, tqz7b,5n.charged 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 the following correctly illustrates the magnitude and direction of the electrostatic force ,ms qml55.gn tcs,bztb7+r i:g 0g4ql between the spheres when they are released?


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