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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 conducto-rb zg5 64xzm xsvee/+r attracts a second object. Which of the follo 5+ersx4-mzebz /v6xgwing 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;yb fo0,okuh g kkiv6hx1)y0: .pn2 is given a net negative charge and held at rest. Which of the following statements is true1gkk0pn o. hkhy;iy :2f boi06x,s v)u?

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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 w gtvu9p9cqn zao *y.7so2)go1hen placed on a vertical wall. Which one of the following terms is most closely associated with the enc*pg)v.2s toauo gyo91q z9 7lectrical 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 yn .a(sl-r7 foend on carries a conventional electric current out of the paper as shown in the diagram. What is the direction of the associated electric field at poinr y- o.f7(naslt 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 hm.gapa fx:e h+:+ au5pave equal magnitude. The diagram to the right shows the electric field lines surrounding them. Which of the followin+a e+5u phamf:g.pax :g 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, zvf6g(*fp5yx z.p2 abwhat is the ratio of the charges q1 and q2 p zy2a zv*x56 pbf(fg. , 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 the regioj.3bg)5z f vzstp0qugx )tm-*n near two charges. Which of the following arrows indicates the direction of the f.)0 u3gqtt )p-j5mx sf*vbgzzorce 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 met5q:lt 5at5sga3 v o1ztal electroscope that is initially unchal5gozq5stt: v 3a5t1arged. 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 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 brought near but not in contdyx7f xi)7n90wspmk1 act 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 res xd7kyip1 n70wxm9)fmoval 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 givtw99b0h m aw/a6a,mhs:kya d (en a positive charge, causing its foil leaves to separate. When an object is brought near the top plate of the electroscope, the foils separate evemhdha:6 wm(9 0a ak9/sa ybwt,n 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 ;);j1ypcbwte62 qj42 hwvujmbetween two insulated conducting spheres as shown.)uj et1jpcqvhj;wb;m y624 w2 The spheres have 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 comb through their hair and the c-0wmm8fit28bxru m -tc84jxtomb becomes negatively chuw x 8-ft24i m x8ctrm0jbm-8targed. 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 )oy9s h8pkdy, rod is brought near a neutral hollow metal sph ,os8pdyk9yh) ere 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 b j.uae36 jdy,attract one another as shown. It is known that a pobea.d u 3,6jjysitively 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 nod87qcb.06 k. y 8ot7zwmacgban-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 za bwc q0a7mk 8y.7.t o8bcdg6between the spheres when they are released?


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