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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 se(*l*alt 4.o qbt.nhqxcond object. Which of the following statements (qnhla q4*t .xtlb .o*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 rest. Whigfwopby:33 r+ch of the following statey+ bpgo:3fwr3ments 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 on a vertican28- me-wed ,mfj )rjrl wall. Which one of the following terms is most closely associated with the electrical phenomenon allowing)me r8fjwj-dme, r2 -n 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 electric currena. wbprl) v6b 67:r1gzohni5mvy69tut out of the paper as bn 7l96r6um .zi y6)tvpa1 ov5 bhwrg:shown in the diagram. 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 magnitud db.fdjbd4b( 2h(p +xje. The diagram to the right shows the electric field lines surrounding them. Which of the following statemen(p+ d4ddb b jb(.fx2hjts 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 avovl6/lvm f 2r,+xtq(2oik*of the charges q1 and q2 , where the diagram shown has a representation of the field lines in the space near the charglq*2o 6m faivx+, 2vko/rt(l ves.


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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 region near twaooocw 7*uf.6o :bgj0 o charges. Which of the following arrows indicates the direction of the force on the positive testouo :jc0.7*gfbw aoo6 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 electroscope that ifhm teo0l(-7va,mw+ls initially uncharged. As shown in the wmaotf(l- ,7mh +e0vlfigure, 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 contact with t-tuj 2-coyc /ohe top of an uncharged gold leaf elj2o-c/oyc t u-ectroscope. 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 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 gi8 1qxbdx:7 didven a positive charge, causing its foil leaves to separate. When an object is brought near the top plate of the electroscope, the foils separate even further. We could conclub d1xq x87ddi:de


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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 is6vdw/2ps np + m9wi:--tpbmyj placed between two insulated conducting spheres as shown. The spheres have no net charge. Region II hvy:pi-w mspt9 -wnpb/d26+mjas 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 n 4 mouivyv*5/wx1w 4kgeutral comb through their hair and the comb becomes negatively charged. Which of the following is the best explanation for this vx/g i*1 kw45yovwm 4uphenomenon?

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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 nearn,q1i+u3w nu k a neutral hollow metal sphere suspended by an insulating stri n,uk+iw3u 1qnng, 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 insulati xfn/.xu7jo;dd ne +h,ng threads attract one another as shoeuno7+ .,d jxhfn;d /xwn. It is known 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-conduwt pp;pmp1xp+xglhg3 .g9yaw* )1j2b cting 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 dir.wg*xpy;)9l +p3jgx1pph1twb2pa gmection of the electrostatic force between the spheres when they are released?


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