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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 conductor attracts a second object 4zrh6b,quz4u- fpog.. Which of the following statemeu- pgbzroz6 uqh4,f4. nts 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 vu/g8 6l hq7ulhgxm f+)b1cm .rest. Which of the following statements is true?m1 .f7um/q g ) ghvc6ll8x+uhb

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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 chargenrz* zm. :)c, dtd,20l te54xo* xctgql/maudd balloon remains at rest when placed on a vertical wall. Which one of the following terms is most closely associated with thcomadt/g zmlq *lx2u)xte rd 0d 5c4.,z*t,:ne 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 electru0uv9 1m89hg:apt1i kcvx 4gi ic current out of the paper as shown in the diagram. What is the direction of the associated 8 0:9 u9t kgiia1xvcpg4vu1hmelectric 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. kq -7ep:q ehg2The diagram to the right shows the electric field lines surrounding them. Which of7kpq2qe - g:he 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 i mjl257qk .wyqs the ratio of the charges q1 and q2 , where the diagram shown has a representation of the field lines in the space near the charges57wklqm2. yqj.


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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/bi1 fvaz;aqw k/,lp5 the region near two charges. Which of the following arrows indicb/ ;vwz1 fl,p5aqa/ kiates 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 m7d;it dq*n(: lxtl gzk8e)o 2metal electroscope that is initially uncharged. As shown in the figure, the rod does not touch the electroscope. There is no charge transfer betotzdte n2ilg7;xqm:*8(k) dlween 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 wit/+,p r*ts ospnh 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 *son+r,tp ps /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 charge,hcyoy 71f5 0v 8;pvbee*73;*uejwdsyft dn, k causing its foil leaves to separate. When an objec3 hsjw,oe y*be *5 0v7fuy;vdc 7;8tyndekpf1t is brought near the top plate of the electroscope, 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 conduc0(l +cof.upmnwy*pt 86kkn /rting spheres as shown. Tkl6yn0pmk/f( u+*8c.tprnow he 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 rubslfch)vr g(ek w;;2nyc+r1j :c a neutral comb through their hair and the comb becomes negatively charged. W; y()+ c1f gc2wj ;clkrvrenh:hich 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 neutran8( gdwa ,syi;31dm1xzj +bbwl hollow metal sphere suspended by an insulating string, the sph( +bwjdsa ;nim118wd 3z,x ygbere 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 asa+l)v ,.db xottract one another as shown. It is known that a positively charged rod will attrac)+v s.oda x,blt 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-cj0 xyaj3 /lji+3.ebd7dc;zz e onducting 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 thzx.jb0e37 zci a;djlje3y/+de electrostatic force between the spheres when they are released?


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