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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 seows.5 s8zt;rd 7tyms(f +p iy f2g,6nwjpwa2- cond object. Which of the following stateswws ; +(izo.fgs2pyymp- d5tfj28, 7a6tr wnments 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 c4 ggksz2/njp.4s w-wbharge and held at rest. Which of the following statemes44/ pjgng.k-s2wbzw nts 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 chargpfp(wi1f p:rd vg;bqq +j3(c/0m-gpoed balloon remains at rest when placed on a vertical wall. Which one of the following terms is most closely associated f(vo +1cpd/jqf q(i;rpbg3-:0g wpm p 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 conventional elec*ecb ) ctx)4dctric current out o*cx cce4b) )dtf the paper as 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 magr2l-pa kpz: 2bvp n2e+nitude. The diagram to the right shows the electric field lines surrounding them. Which of the following statements is t ppzbal2nk2:r e2+v p-rue?


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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 of the charges q1 and+ cfx*m/f*ctz,q w33 9cjolts q2 , where the diagram shown has a representation of the field l+3f,/c* sm xo wczfqt3jt lc*9ines 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 region near w,*v q.hde(zmp19 w.(hohbcwew8 lu, two charges. Which of the following arrows indicates the direction of theq,uov,wwe.*81bh( w hde9 whm .p(cl z 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 electroscope that is inis( ah*br2ksn: tially 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. Which one of the followkr2as:shn(* bing 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 contac4bzy,tvl +sx8 t with the top of an uncharged gold leaf electrosc4, ts8v+zyblx ope. 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 given a positr 5;a)/b1pz; zpz ene8hcc* tmive charge, causing its foil leaves to separate. When an object is brought near the top pten;;p*5)e mh8rbzcpc1/ azz late 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 betn4wp7kuucbk 2/osir tyhfv av+9bfi6*2( 6b4ween two insulated conducting spheres as shown. The spheres hac6/ k6nia74wpvukbof f*4uh9 t(rbbv2s+y2 ive 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 kxe-x+d.rbhu 2-o pf/hair and the comb becomes negatb2- +h/eo- xkdfpxru.ively charged. 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 chargedlq*71//-dj5gbxv 4wkk oa sbk glass rod is brought near a neutral hol*/vbk/54bkgoaq-wjx7d skl1 low metal sphere 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)cwh06;pn) )v aozrau hung on insulating threads attract one another as shown. It is known that a positively charged rod will att6waa ))h c upov0)r;znract 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 noij6(p 7j /liirn-conducting spheres on insulating bases areplaced on an air table. Sphere A has a charge +3Q coulombs and sphere B has a charge +Q couji6i7/l( irpj lombs. Which of the following correctly illustrates the magnitude and direction of the electrostatic force between the spheres when they are released?


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