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习题练习:Capacitors



 作者: admin发布日期: 2024-08-22 20:08   总分: 16分  得分: _____________

答题人: 匿名未登录  开始时间: 24年08月22日 11:00  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  
  04.36: An electric current of 6.8 μA is used to charge a para bt/1z:8dp wanllel plate capacitor at a rate of 8.4 vow1an ptdz:b8 /lts per second. What would be the capacitance of the capacitor?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.36: In terms of the seven fundamental SI units in the MKS system, the u7+t 8ebx46d u36dbaurnhjybk;qwml j 4*o8z5 nit for capacitance is written as which of the followind 4 jkzmurbj qnulo5 h6;73aed 86b*wt8y4 b+xg?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.29: Two large parallel plates a distance d apart are charged by c ,,llrg re*xgu,3nw p.onnecting them to a battery of potential difference V. The battery is disc ug erw,pxrl*n.,g3,lonnected, and the plates are slowly moved apart. As the distance between plates increases:

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.34: Two large oppositely charged insulated plates have a unihydm5ktzh) (;trw *y4 form electric field between them. The distance between the plates is increased. Which of the follyh5rzwm(;hd*t4t) ky owing statements is true?
I. The field strength decreases.
II. The field strength increases.
III. The potential difference between the plates increases.

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.37: Two isolated parallellb ;mu 4+ea7gl plates are separated by a distance d. They carry opposite charges Q and each has surface area A. Which of the following would increas m47+el baul;ge the strength of the electric field between the plates?
I. Increasing Q II. Increasing A III. Increasing d

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.18: Two parallel metal plates carry opposite electrical chargesj+/ks2cun4 kht5kb9f i6j b 4l each with a magnitude of Q. The fkl 44k+ ciks/2 9unt5jj bh6bplates are separated by a distance d and each plate has an area A. Consider the following:
I. increasing Q II. increasing d III. increasing A
Which of the following would have the effect of reducing the potential difference between the plates?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.39: A parallel-plate capacitor is connected to ak m7zh vy h49cr3azypdd /(/)m resistanceless circuit with a battery having emf E until the capacitor is fully charged. The battery is then disconnected from the c(md7rv z3/d) 4cyaz/ 9hm phykircuit and the plates of the capacitor are moved to half of their original separation using insulated gloves. Let $V_new$ be the potential difference across the capacitor plates when the plates are moved together, $V_old$ be the potential difference across the capacitor plates when connected to the battery. $V_new/V_old$=?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.42: A parallel-plate capacitor is connected to a battery. Without disg ( m:an6xst 9a0y bh3p,hss2aconnecting the capacitor, a student pulls the capacitor’s plates apart so th:hh xta6s 9sb2 (ga ,mp03nyasat the plate separation doubles. As a result of this action, what happens to the voltage across the capacitor and the energy stored by the capacitor?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.31: See the accompanying figure. What is the current thr-jgw nw: osua62:hsl)ough the 300 Ω resistor when the capl w-: j2 ash)6snuog:wacitor is fully charged?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.39: In the circuit above, the 3qdurf9 g7l,z 3 ;tv;,ljo/qfz.00 μF capacitor is fully charged at 18.0 μC. fqltu z3 o9lrjq,z/7,;vfg;dWhat is the value of the power supply voltage V?


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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.19: Three identical capacimyr3t(a-:gw/di7x h itors each with a capacitance of C are connected as shown in the following diagram. What would be the to gihrayw:d(xm7 i- t/3tal equivalent capacitance of the circuit?


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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.43: Assume that therleexl hgp;-p n :iivv-1biqn/(*5 .b capacitors are initially uncharged.
At time t = 0, the switch S in the circuit is closed. At that instant, what is the equivalent resistance ofthe circuit?


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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.44: Assume that the capacitors are initially uncharged. c ;ii mxk)(/11v+u seystm0jczg ; z*q
After the switch has been closed for a long time, how much charge is on the positive plate of the 3 μF capacitor?


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.31: For the circuit suu *eywvj1 re2f/ns +rpi92-yhown, ξ =6.0 V, $R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . After operating for a long time, equilibrium is established. What is the voltage across the capacitor at equilibrium?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.47: Once the circuit shown reaches equiliql4p)nx x/ s/ibrium, what is the magnitude of the potential difference across the capacito /q4n)lsx i/pxr?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.48: For the configuration of capacitor shown, both sw1 vph+lo6asl8;o ;i(jvr b)l ritches are closed simultaneously. After equilibrium is established, what is the chars; l8l lioa 1h(6vj+;orr)vbp ge on the top plate of the 5 µF capacitor?


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