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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 ch+ *cclkqdn+m 4y)s)jx*l jpf) arge a parallel plate capacitor at a rate of 8.4 volts per second.flmcs jd+)c+yn *k)pqxl) *4j 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 sey)p0eli* cw y), :hspeven fundamental SI units in the MKS system, the unit for capacitance is written as which of the followinp: we ey*cl)h0yip ,)sg?

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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 chq kz9 htd j:;tj-uy3wx j3)1);ybhqe parged by connecting them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As the distance -;1h3kjdtu ;y wj )9p 3 q:ej)bqzthyxbetween 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 uniform electric f5 mc w/9mvncu3ield between them. The distancvm3n9 wc u/5mce between the plates is increased. Which of the following 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 parallel plates a:gpxz zcois.dh)8 56 sl1r6c ore separated by a distance d. They carry opposite charges Q and each has surr ihgx oczo 8sz:l)s5d616c.p face area A. Which of the following would increase 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 (mi9ulvh-bcvd)y - 7(0m irwhplates carry opposite electrical charges each with a magnitude of Q. The plates are separated by a distance d and each plate haihm) yr9cvm(id-u 0v (bl-7whs 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*h0lui6inydg m-q he) 5i:v;y connected to a resistanceless circuit with a battery having emf E until the capacitor is fully charged. The battery is then disconnected from the circuit and the plates of the capacitor are moved to half of t5uhiy i*ve-in): qlh; 0yd g6mheir 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 disconnecti(yc(4/g vgqd8 vbatm:3; c8vugh fk46uono/ cng the capacitor, a student pulls the capacitor’s plates apart so that the plate separation doubles. As a result of this;3co 8qm6vhncu/( gcy/ (gb gdtvku844:vfa o 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 accompa-w +v ;h)hytrv/bm ,funying figure. What is the current through the 300 Ω resistor when r,t wbvvf/umy-)h h+;the capacitor 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 3.00 μF capacitor is fully charged at 18.0 qy 5 my;0a2ska μC. What is the value of the power su 5 mqkyas;2y0apply 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 capacitors each with a ca kvusmcp8 ee ;dqsb,6*wao,0 7pacitance of C are connected as sh 8*k;7e6 u,mevb 0pws sa,cdoqown in the following diagram. What would be the total 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 the capacitors are initially unch +gjgp- xb3 vn(k.m-nxarged.
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 i l;9ojlff:vl b r96ew1nitially uncharged.
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 shown, ξ =6.0 9os rw,7e3oxvV, $R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . 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 equilibrium, whar6)ga/8fsbbt 7oc 6hq t is the magnitude of the pot6b)bhq gfc7/stro86a ential difference across the capacitor?


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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 shown7s.u6gu kwx/: *rrsxl , both switches are closed simultaneously. After e gx 6x7u*/sw.rls:ukr quilibrium is established, what is the charge on the top plate of the 5 µF capacitor?


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