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习题练习:Electricity and Circuits: Capacitors

 作者: admin 发布日期: 2026-05-21 08:54   总分: 16分  得分: _____________

答题人: 游客未登录  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 parallel plate z f;zt-s)d0 tpaiz * m0o 9ypiyc80r(mcapacitor at a rate pm9-z0i)(ozt ap8fz s*00dcrity; ymof 8.4 volts 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,gnqfw(f6j -n3s5vk .p.7rr u w the unit for capacitance is written as which of theqj3fvr(6-sn5 7wgp.r fk.n wu following?

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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 disaq+o y+, tndo; 0a6yplgy6pt 4tance d apart are charged by connecting them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As the distance bel4+,p o;tta n0qdy6apyyg+6 otween 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 pb c2 vaeb,g8*ilates have a uniform electric field between them. The distance between the plates is increased. Which of the followibiacev, *g8b 2ng 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 parallelc 1i 5q5difrq, plates are separated by a distance d. They carry opposite charges Q and each has surface area A. Which of the q ii5,1rfqdc5following 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 plates carry opposite electrical charges each wi. h*3od ,7sbkro ga rmf./ikk/th a magnitr/fi rmk,/ka.gksd b.o *o3 7hude of Q. The plates 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 conpodax8u8 ,a hz/ fmf:5hha/h .nected to a resistanceless circuit with a 8umzaoafh /ahx/8,5h dfp .h: 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 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 conn sl b2*9xfcqapqs665hj )oh ;nected to a battery. Without disconnecting the capacitor, a student pulls the capacitor’s plates apartnb ;jhoc lxf)956phqqa6 2s*s so that 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. Wpq * w1d.4g+lxhtvn2w hat is the current through the 300 Ω resistor when the capxl2* w+1 pgqn.tw4hvdacitor 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 capp/dd39erf b-d7 pkl 6bacitor is fully charged at 18.0 μC. What is the value of the power supply volta-dpf eddbkrl9/ 6p37bge 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 chuik b: bz9ng*d4 s;x31e3jliapacitors each with a capacitance of C are connected as shown in the following diagram. What would;k3enibd 9 xhig l1b*u 34zsj: 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 uncharged.ay9; lddfri5ode; 5)js75dgl
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 capacityqb:+tajw44qj x8 7kw7ekk.wors are initially 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, n-,g (mtf;, kvxxe9f wtut9b,w1mr/u 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 circu) czsca;;o-:celay u:it shown reaches equilibrium, what is the magnitude of the potential differ zyac:ua; )csl ;e:o-cence 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 cap 9abq,2s.n ngoacitor shown, both switches are closebnna.9 og q,s2d simultaneously. After equilibrium is established, what is the charge on the top plate of the 5 µF capacitor?


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总分:16分 及格:9.6分 时间:不限时
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