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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 ( a+ g wv a/itkv7:;k**7 y7hrqypximois used to charge a parallel plate capacitor at a rate of 8.4 volts per secokthr+ * pia x7m:ov*w;(iq v/ y7ga7kynd. 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 sevv, qb(dma/n9ben fundamental SI units in the MKS system, the unit fobb/dnm,a(9 qvr capacitance is written as which of the 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 distance d apart are charged by connectipl 7ww33wpvz /ng them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As the distance betww l7p/p3 3vwzween 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 elecav*c8aw st*zv-8y92a ahc* ir wwit:9tric field between them. The distance between the plates is increased. Which of the following statemewi8 :** 8wta9ra v9ia *swc-tcy hzav2nts 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 phtx1 svwu5r4fc- .+ mclates are separated by a distance d. They carry opposite charges Q and each has surface area A. Which of the following would 4mhur +xw5.-vst cf c1increase 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 owo k4zfn ,-se* gt8p7qpposite electrical charges each with a magnitude of Q. The plates are separated by a distance d and each plate has an area A. Consider thezs-,t7oen 48g* kwqp f 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 /ae,zzf+f p3jis connected to a resistanceless circuit with a battery having emf E until the capacitor is fully c /fje,3apzzf+harged. 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 connectedn epre(zse/f/ 63-ypt to a battery. Without disconnecting the capacitor, a student pulls the capacitor’s plates apart so that the plate separation doubles. As a result of this action, what happens /r s e3ef/-ep zyt(np6to 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 fiepza: s* 02zkagure. What is the current through the 300 Ω resistor when e:z 2apka0s*z 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 capa k2sld0q1 07zwt8u uixcitor is fully charged at 18.0 μC. What is kdq u0 lz0s1wui x27t8the 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 capacitors each with a capacidlun 3i wl,bpv/0 61qht,y pi3tance of C are connected as shown in the following diagram. What would be the total u1 wnbyh0,36ti3 lp qp/i,vldequivalent 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 ep.804u5.v vav2 to wb:7 zfmnygrnc8 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 capacitoem 5n4pcxsch5c+w+jrpmw o6,q hv *; 7rs 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, ξ =6.0 qyx/avv;b - k;nx h6u8yh,i8vV, $R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . 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, wfm( hpzt83m+ 3ii:rlbhat is the magnitude of the potential difference (li:zh83rp+ btim3m facross 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 configurk6 6ar dqx5ek24aq:kogsn5) kation of capacitor shown, both switches are closed simultaneously. After equilibrium is established, what is the charge on nkr)q5kod :eka 64 kg2x5qs6a the top plate of the 5 µF capacitor?


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