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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 chn69 :sq8yyolj arge a parallel plate capacitor at a rate of 8.4 volts per second. Whatysq 6o ynl8:9j 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 fundament3.s)qxqw + 8wcd5ck ft/ ixw(lal SI units in the MKS system, the unit for capacitance is wriksc8wt(wd/ qxqxcw 53)lf+ .itten 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 cha(,yx5/ ngtzre 9ehle3rged by connecting them to a battery of potential difference V. The battery is disconnected, and the plates are slowly movedz3lh et/r(9x en5,e gy 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 ins .rt5c +yszf7i 6b,korulated plates have a uniform electric field between thes6 +r rytf.5kzbco7,im. The distance 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 arjkk*(ns; 8ynje separated by a distance d. They carry opposite charges Q and each has surface area A. Which of the following would increa;*n8kjk s jy(nse 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 m3y 40 tdm+lxgmetal plates carry opposite electrical charges each with a magnitude of Q. The plates are separated by a distance d and each plate xtm03 4mg+dl yhas 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 a resistanceless 1 xm.qywd/ hhh bcjyp8)8*q,ccircuit 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 x hc 18wy *hqbm/j ,yqh.cd8)pare 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- eo whpa 2q:w bnjmpx+k2i46z u(.se- 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 to the vo-jxm2sbh6-o2npwe( pkw+z 4u:.i aq e ltage 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 through the k/ o/ub0ezg1tns7e btr))3 pk300 Ω resistor when the capacitor is fully chrb71ke)/koubzt/tp 0nsg )3earged?


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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 ,zk wfbjma1 4t6;4chscapacitor is fully charged at 18.0 μC. Whtc;zk,64 a mfb s4hj1wat 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 capacitors each with a capal4v3o)0h abcp citance of C are connected as shown in the following diagram. What would be the total equivalent cop)03c lvbha4 apacitance 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 6u/i9zz tu8xq the 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 initiaa;g pi9tg wgv tu.l84xna5o 6vgi/-)kqc+1 ually 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 zatd3+ fr+vbsasbaf37+h2- ii7 c l2 c=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 lrg3/:l7us y hnd70emshown reaches equilibrium, what is the magnitude of the potential difference across the capanh 3:e ly/sud0lrgm77citor?


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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 c .sq8vmu .3bzsapacitor shown, both switches are closed simultaneously. After equilibrium is established, what is the charge on the top plate of u.sqs3v8zm.b the 5 µF capacitor?


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