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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.n 4t rezjjw;ngtr034+8 μA is used to charge a parallel plate capacitor at a rate of 8.4 volts per second. What would be the ctnzrrwn0+34 j te;jg4apacitance 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 f h.)ley5,jk aseven fundamental SI units in the MKS system, the unit fore5h)jy l,.a fk 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 connek*ls29.tj-ky+rh7va rcjg5 rcting them to a battha2rlr7-yt 5rv+ .jkg sk9*jc ery of potential difference V. The battery is disconnected, 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 insulaegybaas4-vo+qh 45; hhnu41g ted plates have a uniform electric field between 4 4 e14hqau nysabgvhh;go +-5them. 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 are separated by a distance d. They ca od av/2(kla,rrry opposite charges Q and each has surface area A. Which of the following would increase the strength of the elecok,dr a2l/a (vtric 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 plagi8l)e28i n9gh0 upc6ibc3 u etes carry opposite electrical charges each with a magnitude of Q. The plates are separated by a distance d and each plat ngb eicii8ug86puc9l0he3 )2e 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 jgda-zv;0 lvdky*hr 8j w5+epj/z5-l capacitor is 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 their original separation using insulated gloves*/rhvz k lej5yj w+vgplz-a 5j0d;8d-. 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 connecte*f,s38 e 9s)z7x:fxa kbpls aorq :vy4d to a battery. Without disconnecting the capacitor, a student pullszfxa)x a s 8sv*pl73rbs:9e:kf4yq,o the capacitor’s plates apart 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. What is the current thi dohxqe in22, .:s,bqgi* eh1rough the 300 Ω resistor when the capacitor ihig1q, bie*,.oqsx2 2ehn:d 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 fullh 26ma1nu*ua by charged at 18.0 μC. What iuanuh2a m* 1b6s 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 identicac;s/dz rq:kt7l capacitors each with a capacitance of C are connected as shown in the following diagram. What would be the total equivalent capacitance :ktdcs ;q/7r zof 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 g sl d,cz,7l,n2ifmi . 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 uq ayt,/r 1sl(vncharged.
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 V, m 9jhstgp:s 0ipu/-3p,uh aq- $R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . 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 equili6 kugvfw6s4jj* *ka7// zkfyjti/ y6mbrium, what is the magnitude of the potenw*kmaz/t/6 4/fuj gy6if*y kv j67jk stial 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 oj)y* lr6fs-ftzq. f uaz1l0, ry)6u agf capacitor shown, both switches are closed simultaneously. After equilibrium is established, what is the chargf ylu1rsg)yaj6 ,zf t*u.0r-zqfl 6a )e on the top plate of the 5 µF capacitor?


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