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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 chat9llhf9, )zi trge a parallel plate capacitor at a rate of 8.4 volts per second. What would be the capazthli)lf9 9t ,citance 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 seventzf+-yl3 r oepw*1y6f fundamental SI units in the MKS system, the unit for capacitance is written as which of the followino1y6+3fwelr zt*pfy- g?

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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 chargqd iw -1v)4hkded by connecting them to a battery of potentik -wvqd1)id4 hal 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 5 m sudg0d2; y+h3mfcdcharged insulated plates have a uniform electric field between them. The distance between the plates is increased. Which of the following h + 50;mscd3ydmdfgu2 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 se;+w1t ugxl; bs-vuuq8parated by a distance d. They carry oppositbq+w;1-8u ;uvtlu g sxe charges Q and each has surface 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 plates carry oppo)(mv(frhu o-g site electrical charges each with a magnitude of(v )o-rufg (hm 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-pl2 vujzr4:xk5nc c 2ti8ate 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 oft: rz x5cv48 2i2njkuc 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 battery. Withou ez; brzx/ y;.ojzah0n18s y;jt disconnecting the capacitor, a studea/;erbzojs .; yy 0;h1xz8njznt pulls 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 ijj zk 3;k4o+os0xqii a(a+;np s the current through the 300 Ω resistor when the capacitor is fully ciz(k +ip j4aq oan+xk; so;03jharged?


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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 fully0 ry 15)y 2uhh.sj0c6i ii6h gbro2jdk charged at 18.0 μC. What is the value of the 5. ) 66y rhi bis21rd0khhju0j2cy iogpower 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 capacitance ofto90 1hhh r+og C are connected as shown in the following diagram. What would be thhg th +o01o9rhe 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 74ov/a0u 0let jja+dc 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 initi.n p7 xgmxkt0:ally 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 V, lo0fcenu c.n.xl *lua,ma+ (nl,4k1 s$R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . 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, whatomah rjz6+yomd;9 nl3 .h:lz2 is the magnitude of the potential difference across the capacitor? m 6rd2 zn3a9;lol j:hm.ohyz+


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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 shown,qlks+/s6*c5 q nfb rl) both switches are closed simultaneously. After equilibrium is established, whf sqqb/l6*5) ksl+rnc at is the charge on the top plate of the 5 µF capacitor?


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