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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 charge a parallel plate capacr;1jh l ul,m(aitor at a rate of 8.4 volts per second. What would be the capacitanchr ;al m(,j1ule 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, thgv5m6ve o+b6qe unit for capacitance is wr6m +gev6b5oq vitten 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 distaqpu f7np(r*o :n j42zvnce 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 between plates increasu7 v *o4q(:p2 pjnnrfzes:

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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 electric fieypxj7nn 9fo2x7d-3 ycld between them. The distance between the plates is increased. Which of the follo7cnxfy2d97ynp 3-jxowing 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. Th (fbkvo /0awplm405f oey carry opposite charges Q and each has surface area A. Which of the following would increase the strength of the electb0kf40ao(p ovwf/5l mric 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 pl59/ k7i/38h: hgypjkqbzlpvp emsy -7ates carry opposite electrical charges each with a magnitude of Q. The :km37gy /j8bv/5phqp ek9y i-plzh7 splates 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 cf(mrlh gq i7,ze23ho* i,c3fnapacitor 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. Let zqe,,ih3gff*o( cm h i327r ln$V_new$ 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. Without discoifjr tv2k7ar el *g3 2*gcg,5ga-3rejnnecting the capacitor, a student pulls the capacitor’s plates apart so that the plate separation doubles. As a result of this action, what happens tj 2*r rkaagc3v - eer3igjflt*,72gg5o 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 through;3*7 ww pwronrxvx4exhl/* 4s the 300 Ω resistor when the capacitor is f*h7pwx ;4x/eow4ls r3*vxr nwully 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 fullgivk( /+2 (c gn+evshiupy0,4wg0pn g y charged at 18.0 μC. What is the value of the+2hp((kis /py +0 uggviw0gecnn,g4v 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 capacitas t89r7t 0 v3fd(hgsignce of C are connected as shown in the following diagram. What would be the total equivalenh g78(0s9gfr3dtts ivt 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 ky+p6xk4a*6w*zqc ,otvfx2dj d+9dp.
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 udj /cn oei6h f.o tzkd:196-lnncharged.
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 0et/ oglm.r v:=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 shown reaches equilwe s-alxdu8+z ew.+k* ibrium, what is the magnitude of the potential differenceswku xd. 8eae+lzw+- * 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 configur1 t95.qx )by3ugj1 fbsp7p chbation of capacitor shown, both switches are closed simultaneously. After equilibrium is established, c stjy3bqu1b7f)h1bg9xp 5 .pwhat is the charge on the top plate of the 5 µF capacitor?


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