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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 pl*e w/8qxln lz4t8fm5ja9 y *deate capacitor at a rate of 8.4 volts per second. What would be the capacitance of the capmq5jnxldl t4* z9ay*fwe 8/e8acitor?

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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 syn 78pfa x*duwtknkjl9 j40b0. stem, the unit for capaciuw 4jkd7 t8nfkanbp. *0lj 0x9tance 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 w58-p/ly bi buh2 klz)ad d9q;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 pla5d/9pz;yld)2 8ibaq b uhl-wktes 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 ev.bvl/egkkt/;m ioj3dsr +9; b ra/9a lectric field between them. The dism9;v ob sdgl/rba 3tr+ //; kaikve9j.tance 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 paralvf o:1j 7 zr8xywu9hoi zb 674p++geftlel plates are separated by a distance d. They carry opposite charges Q and each has surface area A. Which of the followin+ p6frjy4:7zhuzow oxg 8 e+17fbtvi9g 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 metalgh+gtnknkd,5hry - 2k70ou+ e plates carry opposite electrical charges each with a magnitude of Q. The plates are separatedrkh05 ke+7ngk- g tnody 2u,h+ 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 capacitor is connected to ag7xm5qnb- t 3bd sy1pg)5ci l kgn0ijhn/d*73 resistanceless circuit with a battery having emf E until the capacitor is fully charged. The battery is then7/-* 3cl k7i0dm1t jg5 g3sdiqx)pgnn5bnbyh 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 connected to a bclv7mhy0l4a,+ jtn c-attery. Without disconnecting the capacitor, a student pulls the capacitor’s plates apart so that the plate separation doubles.jvl0 yc m ct-ah,n+74l 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 curr1 q 1(m ;fthd.x3gd tvu1wq4u,r4bsl zent through the 300 Ω resistor when the capacitor is fully charv1,q1fd 1 (3xb d4lz4tu uw;rqsth.gmged?


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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 fully chargel+ w2.bw)h2 xfiv9go wd at 18.0 μC. Whatv )w2woxh.ifb lg w+92 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 capacitance4 n.y(ts;ul 4m t*stph of C are connected as shown;n m(s*h l4ttp.ys4ut in the following diagram. What would be the 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 the capacitors are initiaewc3xdb*/4z k, p8rq qlly 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 unchx- t 79yp+*y w kol,g-hjan.wparged.
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,ldp)z ir +u-) mxxi5i shown, ξ =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 e)34u)nsjiz( .yuju ldquilibrium, what is the magnitude of the potential difference acrosziju)usjlu.3( ) yn d4s 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 of capacitor shown, both switches a87i 3qjj/ 6thmt7d yxare closed simutjmax/djy77 i h3tq68ltaneously. After equilibrium is established, what is the charge on the top plate of the 5 µF capacitor?


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