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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 capaci vy6dze+zbbu pb;ah ,/e*d33ntor adv +uyz3/hneb;e, z *d6pb3bat a rate of 8.4 volts per second. What 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 fundamental SI units in the MKi*, 0xrysrb)ljhm/ 4l S system, the unit for capacitance is written as whichxs,/)b y 4irlhrjl0m* 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 connectinmpw ,46njo- bhg them to 64w-bjoph, nm a battery 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 insulated plates have a uniform electric f 3k3m 7v1z kxl lep5lw,fb1;wkield between them. The distance be1pk;m3bf 7 elx l5wwkklv z,31tween 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 z;if n:0z3mimplates are separated by a distance d. They carry oppo zf0 nm:m;i3izsite 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 opposite electrical charges each witobpi+u u;1qh12b:semsi+nk, 5 eqv3 oh a magnitude of Q. Th,mseqk 1+:unqs+3b ei5 pu vho ;2b1oie 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-plate capaehsm( 29x.b/q -rscuc :ud ft+citor is connected to a resistanceless circuit with a battery having emf E until the capacitor is fully charged. The battery is then disconnectefmd se x2 cbr( -suh/:9+.tqcud 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 battery. Without discr( a2l*a gd3veonnecting the capacitor, a student pulls the capacitor’s plates apart so that the plate separation doubles. As a result of this actioalg*ed2 a(3v rn, 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 figu jspq)jp, z kuk*+jb15re. What is the current through the 300 Ω resistor when the capacitor is 1s kz5p *+j),jjbkuqpfully 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 fully chargemvzfh rbfz4n4qe5+ ph w+6 x,0d at 18.0 μC. What is the value of the power supply volem+6qwp 4hvr4fb n+ xz ,5f0zhtage 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 cun66m,/coi h rapacitance of C are connected as show6, /ic no6humrn 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 initially unchziqd)p7 g7:ytg06 :cq x(j bacarged.
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 unc l.zhl :isch(x9sj5o9 ys bq)8harged.
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 =6.0ltr0a07abt , x 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 equu e ,xb5dx5or)i,im1lilibrium, what is the magnitude of the potential difference across the capacite15,5uoxixr) ldbm, i or?


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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, rg, yq-,q0;;f2j ebrz c6kqeb9 + dmzp both switches are closed simultaneously. After equilibrium is established, what is the charge on the top plate of the 5 µF capack;zf q2cqz9y0+d6jre m;,g-b, eqbp ritor?


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