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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 pd7jpe jn0a/ n3late capacitor at a rate of 8.4 va0nd je37 /njpolts 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 z, oa rf:1yqiphoz80/ in the MKS system, the unit for capacitance is writz 0z :8rp /ohiao,q1fyten 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 connecting bxq6/- n ssc*ythem to a battery of potential difqc6s y/x-n*b sference 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 phuig rde5e )6kb:7 ;w uroq9u/lates have a uniform electric field between them. The distance between the plates is increased. Which of the following statements is truebr56idkeu g:7/e ;qhu9rw o u)?
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 elgeb 929u /j.d;rjqxcarry opposite charges Q and each x99 ;jeu.rjl 2bd/geq 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 op xq c/g16elns;posite electrical charges each with a magnitude of Q. The plates are separated by g;e1q scln/6xa 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 a resistancelb9 t+jootgf ::ess circuit with a battery having emf E until the capacitor is fully charged. The battery is then disconnected from the circuit and the plates jt+:9o o:tgbfof 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 caih-c *0zoj pn3pacitor is connected to a battery. Without disconnecting the capacitor, a student pulls the capacitor’s plates apart so that the plate separation doubles. As a result of this action, what happecjz i-h3 0n*opns 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 through the 300 Ω rpl )0 x*q5kro6m1hhpi esistor when the capacitor is fully chrmipq6kh1)0 5oxl* p harged?


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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 * v.b)at 6e: l7zbbarvl7efsx :mg3(pis fully charged at 18.0 μC. What is the value of the power supply s:.a67lfv)vzp 7 3(mbg alebebt x: r*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 of0* khx s1qmbr3.,zna z C are connected as shown in the foll0qarb, 1z hms k3z*n.xowing 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 capacitor 5c3)pbh;)t gm k*hxvqs 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 vyfg)z,: 1yruf ; (sre 8y2ymg capacitors are initially 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 =6.0x0wm 1)/y,vtq k(l e+lf( thra 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 equili *pu tf+kny8s,y,az /.r .db7jkvc ;cabrium, what is the magnitude of the potential differen;udtyvp. a*/ykn 7+sj. zr, kfb8ac,cce 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 of capacitor shown, both switches areqe,zs v.q0g;w yemf,/vmb) 0p closed simultaneously. After equilibrium is established, 0z 0bmwqv,m;ey )epfs / g,qv.what is the charge on the top plate of the 5 µF capacitor?


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