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习题练习:Electricity and Circuits: Capacitors

 作者: admin 发布日期: 2026-05-21 08:54   总分: 16分  得分: _____________

答题人: 游客未登录  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 qifo6yj+; a,xμA is used to charge a parallel plate capacitor at a rate of 8.4 f y6i,jo+ax; qvolts 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 fundame ,gc5evmxvr9 ap;)*j sntal SI units in the MKS system, the unit for capacitance is written as whichxpcjma g );e*v9s, rv5 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 7ddx i3v0v2quo31hr/ q )m ecsapart are charged by connecting them to a battery of potential difference V. The battery is disconnected, and the v)o3dm2vhq1d 3iq7 secur0x/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 chat4vj 8r1k pax8kj4ou7 wr .kgc)5 e2hlrged insulated plates have a uniform electric fieh 7ke2.kxrjl a4uv t1pw8)kor5j4 gc8ld between them. The distance 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 parallel plates are separated by klx2;lkne c/h 3y -m.jm5va(va distance d. They carry opposite charges Q and each has sum/ ykx2 a -k3 (m;cjlv5nvlhe.rface 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 elecp tr( k mb04;yb5e,tvotrical charges each with a magnitude of Q. The plates are separated by a distance d and each plate has an area A. 5r4bvym k 0;tp(e b,otConsider 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 resistanceless circuit wiu*/ 5vodd x9g/imy7fhth a battery having emf E until the capacitor is fullfyg 9iu5*h7/omvd/x d y 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 $V_new$ 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 cm0+ . ov:ckr(sjlgxc7onnected 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 happens to the volj+og 7cmsr 0xckv :(.ltage 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 ch0 p,omrhkw ;u avmh7 o(y0;+iurrent through the 300 Ω resir;wpym7h+0iv; (ak mh 0oou,hstor when the capacitor is fully 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 charged at 18.0 yim *7l.f ium.4bycf4 μC. What is the value of i7clu.ffb*myym 4 .i4the 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 capacitance 52 1,pmkk5b-ruwcb kxd,o q ;bof C are connected as shown in the following diagram. W,1d5 r x;-muokkq, bbk2 bp5cwhat 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 ini-* ljio1x/ d tv(isuaz)o((fvtially 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 n.(f2. p (,kvv1 oelqdgr/ wykcapacitors 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 circu+v / rew4+cimfit 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 circ-or,dm v66ct r. er(x9ctn-fsuit shown reaches equilibrium, what is the magnitude of the potential dif,-9eorm t fr66ncsc(txrv .-dference 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 configuratio5jmjo.q.1 w nan of capacitor shown, both switches are closed simultaneously. After equil5j .o1wqj.anmibrium is established, what is the charge on the top plate of the 5 µF capacitor?


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总分:16分 及格:9.6分 时间:不限时
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