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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 pa* fmt7tcd o7f5rallel plate capacitor at a rate of 8.4 volts per secondt md5*77tcff o. 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 MKS system, ted:u jovv3-jnla d6q 8;ac*v)he unit for capacitance is written as which of the8-dau 3ejdn6c*:ov ; l vva)jq 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 (-vtor0z;qei.5uyg/s 7 yhngby connecting them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As the disryy-0h. q7 is 5noeugtgvz(/;tance 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 electric8a56rw5t5 n9m q z5b v-ptmalx field between them. The distance between the plates is increased. Which of the following statemen5bvmqat9 l5ar5zwp 85 t-6x mnts 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 separaw/s;idhpx* si oo280 cn fpgx uc+*:q4ted by a distance d. They carry opposite charges Q and each has surface area A. Which of the following would increase the strength of the electric field betwe4 g;2 pdf+* 0cq*sp hn/x8scuiio:x owen 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 e(4f+qwf.ofd7kfh p 5dlectrical charges each with a magnitude of Q. The plates are separated by a distance d and each p f7w.o5fhf4q+pfk d (dlate 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 capacitor8k+r2m;t sa4u;t nfgd 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 are8d2;sfar4tgt ukmn ;+ 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.m /fuoo7t2bqkfc7,+rl, w *,(ojq vby 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 voltage across (tqf oy,cr f/7l 7wj,bo*,v+2qokubmthe 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 cur sf-w 1xh3k1ngt0e+yjrent through the 300 Ω resiss03nthy wx-1 jf1+ekgtor 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 chargnwf t(6*g jl*ied at 18.0 μC. What is the value of the power supply vof6 l t*nj*iwg(ltage 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 ekao*dd75okojv 5u+oc 7q-2w capacitors each with a capacitance of C are connected as shown in the following diagra7k5v aqo* d2oo5ew7 -oduc+jkm. 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 uncharlzaj kr( ct53-ged.
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 *9ssy0xw*afnthe 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 sjboz :7t7*a;qhpg3-e (vvr i yhown, 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 equilibrium, what is the magnitude-:n (fvs9zh0mg jrzpbu v:n sp+-jt62 of the potential difference across the capacito9vs:t z +2:uv fnr p6nbhjgj0-zs(m p-r?


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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 whzk 3/ i7ovlk*y-z7q are closed simultaneously. After equilibrium is established, whylvko7h73i *k/zw-z qat is the charge on the top plate of the 5 µF capacitor?


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