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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 capac h k3dl)9t6p31ko:bzlc)c 8bsp cl6r eitor at a rate of 8.4 volts per sl)c96b3es pcorzkh tp68dl1 c 3:)lkb econd. 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 MKld/ +ojogju- * ded-2aS system, the unit for capacitance is written as which of the fe dojl* d /a2dujgo+--ollowing?

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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 dis6onr)bpi .mai)effb ;my(q: /tance d apart are charged by connecting them to a rbf)(/m6 yf.aoiinp): e ;mbq 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 opplxp.cwfjs0) e3s-/lu zbig kw2r;j 55ositely charged insulated plates have a uniform electric field between them. The distance between the plates is r lwwc2 xip .-slzu)sg 5fjb3j/;k50eincreased. 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 a distance d. They wsqfb;mz30d; c kxf.5td az6-jybf, 0t iwf3/ carry opposite charges Q and each has surface area A. Which of the following would increase the strength of the.fbja3wff x0 y/6fz3z;tq w0,cki-db5s t;md 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 e6xkc t 2 wwmi8w7yr95each with a magnitude of Q. The plates are separated by a distance d and mikwx 7c86twy9wre2 5each 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 resih1t-aj5b7 84hhn fzjd stanceless 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 are moved to half of their original separa48nh5hzatd fb71j hj-tion 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 connap4+5jz (aruu;xs0o fected 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 voltage joaafs;pr 0(z4+ ux5u 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 accomt3o lur1f(: j 2k ;;qbxtxo9rupanying figure. What is the current through the 300 Ω resistor when the capacitor is fully:t(q9213 ;fu ob;jrltx uoxrk 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 c2 g+;z ww)fo2ns,+vv w9wp hrcevmm 91apacitor is fully charged at 18.0 μC. What +o mzrv+ hc)w;1nw229vw v,wep g9smfis 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 capacitance - l6 rzrgnlkr:5deu5-q ftf3/sc35qu of C are connected as shown in the following diagram. What would be trr5l56:3q-/suzc f35 n-kf edqur lg 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 uncharged.l(l;fujsfd *i8h y*8x
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 zg59 -n:i gllb 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 =6.0 V,te4ilp)5p w rq mws(soz 1phb5609h 0x $R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . 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 of k1nc 2nl4j2xb p xd,l,the bnx 21p4 k,2jld xlc,npotential difference 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 caaqtvse.k 3;zkzs9a 1 7bgh*-zpacitor shown, both switches are closed simultaneously. After equilibrium is establishzqkezt;3ha zk*s 1.g7 -sab9ved, what is the charge on the top plate of the 5 µF capacitor?


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