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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 6kgs.zt eh :c3uw oe60is used to charge a parallel plate capacitor at a rate of 8.4 volts per second. What would be the capa0wts :36z ec.guho6ekcitance 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 MKSubl4cz 4;m ekfv3n(b-9im z-r system, the unit forzb u c -;-k(lmfm4bn4vrei9z 3 capacitance is written 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 ap 9k2i5mtjvrf0upq 2o /art are charged by connecting them to a battery of potential difference V. The bqu29tomr kvj /5f0i p2attery 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 fiwnq qx*hk3zp8m0i;nn (2c 6m qeld between them. The distance between the plates is increased. Which of8q z km*xqnm;nwq 0 36p(i2hnc 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 ca jug4k a,2d2x,tr4amy0/gi zxrry opposite charges Q and each has surface area A. Which of the following would increase the strength of the electric fielm 240dxr j2kyiu,txg/gza, 4a d 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 ch klu+hwjd .8mmt)1n*targes each with a magnitude of Q. The plates are separated by a distance d and each plate has an aru k8tm mn*1l.dht)j +wea 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 capacito; dns;6+l rm2pqrb4alas pcz ;che ):j6.qx*a r is connected to a resistanceless circuit with a battery having emf Ex qlpja;q.m sr4*2c;;a)d :p6ra hnebsl+6cz 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 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 capaci3v)lii b9zvrxgzj-wc2s:0uiqa,3n b n i/+6b tor 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 ng 3:zn,3r0u+ -bi bqlvziw6a9)vjbs/ 2 iicxresult of this action, 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 figure. What is the cnyer4h n l7ck- l.,v3et1 ma9hurrent through the 300 Ω resistor when the capacito 4-lvh,a7t3lme y.e hrk1nn9cr 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 chjnkitm8a.rc 8k52-f 3qgu p /warged at 18.0 μC. What is the value of the power supply vcn-p m/i8kj ur qat5f2. 38gkwoltage 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 withm+2o)fsi rfg.4nb n*q a capacitance of C are connected as shown in the following diagram. What would be the total equivalent capacitance of the circbso *ffr2n4+i) n.qg muit?


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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 can(t b,b1s k3 ilvg3kp8owiz p k8(:ov9pacitors 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 thev+7q. pk8tz ;xjciy, e 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 showw m;aw,bio5.r n, 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 g/rhf..sua/nqkg k92is the magnitude of the potential differencfsnkga./k . r2guh9/qe 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 capacit z1y :qxkwwh.0 qy sd311;3lrn+ zvc-ozixgo8or shown, both switches are closed simultaneously. After equilibrium ido;g8n:v-1 0 .qcz k+h3w1s oqxz3rzwyl iyx1s established, what is the charge on the top plate of the 5 µF capacitor?


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