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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 cuor: qh-v ;xmv;rrent of 6.8 μA is used to charge a parallel plate capacitor at a rate ovqho-m;:r ; xvf 8.4 volts 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 fundamenta :92p4lkah61k/ (acpyydx ts68waqaxugo1 1pl SI units in the MKS system, the unit for capacitance ix 9yk/2s1 up x1(a6co6w y4ldh1tk apa8a:pq gs 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 apart are charged bywfj .g)*izt(b connecting them to a battery of potential difference V. The battery is discongt.bw ifzj )(*nected, 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 unja7yr*l nbbc v.kn9+ brfo0 50iform electric field between them. The distance between the plates cv 9b0j0y+r*b5l7naob nf.rk 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 zfxhy qk4a*,*plates are separated by a distance d. They carry opposite chzfkh*xay q ,4*arges Q and each 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 opposite z ;6hsdrly0-l electrical charges each with a magnitude of Q. The plates are separated by a distance dhsy0;lz6dr l- 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 lpf*b;m8x :)/ xqvktma 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 capaq)fxmbx8kp *m ;ltv:/citor 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 cu*wawux3**v,l /e a aaonnected to a battery. Without disconnecting the capacitor, a student pulls the capacitor’s plates apart so that the plate separation doaau/a v3a lwxe**,*uwubles. As a result 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 accompanyifoc: r9p kt,z/ng figure. What is the current through the 300 Ω resistor when the capacitor is fully charge /fr,z9t:p okcd?


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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 fullyd *i0. o/tci h lpcpo9gx6)rb8l1uu3p charged at 18.0 μC. ix9olp u.8*r) tub3/dgi lpc o6p1ch0 What is 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 casfr:y wqx8g ll;0 *;; egod9ddpacitance of C are connected as shown in the following diagram. What would be the total equivalent capacg; drlyqdle* fo90s;:g 8;xdwitance 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 8 )f0b n1sgc3emm:vt qk9xp+b:nb4 wo9zz4jwthe capacitors 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 capacitors are(w9+a0u ezb6hyvcs y4 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 circurb5 +vctlp k40pcx0 z*rf)(fkit 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 circuit shown reaches equilibrium, w(r n31pcfcz2gd+pdr t9 bw49that is the magnitude of the potential difference across the capacitor?c9+n1przd( 2wtp9r tb34 cfgd


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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 showxpyqyp46 quj:e ;m8 *ip:e+hwn, both switches are closed simultaneously. After equilibriueqh 6*e :4xjmyp+;p 8qw:upyim is established, what is the charge on the top plate of the 5 µF capacitor?


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