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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 charg3h( *l+axoxelgjvv 562x.hlg e a parallel plate capacitor at a rate of 8.4 volts per second. What would be the capacitancev.*l h(e6hlv5lx gxx jg a+o32 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 MKdxft x+twt js 61+bz1/S system, the unit for capacitance is written as which ojtsx/ 1tft b1zxdw++ 6f 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 paralleb-6v66 v htyd1etoyx 9l plates a distance d apart are charged by connecting them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As the distance between p6yvhob v19tyte 6-6dxlates 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 insulaulcyt*f6 nak0 hvk 7hk(2s0a)ted plates have a uniform electric field between them. The distance between the plates is increased. f h y)kh2c6lat*s7uv(na k0k0 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 separr(8zc, )t y v3zkpprb6ated by a distance d. They carry opposite charges Q and each has surface area A. Which of the following wouc3pt, 8)zzbvr p(6kyrld 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 k:fn9n. ledtq y5/ivvw xa;- 9metal plates carry opposite electrical charges each with a magnitude of Q. The plates are separated by a distance d and each plate yl qdxtvnfa/59-.9 new ik: v;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 connectsaa tzb7 czcr (-gbf m4,1h.-yr jj3e5ed 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 3yz,jh517jefa btr--( amc4gbc.szrof 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 connected 2b2x hss5g ,w5pr(0ff mzj3o/k gqr/f)mdtk4 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 across the capacikgf, bkz/2s rf h4m)stqp(5mdrf2g /jox30w5 tor 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. rvfdd8. yw (qcxyg2 va.f.,b6What is the current through the 300 Ω red( x6c.vdyqvfrywab.f .g82, sistor 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 z0k gqgi zz gg9az)ib6z+1c +-at 18.0 μC. What icb )agz+g+-k g6zzzig9 0q1 zis 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 capacmj a y /26vgr42isl *oq6x5nurop ev*-itance of C are connected as shown in the following diagram. What would be the total evrn4pim /qjer v* 2xasoyu -5g62o*6lquivalent 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 p* :4ojr4anol f3rj /-y:d(zn8m kxoecapacitors 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 i7ckc9mc tl9tk;uw2n 3nitially 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, )(i/r-fgbqppkk 3dz ; $R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . 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 shoi g+d6uii;9aepnzc- ;wn reaches equilibrium, what is the magnitude of the potential diffe p6c;iei-zni9g+;d a urence 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 0fhlc;xbwy (bd)c( .z of capacitor shown, both switches are closed simultaneouslyl0 ()w;czc (xfybdh. b. After equilibrium is established, what is the charge on the top plate of the 5 µF capacitor?


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