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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 pj 6pjj7)o ycw5arallel plate capacitor at a rate of 8.4 volts per second. What would bej jwco76yp)5j 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 fbbx r69sy4 y+) uue1rseven fundamental SI units in the MKS system, the unit for capacitance is written as which of tyur s6br)by+u x41e9 fhe 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 by connectinvu,c3l ck hz8;g them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As the distance between plates i ;lc,uhv8c 3kzncreases:

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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 cpj fmkb0o/dx z4po188 harged insulated plates have a uniform electric field between them. The distance between the plates is increased. Which of the kbjd8p x/8p fm0 1o4ozfollowing 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 paral t*,ju)-01pwjgjk zed lel plates are separated 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 jkeut zp1jwd*j -g 0),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 plmsl9 y8eih,jss0lb7lxgy-m 0 /vim16 9 t w9zmates carry opposite electrical charges each with a magnitude of Q. The plates are separated by a distance d and each plate has an area A. Consider yvmim m6w0z ,07 b1-l8islg hyst9e9 jxml9/sthe 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 conn )yompx5afy,u1xwog* )r 6)k rected to a resistanceless circuit with a battery having emf E uurxx1*5 yow6f))pk, ymor ag)ntil 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 capacitor is connected ct(b(lqh wx,,wsu e21; q;lm 5zxxt1m 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 capacitor and the energy stormwq1sc1 ,m5 ;;w(u(htbx qxzxe2 l ,lted 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 curre/jfly)v)2nrxg m)wi-nt through the 300 Ω resistor when the capacitor is fully yr) )gx 2/lwmnfi)-vj 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 cs)n+ tid b +5zurpzu:9harged at 18.0 μC. What is the value o uru+t :)is9n5 zp+bdzf 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 d2oyz(3g+ bq:c re7cua capacitance of C are connected as shown in the following diagram. What would be the total equivalent capacitance of the udy+ez:7qbc (rgc 3o2 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 vbtd:zn*s+rg79ihxuj r:h51 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 initia g+y: a(;pdg zynyxp(90v; wrqlly 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, 1( uwz8kqt1a.j c2 - +zw wrlc,ue1xaiξ =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 re.tmd*og)sqa c*dj: (waches equilibrium, what is the magnitude of the potential difference across(tqw gad*)c j* :oms.d 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 capaciqcrr p9d 0c*s+ ;ej2ertor shown, both switches are closed simultaneously. After equilibrium is established, what is the charge o +drprer;2e9jc s0*qcn the top plate of the 5 µF capacitor?


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