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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 pari lr+xas 81)/gf-wo dju4e3vld/1n goallel plate capacitor at a r/dua ln g ) 13df8xlg1vo-eji+orsw4/ate of 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 fundamental SI units in the MKS system, the utnml1u/g cz35a s me89nit for capacitance is written as which of the ucl3m/n1t samg5e89z 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 chargewy8 4wi.rr w9kd by connecting them to a battery of potential differy4 kiw8 wr9r.wence 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 oppositely charged insulated plates have agshc+9aa c 6(0 ybmjl; uniform electric field between them. The distance between the plates is increased. Which of the following statements is true?0sb+ ;mhcj9( 6gcy ala
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. acc *zsyx3742sugvq: They carry opposite charges Q and each has surface area A. Which of the following would increase the strength of the electric field betweens 2 cyz v:x3q4sac*7gu 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 mqi4:1 m;nxkbbk7mesw ybq10-etal plates carry opposite electrical charges each with a magnitude of Q. The plates are separated by abwi;x:kqn 7y-m0 14kqmsbb e1 distance d 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 capace:4 :srhwomy*w yq ,*hitor is connected to a resistanceless circuit with a battery having emf E until the capacitor is fully charged. The battery is then disconnected from thwwhr:* s,*ye yh4q o:me 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 cop:8kmd0 a rp-nvyqr 2//mfk4m nnected 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 mkm 80dr4fy:pr2p/mk/aqnv -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 current)kljm: yhp/rk3leoa+ (.kl g); se m6l through the 300 Ω resistor when the capakj)gk) ae;m6r kl hs3lo/l + p.e:y(mlcitor 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 at 18.0 μinztr m0;;da 8C. What is the value of the power supply voltage m;8itn zd0ar ;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 capacit1 5pvtq bk)t3 ayeeq,3ors each with a capacitance of C are connected as shown in the following diagram. What would be the total equivalenttqbt3eq3)5,vy a pke1 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 cap3vj),yl 2 rycsacitors 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 inif bf( 3jqo /zn2uh.3tctially 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 3a b yt1u 62yjz4iliocz4mv5,, 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, what8 i7muz i(*a3ci mo.d ti,hkm, is the magnitude of the potential difference across the capacitozih c tkii ao m(mu,m87i*,3d.r?


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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 configuratioi )dp*:+4 f usygod9drn of capacitor shown, both switches are closed simultaneously. After equilibrium is established, what is the charge on the top p)rpd fd4y:uogid+* s9late of the 5 µF capacitor?


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