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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 parallel plate kxhm1zjw m941capacitor at a rate of 8.4 volts per second. What would be the cmz w1xkjh m914apacitance 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 unixa o8qya.7kz; ts in the MKS system, the unit for capacitance is written as which of the follxaa 8yo.z7;kqowing?

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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 distan:cx8ouu +*hn4l /t, bgj b)tzvce d apart are charged by connecting them to a battery of potential difference V. The battery is*t )+uv obujhz4t /cxg: n8,lb 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 insuq1y niv82;abm lated plates have a uniform electric field between v8ib; qam2 yn1them. The distance between the plates 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 plates are sepa 7klu/;f*k tm0z zmpa(rated by a distance d. They carry opposite charges Q and each has surface area(z ;/zm*pa uf7lkk0tm 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 electrical chahyfp. ea2)te4 y de;q/e d0q9+ buon,mrges each with a magnitude of Q. The plates are separated e dnp oa9de e),yb+ .fh u/t0ey42mq;qby a 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 capacitor is hs;y2 k 4rflyoh(0d;c q(f-joconnected 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 of the capacitor are moved to half of their original separation using insulated gloves. Le l(4;dy0sffy(2c-jrhoho ;kq t $V_new$ 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 to a battery. Withopbv 1) j(jr+x:qwu5j9mk-..q gf sj ksut disconnecting the capacitor, a student pulls the capacitor’s plates apart so thk (9jmwpu.rj:k+fbsg x s.vq1jq-5)jat the plate separation doubles. 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 accompanying figure. What is thei pwec85trc-w s2l :t) current through the 300 Ω resistor:pw 8ie-)s2t ctwcl5 r 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 charge eoi.yz9m9d-d+vzq, b d at 18.0 μC. Whayo d-mbvd.+9z9qie z,t 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 withmw(a*jvgc. o2z* 6iy o a capacitance of C are connected as shown in the following diagram. What would be the totali2(zojg6*cv y m*aow. equivalent 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 capacitors are initiall7zldjm 0a t6sj5b: z8oy 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 th:1- fxmlvsao( 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 shown, w+n0rhs 81c yf ;7jxmgξ =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 fe*nvzv xrtxr( 8y2j0 9xa- : 30dfcwdequilibrium, what is the magnitude of the pote- f9n3dxdc yvvxr8:e0w0 aztxjr(* f2ntial difference 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 capacitor shown, both 1oi745 vbtx49h:uhuh+daio i switches are closed simultaneously. After equilibrium dvx+ia7ub ii4:ht 95u1ooh4his established, what is the charge on the top plate of the 5 µF capacitor?


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