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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 cd+80g un ht* bn-ny/yzapacitor at a rate of 8.4 volts per second. What would be the capacitance of the capacitb8n d yg*n +-nh/t0zyuor?

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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 st 6p rmrw,(1kh, c9 xraaf56kceven fundamental SI units in the MKS system, the unit for capacitance is written ash6( kc1f c,prrwmkrxaa9t56 , 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 by co:k7a(q93jt,) j c7ro ndedu,mz ejg4pnnecting them to a battery of potential difference V. mzj(u) tpd47jeo, 7r,d3: qje9ak cgn 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 ha2 /flu.d e-bjnve a uniform electric field between them. The distance between the plates is increased. Which o-u jnebf2.dl/ f 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 are1vv 4s0rwo e6r 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 electric field between the p0v 6 srw1o4vrelates?
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 electr*f wn2 0p1s.epevu :s) w0s ylpj3upn:ly4 ti+ical charges each with a magnitude of Q. The plates are separp0 llw*1s+2pe4fws:. :euny) ypt3jus v 0inp ated by 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 connected to a res6nz1v0 asocu q .)xcc jii078mistanceless 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 a 1z.um n )a0 cscoiiv7j06cxq8re 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-plz of512bb a iou e2vj40;hv+ukyodofo9 ( u9w+ate capacitor is connected to a battery. Without disconnecting the capaci;4viuvoz( ed0b +bk 9o+au2uo2h159wjfo y fotor, 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 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 figur/id*4deuowi we q84d4e. What is the current through the 300 Ω resistor when tw*4i/dou d de q44ei8whe 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, thmo t9pst+-qej *r )ld2e 3.00 μF capacitor is fully charged at 18.0 μC. What is*-tmse2qlo)prtj +d9 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 capacitoruge, fqm . +9oxr91gufs each with a capacitance of C are connected as shown in the following diagram. What would be the total equiva, f+qgu91 x.u r9gefmolent 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 init52, 7khbbvi buially 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 ttc/p r-di 7*d*rfm 1qshe 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 a+ 6nqr9yg h:oshown, 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, what is the magnitude of ta avgm hr((t47yiv1e+jnqc 7, he potential difference across the cajiemq y vna( 7 71gv,ch4+rat(pacitor?


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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 config n.lbk4 ct*g(zuration of capacitor shown, both switches are closed simultanb .k*g4(zt lcneously. After equilibrium is established, what is the charge on the top plate of the 5 µF capacitor?


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