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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: 游客未登录  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 of8 kitpdqvxj0m k4 0-pz5+sks* 6.8 μA is used to charge a parallel plate capacitor at a rate of 8.4 vols8pk 5qjspd0zk*xik-tv + m 40ts 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)ihv 86h* q rdgp*zyn3, the unit for capacitance is written as which of the followinvqy *h d*3ngzp )i68hrg?

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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 ;yv.elp 7/owmu1 tcp0apart are charged by connecting them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As t1 vtwclpmo0;7y/.euphe 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 5(jtu ,b eo1ih:fben 7plates have a uniform electric field between them. The distance between the plates is increased. Which of the following statements is ,bbif7o (1t:jhneu 5etrue?
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. Thufq k nrctqx-,(k2) f,ey carry opposite chaf cq-u)2k(xrk n qt,f,rges Q and each has surface area 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 )8eru;k4rlon opposite electrical charges each with a magnitude of Q. The plates are separated by a distance d and each plate has an area A. 8)rurkoe n;4 lConsider 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 co9e/c 5uxr5z amnnected to a resistanceless circuit with a battery having emf E until the capacitor is fully chargedeuxc559 ma/rz . 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 to a battery. Withow l:gtte8fi nuo*xo.2d(p)k* ut 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 cap (2wo k): tgf**uxotlie8p .ndacitor 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 through thev2l9x-)iz)3ymf)kzcmsz r u ( 300 Ω resistor when the capacitor is fully charge 9) zy2)u)k x-(crizsz mflv3md?


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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 μF8a2zhm 2a :ffl*qf*tv capacitor is fully charged at 18.0 μC. What is the value of the power supply voltag2fl2tm8afv aq h:*z*f e 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 cym7x1nki 51* 1f(* -rdhfv irk8mqaggapacitance of C are connected as shown in the following diagram. rg(mrf*n y dvkkm75h xi gaqif-1181* What would be the total 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 ca2 jb +ecpxaz;pa/6l0apacitors 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 +d;gnvg10,aufbv9f2m. b eblinitially 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 0dbmj1uhd6 / yV, $R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . 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 k8uk+k3aqatc 97 2bszthe magnitude of the po8utzs 2a a3kqbk79k+ctential 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 capa(1tw7acu 4kjrcitor shown, both switches are closed simultaneously. After equilibrium is established, what is the charge on the top pla4jrwku (at17cte of the 5 µF capacitor?


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