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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 usewi7o 0sa.ae0ac.ds afp t58:l d to charge a parallel plate capacitor at a rate of 8.4 volts per second. What would be the capacitance of the cap:i8e.5t.doa00ps a wf saa7cl acitor?

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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 systemdy q*/z.h.gj.iv h 5km, the unit for capacitance is written as which of the foq zkig j*.vhd.y.5hm/ llowing?

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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 :* oe g2(jo 0,/,pyu;yyxqh3zyhytio a distance d apart are charged by connecting them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As the distance x :iu,; yth ,o3yq y0hypo/ (ejg2oy*zbetween 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 e; hcsk)o2.s,c:c vs dinsulated plates have a uniform electric field between them. The distance between the plates is increasoc.s,cvcssk )2 hd;e:ed. 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 pla u07pq9qa;lue(-scelc:n:sj a mp(h5 tes are separated by a distance d. They carry5ph(qjc lu (ma;0: acpeens:7sul9- q opposite charges 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 opposite electrical charpuwx 2(s a *:1*toy uwr4ssck5ges each with a magnit1x(s*2stwp * o uuywkcra:54sude of Q. The plates are separated 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 resistanceless circlbj5r5q :fysp 7*-k vme6wh;ruit with a battery having emf E until the capacitoh w:s5- f5rp kb76m;vy *qrlejr 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 to a battery. Without disconnectcxs)8ea:a(z: hdtt 3ping 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 tht3edzspha)at x8 (: c:e 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 jmam+ts-il kl;6z p6on1a d0* current through the 300 Ω resistor when the capacitor is fully charged?-nalml106o6;smjitkzp a + *d


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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 capacip4:4uekyakvnk 9-7 c cy)+guttor is fully charged at 18.0 μC. What is the valu7cn: 9k+vuy)yctg-ekk4 ap 4ue 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 +mm x+u h*lwdydj t+qpa 9s2/n89-ztteach with a capacitance of C are connected as shown in the following diagram. What would be the total equivalent capacitance of the circu a+t 9lqu8*9nxttymwdj/h2s+ z pm-d+it?


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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 ar : p:boko3k776ep4 tdxs1fvugjca,mj*w)t0g e 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 initially unc oy8hbkvs.7jvnsgq wy8q - (;2harged.
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 y+ cmzv*b be-bha3loz i (p,uq ;/or;2V, $R_1=7.0Ω$, $R_2= 3.0Ω$ ,$R_3= 6.0Ω$ , $R_4=12.0Ω$ . 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 reig:c2h y; ,nl8b/mk *w zyxd/iaches equilibrium, what is the magnitude of the po*8h;/zxyk/,il: d2m ciwy gbntential 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 configuratiokamelc 5w.r-4k50edn n of capacitor shown, both switches are closed simultaneously. After equilibrium is established, what is the charge on the top plate of the 5 µF capem .lawk0 dnc-re55k4acitor?


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