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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 h*8nbiv::oz/ o3 fyj mused to charge a parallel plate capacitor at a rate of 8.4 volts per second. What would be the capacitancbz:hf* :n m/vooy38i je 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 ye+xxy u5nl.md npri(7-hb+ 3 SI units in the MKS system, the unit for capacitance is written as which of the fe(yl- bmxu xp3+nd75nhr+i y. ollowing?

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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 b jkd5yit89z.m*je :dy y connecting them to a battery of potential difference V. The battery is disconnected, and the plates are slowly moved apart. As the distance beikj9 y e85y.mdjdz:* ttween 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 a un,4uk 4/egq/gpioo l/ riform electric field between them. The distance between thlq/ /4, u4 oge/pikgroe 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 48 9zysepspd::r) l+rp qici -are separated by a distance d. They carry opposits-i:r c)zps94di8:lpyp e rq +e 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 charges r x:w:5, cieemoxh( 4:ddxny+each with a magnitude of Q. The plates are separated by a distance d and each plate has an area A. Consider the following: ,oexxher4(xwi: m 5 ddn:y+c:
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 to2l/u-dtl0kg xmi7 o:g a resistanceless circuit with a battery having emf Ek2u:l /g- itx mld70go 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. 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 coniul52dkdppm1lp x2-4 nected 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 happens4d1p52 d upml-xk i2lp 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. 5*d xwvuq1 cw/What is the current through the 300 Ω resistor when the capacitor is fully cud/wx*cq5 vw1harged?


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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 u x:bc6,yq *hfa;1hpz3.00 μF capacitor is fully charged at 18.0 μC. What is the value of the: b6yhpf*qx; 1uah zc, 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 with a capa6h5y b7*gp z65x xjj ;)jcyicocitance of C are connected as shown in the following diagram. What 6zj; x)ycj*y 5hg6pjix75o cbwould 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 capacitors are initially unchajq6r7s 5 kov3jrged.
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 in) r 5 f b0mv7rw9g(nkgo)e7ksfitially 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 sn. ;fsjlrlkg ;.6+fmwhown, 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 1+q,mt o:kh mfis the magnitude of the potek1m+mft:,ho q ntial 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 conr98x tj :bvcrw j .vp0if3 s--h(lhcf fv*fw+*figuration of capacitor shown, both switches are closed simultaneously. -f0l3 v*j+ vb-*hcfw rpffrs(vc 9 x8hi:jt. w After equilibrium is established, what is the charge on the top plate of the 5 µF capacitor?


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