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习题练习：Physics Unit17: Electric Potential
本习题练习来源于题库网 (https://tiku.one)，是在线习题练习的打印版，您也可以访问本平台网站(https://tiku.one/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 75 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://tiku.one/test75.html
 作者: admin  发布日期: 2022-08-15 14:49    总分: 75分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月15日 14:49  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  
  Which of the following is not a v po.mbwsgx)0ls1 djv z80c+rp,;w k )cector?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One joule per coulomtkn, 8oz 4bu 03vhd9mtb is a

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two identical aluminum objects are insulated from their surroundings. eru49 0ix),q- ktb 6web9bsut Object A has a net charge of excess electrons. Object B is grounded. Which object is at a highex utuks-), wt4ebq9i96b b r0er potential?

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a proton moving in the direction cq - 0c0mm g0*ieh xlc0;(4;rwjkj opjof the electric field

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For an electron moving in a dir(6dq ft5;lt bjns+c.jgl3g0u ection opposite to the electric field

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Several electrons are 9ra3(8uvp( n tij di6tplaced on a hollow conducting sphere. They

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A small charged ball is accelerated from rest todc ww4ut t*9jwd0d7l 5 a speed v by a 500 V potential difference. If the potential difference is changed to 2000 V, what wi wl7dt 4dwj c05w*d9utll the new speed of the ball be?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A surface on which all points ara/enr /v9l2ir69 hsy te at the same potential is referred to as

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A negative charge is moved kit z 9abi,h;2(zoh0yfrom point A to point B along an equipotential surface.,b02yh9oa ihz;k zt(i

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surface must be,*sb op ue(z3kill8c 9

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The energy acquired by a particle carrying a charge equal to that on the electrp7 6*q.*feywyl h5lyq on as a result of moving through a potential di7y 6h5wf*ypll. y qe*qfference of one volt is referred to as

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The electron-volt is75tp ndyufub s4nz.r0oa/ l14 a unit of

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One electron-volt coryei1fdb k 5q w5s9ji- b) pga6)j(rmk.responds to

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential at a distance ojop 955dp)ookf 2.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 m away from the same p k)55 9podpoojoint charge?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential at a distance of 2.0 m from a neg/dlghk,)o9i native point charge is -10lio,/ghk 9)dn0 V. What is the absolute potential 4.0 m away from the same point charge?

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential at the exact center of a square is 3.0 V when( h6doe65+j kui9p gqd a charge of +Q is located at one of the square's corners. What is the absolute potential at the square's center when each of the other corn d ehdjgq 5696oiu(pk+ers is also filled with a charge of +Q?

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential 0w pjj*g m+k36:qqcqu at the center of a square is 3.0 V when a charge of +Q is located at one of the square's corners.pmqj:q +g3wuq0*cj k6 What is the absolute potential at the square's center when a second
charge of -Q is placed at one of the remaining corners?

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Electric dipoles always consist oauef6 sitt1p8zg x3.;b .epm4f two charges that are

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One coulomb per volt i .:rg82m s: gcmgr63 wyeju9lps a

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel-plate capacitot8l k/v(e t7jors are identical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance l 78eov k(/ttjC, the larger one has capacitance

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has a capacitance jj2i:45ima pkof C. If the area of the plates is doubled and the distance between the plates is halved, what is the new capac i: p5kjjmia24itance?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A battery charges a parallel-plate capacitor fully and then is removed. The pl azcp1itvbc380owc( d;3d n)kates are immediately pulled apart. (With the battery disconnected, the amount of charge on the plates remains constant.) What happens to the potential difference between th dow i0czd8abctc )1 ;npkv(33e plates as they are being separated?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the electric field between t0or0.8c6)gww4lg i w4zjdvadwm 8ua-he plates of a given capacitor is weakened, the capacitance of that capacito 0cdj4d.o 8)m8w 4gwr6uwiw0lva az -gr

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The plates of a parallel-plate capacitor are maintained with constant voltag88x5ncrtsrz2j7s c (le byc(7s2zt 8c5 jnsr8xrl a battery as they are pulled apart. During this process, the amount of charge on the plates must

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The plates of a parallel-plate k/ihcj ue(j .)hudo99 xi:rh9capacitor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the electric field during 9 u.ko i:)9/ejd(jhhrcx9u hithis process?

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26#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State three reasons for adding a dielectric material nc+w7slha1d ;1vyaov(cq0 q8between the plates of a capacitor y dq1 v(8q0cvn7oa1scla h;+w.
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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A dielectric material such as paper is placed between theln(is d4,pb(f plates of a capacitor. What happens to the ci,n s( b4ld(fpapacitance?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A dielectric material such as paper is placed fov00hl:g2 ;mofy . rpbetween the plates of a capacitor holding a fixed charge. What happens to the electric field between the phr:2vpl y.f gm;0f0oo lates?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is connected to a bap 4mfq+ctzt.bd2u 6z. ttery and becomes fully charged. The capacitor is then disconnected, and the separation between the plates is increased in such p4zzq6t u.2.c+td bm fa way that no charge leaks off. The energy stored in this capacitor has

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the capacitance of a capacitor holding a constant charge causes tgqhxp2+js m.i av2y1dtk ,)l;he energy stored in that capacitor g ai2mv);1yx +.dl2k pqt,j shto

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the voltage akz bc5p8cjylxjsc5jbve f 2 wb50+0,* cross a given capacitor causes the energy stored in that capawv8b0by,c05e j2xj+l5zcj kp 5 f *bsccitor to

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  It takes 50 J of energy to jgyfio ).*v 5kmove 10 C of charge from point A to point B. What is the potential differenci jv.og5y)kf*e between points A and B?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The net work done in moving an egk*iy3oe w,xc./t 96y fild q5-w8 smslectron from point A, where the potential is -50 V, to po es ,- 8f 63wt9iscdkioymy.g5w/lx q*int B, where the potential is +50 V, is

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton, initially at rest, isec8l w bonqp+ 12 itlr5z/5f:t accelerated through an electric potential difference of 5005q1frt +lblwine: c5 o2p/t8z V. What is the kinetic energy of the proton?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton, initially at rest, is accelerated theoxkkma*b ;6() xiv *nrough an electric potential difference oavmneb( ;6*xk) ikox*f 500 V. What is the speed of the proton?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Starting from rest, a proton falls throqzf+ k -rtxrb,yug, 6/ugh a potential difference of 1200 V. What sbfryzxgu,tq, +6r- k/ peed does it acquire?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much work does 9.0 V do in mpg)p) efd6zf;rt;x4 j xj.fun- i6y 5hoving $8.5 \times 10^{18} \; electrons$?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A stationary electron is au*) .4y,hvsp fss eb6qe6-c lz86*lw 9gpldddccelerated through a potential difference of 500 V. What l6cge*.sqyppws-b6vhfd u49,edll) s d z86* is the velocity of the electron afterward?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-g object carries a charge of 20 mC. The object is accelerated from rest /9 7t x*)y z1z .3wpucltjnjqad.ow 7othrough a potential difference, and afterward theo uwzyon3wj1lxz9td t 7. c7p.aj)/ *q ball is moving at 2.0 m/s. What is the magnitude of the potential difference?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0-V battery maintains the electrical potential difference between two parayn* jpdeej x-y1s.yludc3+3 :llel metal plates separated by 1.0 mm. What is the eld-njy 3 ey1.lysj x:dcu+ *pe3ectric field between the plates?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A uniform electric field, with a magnitude of 500 dzbgk3vi)y 0w-03evl V/m, is directed parallel to the +x axis. If the potential at x = 5.0 m is 2500 V, what bvewv00 gi3)kdzly -3 is the potential at x = 2.0 m?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a uniform electric field of 50 N/C directed towa5)s 3ew n n 99;;nor xl-vn:e3smtjayxrd the east. If the voltage measured relative to ground at a given point is 80 V, what is the voltage at a point 1.0 m 5n sj9 ln e3aye9vonwsx-tx:) n; rm;3directly west of that point?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton moves 0.10 m along the direct*ros7c dnf )t4m9**pxb2cbm a ion of an electric field of magnitude 3.0 V/m. What is the change in kiner mp*dbn* *4msfaxtb)7 cc9o2tic energy of the proton?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel plates, separated by 0.20 m, are connected to a 12-V battebye:zg39z ,mn,2vs hbry. An electron released from rest at a location 0.10 m from the negativeh ,v3,gzn:eb9bsym2 z plate. When the electron arrives at a distance 1.50 m from the positive plate, what is the potential difference between the initial and final points?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel plates, separated by 0.20 m, are connected to a 12-V battery.,n(axyvmu ),)r jf7,3npu)oxvy e(v k An electron released from rest at a location 0.10 m from the negative plate. When the electron arrives at a distance 0.050 m from the positive plate, how much kinetic energy does the e,) ,fvjuy73mv )ey rx)v(p (ukx nao,nlectron gain?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel plates, separatzums nubv:qz;2mu ,n-8l2 ms+ed by 0.20 m, are connected to a 12-V battery. An electron released from 2qu +n2suuz: m-8 ;bzvm,mlsnrest at a location 0.10 m from the negative plate. When the electron arrives at a distance 0.050 m from the positive plate, what is the speed of the electron?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a uniform electric field of 50 N/C directed tod;tdky qy; ;(.bq/ah mward the east. If the voltage measured relative to ground at a given point in the field is 80 V, what is the voltage at a point 1.0 m directly east obqd(aq; tk/.y;dy h ;mf the point?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a uniform electric field of 50 N/C directed toi-ndq o8mx3h6ward the east. If the voltage measured r8 mqi3d6no-hx elative to ground at a given point in the field is 80 V, what is the voltage at a point 1.0 m directly south of that point?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a Cu2+ ion drops through z 0c a-8 +s:k3fjpqcrga potential difference of 12 V, it will acquire a kinetic energy -8a kf +p0zjc:3gc qrs(in the absence of friction) of

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential at a di715,-j zrru)tco,j8m7jdr ck uny+y a stance of $5.0 \times 10^{-10} \; m$ from a nucleus of charge +50e?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two 3.00-mC charges are at the ends of a meter stick. Find the i tkq*vm ,xfhk9c.fj5ta--7d electrical potential for the center o , dt*hqv5j7.mxa -kt9-kfifcf the meter stick.

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 5.0-nC charge is at (07d(f370jpttz5fp0h p5ru+kq l 3tzf)4cqhms , 0) and a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, whattq)kh4 zp5(ufr+ h zlffpd3t5m0c3jp77qs0t is the electric potential at point (0, 4.0 m)?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 5.0-nC charge is at (0, 0) and a -2.0-nCbioq7 re :ah10 charge is at (3.0 m, 0). If the potential is taken to be zero at iei :rob10 haq7nfinity, what is the electric potential energy of a 1.0-nC charge at point (0, 4.0 m)?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 5.0-nC charge is at (0, 0) and a -2.0-7- vq9odl1 ebgu*+cf7qft( dbnC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the work required to bring a 1.0-nC charge from infinity to p l1 f vfobdc7u7dqt9eq*g( -b+oint (0, 4.0 m)?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four charges of equal0sn2+a:au :df1 tj4xi lyi-zau g ,p*l charge +q are placed at the corners of a rectangle of sides a and b. What is the potential at -da+ja:2 :fil ,y04t 1*ugi xlsupa nzthe center of the rectangle if q = 2.0 mC, a = 3.0 cm, and b = 4.0 cm?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A square is 1.0 m on a side. Charges of +4.0 mC are place g0e2 tf2wlcz6 dbkjx(,z01rld in two diagonally opposite corners. In the other two corners are placed charges of +3.0 mC and -3.0 mC. What is the abr w ztxl0cfz,026ge1jlk d2(bsolute potential in the square's center?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle (charge +28yrkg ueb0zl4:/aj2. vih m 1be, mass $6.64 \times 10^{-27} \; kg$) moves head-on at a fixed gold nucleus (charge +79e). If the distance of closest approach is $2.0 \times 10^{-10} \; m$, what was the initial speed of the alpha particle?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is necessary v80l-ix;3jpj6 -b pfyfy q8erto place three charges, each of 2.0 mC, at the corners of an 6p-rfeyl8qjvxyfi038jbp-; equilateral triangle of side 2.0 cm?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What charge appears oxeok r 8kt9m4 ;:mrpussg i*85n the plates of a 2.0-mF capacitor when it is charged to 100 V?pkm x*5oi:rg4;8tsm9sk8ue r

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capao2 1n4n9+ z ur 4rfe:7mwhzy1mp(dcqkcitor has plates of area $0.50 \; m^{2}$ separated by a distance of 2.0 mm. What is this capacitor's capacitance?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is filled with air, and tha 2 hm)n4kiy-re plates are separated by 0.050 mm. If the capacitance is 17.3 pF, what k)hi2a ny-rm4 is the plate area?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has plat6 az*mw(qg1d* pdm tpfw4fg8 8es of area $0.20 \; m^{2}$ separated by a distance of 1.0 mm. What is the strength of the electric field between these plates when this capacitor is connected to a 6.0-V battery?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has a plate separation of 5.0 cm. If the potentlhxyax n;lfw-xqm/efhat+h9) +; *u +ial difference between the plates is 2000 V, with the top plate at the higher potential, what is the electric fieldmq;hhnw 9u aa/x++*xelf yh+ft )l;-x between the plates?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0-mF air capacitor is connected across a 13uy 7qb s+;*xn5eow2ym0mgfr2g0 qe t00-V battery. After the battery fullf2 q07y2t3w;n0myg*xgsu5rebom eq+y charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How much additional charge flows from the battery, which remained connected during the process?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A charge of 60 mC is placed on a 15 mF capacitor. How much energy is storedbs9w26 s7h+ulntn6l1ff4 n 82 hgeq wx in the caf6b xhg7hesnnq2w f 6 nt4+u81 sllw29pacitor?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  20 V is placed across a 15 mF cap1 sr)f;.we1r.wasf5k* h lhysacitor. What is the energy stored in the capacitorw* l1r.rysse15 .sfhh;a wkf )?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A charge of 2.00 mC flows onto the plates of a capacitor when it is8p i)wlg, sg.3) qggni connected to a 12.0-V.iq3in8l)ggp,) ggsw battery. How much work was done in charging this capacitor?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a 10-mF capacitor is charged so that it storetkijn,+cf/edx( vu 63s $2.0 \times 10^{-3} \; J$ of energy, what is the voltage across it?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor consists of plates of iy l,. . tbf i/ar6r6jguq/08c.hpq tbarea $1.5 \times 10^{-4} \; m^{2}$ and separated by 1.0 mm. The capacitor is connected to a 12-V battery. What is the capacitance?

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor nuw q4 fxzo.0axq-0+vconsists of plates of area $1.5 \times 10^{-4} \; m^{2}$ and separated by 1.0 mm. The capacitor is connected to a 12-V battery. What is the charge on the plates?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate caps; trgh97e qro,qyqks*1- s 2aacitor consists of plates of area $1.5 \times 10^{-4} \; m^{2}$ and separated by 1.0 mm. The capacitor is connected to a 12-V battery. What is the electric field between the plates?

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor i+ afvq0deb.qru;y9b5 s constructed with plate area of $0.40 \; m^{2}$ and a plate separation of 0.10 mm. How much charge is stored on it when it is charged to a potential difference of 12 V?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is constructed with plate a9t6a1u xby;oa rea of $0.40 \; m^{2}$ and a plate separation of 0.10 mm. How much energy is stored when it is charged to a potential difference of 12 V?

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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 15-mF capacitor is connected to a 50-V battery* e /k;*hk6cdwyc)rxr pe+(cu and becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. Iu ed+)crpc*wk6*xc ykr;/he ( f the dielectric has a dielectric constant of 5.0, what is the capacitance of the capacitor after the slab is inserted?

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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 15-mF capacitor is connected toyrgug hm)b4.m t8c+f5 a 50-V battery and becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the dielectric has a dielectric constant of 5.0, what is the voltage across the capacito4tmg8+. mcubrgh y )f5r's plates after the slab is inserted?

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