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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 vemf-31 hm1p9, rbeifcx ctor?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One joule per coulomb z40v4 ck myo*yis 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 insula zcj .:okyryw5gp.j/n v4-x+ kted from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at a higher. wjynkzj- px+g:r4vk/5 o.c y 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 of the elec/xz ,3n4wracf ) m)iuetric 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 di+jgd,ehms 8o2s :ha5rrection 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 placed on a hollotz )w+;wkmf/ x2 a01t,z abangw 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 to a speed v by a 500 V potentbv0 o p2drp:4nial difference. If the potentibv2d0 ro4pp:nal difference is changed to 2000 V, what will 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 are at the same potential is referred toanm xnp;-8w: iv*k7fo 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 from point A to point B along an equipotential sv jzlr ua7846/y4 vjmo pc*:sbmrc-0surface *pccs46vm4r0mr lo8-zs bv u/jy:7aj.

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surface m apahq+14xuw 7ust be

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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 g1k1jdqy v(tfs/ e- 2rthat on the electron as a result of moving through a potential difference of one volt is referred to asrf2q1yej1 t/( - skgdv

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The electron-volt is a uni8)um q;8wine d6v+imwt 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 correspongi umhp( 38 7i;*me+mcpkzh1 v0aq:zpds 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 of 2l) s1r/ i-92k ymuddtvd bs*j0.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 m away from the samevsr9* ddbld m-) 1u02ik /tyjs point 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 netg;nr9+n /k+o.mcgp o;u iqy5 gative point charge is -100 V. What is the absolute p.ogkrit;n;q5n9 mo+c/p guy +otential 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 a ch8gaf sz9+mdsxu0k+: darge of +Q is located at one of the square's corners. What is the absolute potential at the squa0 dsda 8+ zums9k:fxg+re's center when each of the other corners 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 at the center of a square is 3.0 V when a chargezan 9c vhn0:q8-y,y xo of +Q is located at one of the square's cnx,h: -v90y ony8qca zorners. 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 mcz 6 5kqn;wi,n1m,do(cla l9 consist of 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 volts 3 yp0d(9o ku(mog2je is 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 capacitors are identical in every respect except that one r -o,rl 0vft3khas twice the plate areavo, rr 0-f3ltk of the other. If the smaller capacitor has capacitance C, 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 of C. If the area of the p-exvk9v yg3 *clates is doubled and the distance between the plates is halved, whavxc 39ev*g-ky t is the new capacitance?

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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 zmxcgq3l*5b) .0ae pt is removed. The plates are immediately pulled apart. (With the battery disconnected, the amount of charge on the plates remains constant.) What happen.503pmecg aqxbz )lt*s to the potential difference between the 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 the plates of a given capacitor is weakened, taq3k(+ qf+m . o1xx uss(gxxa)he cuska x+am(x.qs(xof ) +q1 x3gapacitance of that capacitor

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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 voltage d; -amnd7im g*by a battery as they are pulled apart. During this process, the amount of charge;7ddng a im-*m 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 capacitor are mainum3j-8psq p/iv3v72qqx; zkgb7 g uc,tained with constant voltage by a battery as they are pulled apart. What happens to t2u 3bqs vm3p8vpiqg 7/7-ju,; g qkcxzhe strength of the electric field during this 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 between t0d t9nagfe,nr)mmzj in 5.q87w nz18vhe plates of a capac8)q17m8i ,r nfmjzt na 9zgnde0nv. 5witor.
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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 n:l gr zu,1n jya lj/7u.hi0-pthe plates of a capacitor. What happens to th, jupnlh jynai-r0/ u1:l7 .gze capacitance?

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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 between the plates ok1) (kl4/x t6/;xn kxfgabwshf a capacitor holding a fixed charge. What happens to txlhbs)fx(n 4t/a1; kx/wkg6khe electric field between the plates?

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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 connectex-eyrz6dphlea6d zx0c x 5ck4 c;,p7/ d to a battery and becomes fully charged. The cz/z6ck0plxdx 5 - dp4y; r76 xce,acehapacitor is then disconnected, and the separation between the plates is increased in such a 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 capacie/ -itkgrpi4-, p7nidtor holding a constant charge causes the energy stored in th,itrne7ipi dk 4p g--/at capacitor to

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the voltage across a given cappna.csjp t; .7zce -n2acitor causes the energy stored in that capac;npsna2.tj ccz 7.e -pitor 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 enerkf-b ba)la(21 qx c9kagy to move 10 C of charge from point A to point B. What is the potential differe)( ba2bkacxl -a1kf q9nce 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 electron from point A, where the potential is yuc.mgdc/ 33j/s d2bx -50 V, to pointcjmd// y2 .3ubdcxs3g 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, is accelerated through an electricodhw x 2s1/ ,fzhs04lsi qs,w8 potential differenco fq2i1/ 8sl0d4shwh ,xssz,w e of 500 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 through an electric potentix c/zig*k8gl.4r r7 tial difference of 500 V. What is the speed of the proton?r8k/. r i*tixlc7gzg4

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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 through :cujt u1tqf 7u6q1)p3 svkt9x a potential difference of 1200 V. What speed tu:6kvf x 1 qjts9qutup17)c3 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 4dfors/ vl9*ido in moving $8.5 \times 10^{18} \; electrons$?

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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 accelerated through a potential diffeq 9v7bmwd6 skn n.o nho1a47d2rence of 500 V. What is the velocity of the okhnm. b6 s qdn4d1o97va7n2w 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 chce. i :a7er1kh4;xv mxarge of 20 mC. The object is accelerated from rest through a potential difference, and afterward the ball is moving ah7 14;.: arm xkevcxeit 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 parall u6rc698fuqo nel metal plates separated by 1.0 mm. What is the eoc6r 8f9nu6 qulectric 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 a0h()er x5l- yciixxr3 magnitude of 500 V/m, is directed parallel to the +x axis. If the potential at x = 5.0 m isi)x5er-r( hxixc0yl 3 2500 V, what 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 toward the east. If i2aeuw5 p,4t if8uiq- i3kj s8the voltage measured relative to ground at a given point is 80 V, what is the voltage at a point 1.0 m directly p82j,iuu 5 e4kifi3qaiw8 t s-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 direction of an electric 4oq 1wniw4zl: ky .vwh,4iru,field of magnitude 3.0 V/m. What is the change in kinetic energyhq4u k4wy,4.v iwio lzwr: ,n1 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 bmgz,m7ng:bmc:u(d6c m 11 tyby 0.20 m, are connected to a 12-V battery. An electro:7 tg:bmnd1c,bm 6z1myu (g mcn released from rest at a location 0.10 m from the negative 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 batter.uz,/;lpw ukixo) . ary. An electron released from rest at a location 0.10 m from the negative plate. When the electron arrives at a dis ;p)k r.z,ul/oauixw.tance 0.050 m from the positive plate, how much kinetic energy does the electron 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, separated by 0.20 m, are connected to a 12-V battery. A)el5h/shws-wn*apv . n electron released from rest at a location 0.10 m from the negative plate. When th*e 5lsv ).s-nwh wahp/e 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 fi/iq8u/ui k6bsdrl (k3;ua 9oleld of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point in the field is 80 V, what is the uluaqb/k8r6/3us k o ii( ld9;voltage at a point 1.0 m directly east of 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 mhq1d19cc n illy+h0 7directed toward the east. If the voltage mea11nl cl0cy97 mhidqh+sured relative 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 a potedfxt/-brr n pq2 wq,-ufl8*4c.ftf x0ntial difference of 12 V, it will acquire a kinetic energy (in the absenceqrf n ,d0rb8w-qx- x f/cufpfl*.t2t4 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 disttg2:tfgy ylyv2 i*4ih-j )o-uance 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 aj. cgtb rvs n,m*b.t-4 a:q/prt the ends of a meter stick. Find the electrical poten*:rbag -p tc4/,q.nj smt.vbrtial for the center of 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 (0, 0) and a -2.0-nC charge is-rwb( ;nnhi nxx1:l.u at (3.0 m, 0). If the potential iub l;-1nx.inh(wxnr : s taken to be zero at infinity, what 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 ap*h7c 6+t *cp.+zt zgrnsbr2tt (0, 0) and a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potes6+p gt * pn +rrb7zt*c2thzc.ntial 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-nC charg6q.,eo+hqg iqv2x oi 7ij 6jz1e is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the work required to bring j2o ,qjive ighi6176x o+q.qz a 1.0-nC charge from infinity to point (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 equal c(ws y:t+uia 4lharge +q are placed at the corners of a rectangle of sides a and b. :u ial(+ywst4What is the potential at the 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. Charg01+ds up h guuwa:-.qtes of +4.0 mC are placed in two diagonally opposite corners. In the other two corners are placed charges of +3.0 mC and -3.0 mC. What is the absolute pote t:0-s pgdu h1a.u+uwqntial 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 +2wyol3.n fnc8qd-*:ryik;zgn+n u - *h e, 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 necesj j( t(nvwzdu1*.;u yssary to place three charges, each of 2.0 mC, at the cornern z;jj(*(uwyutv1 .sd s of an 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 on the plates of a 2.0-mF capacitor when it is charged to 10/,jgme:t5sv*)e l+m7og,xnl7fu l da0 V?:+x, el/f,u7g*mnvel j)gs ot al5m7d

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has plate, h jedacbwsq))g+0f(s 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 capac* w u+hn4-wa/ a*xdc7gr fdfyov5,a0ditor is filled with air, and the plates are separated by 0.050 mm. If the capacitance is+dw, fvuaawdg5x*0/ayf 4*h-rdon c 7 17.3 pF, what 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 plates yek) q w;u2f6lof 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 scvae-tse5j :jk03 29phni9 q2r ni -pa plate separation of 5.0 cm. If the potential difference between the plates is 2000 V, with the top plate at the higher potential, whatnj pie:rpit9hvjq-e09c 3a k5s-n s 22 is the electric field 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 100-V battery. After the batd1*wk9vo)wd mq1wb1uc qo rd) 6we /ri* .o8cetery fully charges the capacitor, the capacitor is immersed in transformer o8*r vcw9w/ud*q 1o eq16wkd. iwo ced))rb1moil (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. x3y8jiy +z *e5h zd+tyHow much energy is stored in the capa tyziyed+3h85 *x yjz+citor?

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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 capacitor. 1r no8p,d :,xfx.ak gv What is the energy stored in the capacitord,a. 8vr1 o :fnpxx,gk?

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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 is connej+0hmcyr ez wq beh(95-xg/a uh12d(ccted to a 12.0-V battery. How much work was done in charging this c2 jym(-+ 9u0cc 1h/eghxhwa(q5e b drzapacitor?

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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 charger*u3srn:lk 0pd so that it stores $2.0 \times 10^{-3} \; J$ 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 capafy q amxv/-+hu xgdr9a-l- 7.ocitor 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 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 consists of 0joxjw2b;t4bcf q n4dmkd 6 ,:0d;ptl 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 capacitor conesjdud ) crah5( tuu/i;.38m /gjc3*/wyk k slsists 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 is * ur3::ff ag:d 3olp /( hg3r8ucfleyqconstructed 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 area ofr7*d: kful*nicy *cv4h 7uy: q $0.40 \; m^{2}$ 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 batter/6rhg h-ht7ezy 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 capacitance of the capacitorh7 -hth eg6rz/ 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 to a 50-V batteryn8ezg7,4tpke 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 dielg,netp 87 e4zkectric has a dielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

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