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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 ,.n)jbf c4xee is not a vector?

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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 is z7lxjn 9+tie.fm uw10 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. hmg bg3 a /;8 gzc(3es;uc*0vsd*sr(uajbyr *Object A has a net charge of excess electrons. Object B is grcm3rjcd( h*(/0 ur* g;ysuab*8bsg3;avezs gounded. Which object is at a higher 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 direqiy5 a )qbs3)z1ey+ jpqup)u:ction of 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 direction oppositk5;ve*ou+dvn )msa 00*z wgene 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 hollow conducting sphere. c4nkt 7suwo4v r;nk7* )jrs5h 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 acceleraz f+x-h4c3/)h rwom tmted from rest to a speed v by a 500 V potential difference. If the potential difference is changed to 2000 V, what will the new speed of the ball 3f)xomt- + w 4z/hhcrmbe?

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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*ylirk93 0c v+/xrfcm 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 from point A to point B along an equipotential surf c89oq:z z+q+lbxbwqch*48 xxace.h++xlzbx *xb8qcqzow48q :c 9

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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 dxl)9;dha 7pu

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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 h c5gwm9 3bmeoc.7*dra charge equal to that on the electron as om5wrc e7bd cgm* 9.h3a result of moving through a potential difference 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 is av t,iuo3+wkc, e06),zdm wed z 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 correspolc e)/ tx-bx(unds 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 distance4tdzf w*7.ldu of 2.0 m from a positive point charge is 100 V. What is the abs*wud .l7z4ft dolute potential 4.0 m away from the same 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 ajnqfg x 8 jc+*bfe)t--t a distance of 2.0 m from a negative point charge is -100 V. What is the absolute po g-efj c8-xtj *qbnf+)tential 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 ce 0s( *x jryjn/ 4zkou29rey(hlnter of a square is 3.0 V when a charge of +Q is located at one of the square's corners. What is the absolute potential at the square's cel9 jxun0kerr 4(y h(zy*jos/2nter 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 charge of i-60 ckye9s lllrba;7 +Q is located at one of the square's corners. What is the absolute pote-c7 0k9ra6 ibl;sy lelntial 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 of two charges that59.h; uu1cor q-ouptr 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 i1 no2wlnh,c* p/0cev8 gg amy)s 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 everyrt+5n-b1 dit7m-4 gqk gz8lhc respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, the g t+-g-itzrkc 75n1lm84qdbh 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 ojxfc +j4-sed rw ose;b80fy3 y x;i0,af C. If the area of the plates is doubled and the distance between the plates is halved, what is the neyaj,sf+oi -03 48 fxw0ed;e;jyr sxbcw 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 is rcfa kk0 8dyv6ubjt+7z.2h .n eemoved. The plates are immediately pulled apart. (With the battery disconnected, the amount of charge on the plates remains constant.) What happens to the y bej027 6c8duv+h.n fk akt.zpotential 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 weao(/ f .cn s+c16dctn*8fx+anzscbn/ xkened, the c8 +otfz+*x6 dcnscxns.( /nb fac1 c/napacitance 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 witnhh*(qcyz5n5h c ro vf3 ce-h8 ,jy-x-h constant voltage by a battery 5ny( cq-r-h3vneho hjy5-fc , cz8xh* 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 capacitor are maintained wi(7v3co.aa p sgth constant voltage by aaa3 7gcv(.p so battery as they are pulled apart. What happens to the 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 thfzy4b,bi fnupe w3n6:6d;0g xe plates of a capac63 eifwnp,n 6yf: xzg0bdu;b 4itor.
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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 betwef8 d/gs1zo;cg, an vr0tp0a )qen the plates of a capacitor. ; g ,t80s10zacro)pan /gvfdq What happens to the 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 betweencf)y rt0zgcih m9;/0j the plates of a capacitor holding a fixed charge. What happens to the electric field bei/r00zc 9m cgj)htyf;tween 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 connected tk2yorc,7 nna5vfq (e3w(p) ido a battery and becomes fully charged. The capacitor is then disconnected, and the separat3 ao(ynnkf q)(5 vdiw7p,ce2rion 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 capacitor hold (xqxh 9ufv;d(ing a constant charge causes the energy stored in thath(;9(xfuqv xd 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 capacim ;ix0bjc8e;p:;ivm ytor causes the energy stored in that capacpjcx; e;; m:vyi8 mbi0itor 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 m ivfpqjs-r6-4uo d,p:ev- x4id; 1q bjove 10 C of charge from point A to point B. What is the potential difference be 4sqv;,ui p4dpf bijr:1 --d-v6ojeqxtween 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 ele c*i q l6 y+y)ufu9,(mo-dmzzyctron from point A, where the potential is -50 V, to point B, where theyc mqf6il,z(m *d+zyy-u o9u) 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 accetl :60/f,+tiplsw gxxlerated through an electric potential difference of 500 V. What itpf tg,xl0 w/:l+i xs6s 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 potential di/w 4 6i z07fx;gcfzcyafference of 500 V. What is tz 7wyc6cffigx ;4/0za he 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 thn(0*jlc smhr tp/ 2zs,3 ib-rsrough a potential difference of 1200 V. What speed does(r0iml pjb*t3s-2c,nzs/h rs 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 ppwczq )wuk f 5hl5lps9o u6e)/+he(7moving $8.5 \times 10^{18} \; electrons$?

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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 difference g)n5s- 2t 8ya1 hqrpggof 500 V. W2 ggn1y-5r)8ts ag pqhhat 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 f nlsvtb*gzjss); w84 7 xnsl92rom rest through a potential difference, and afterward the ball is moving at 2.0 m/s. What is tn8 lszsn*b l;s 9v7t)s2gwj 4xhe 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 betwki2z,7 fizt-)mod7w;s1rky heen two parallel metal plates separated by 1.0 mm. zy7kh i;d)7i2t-1k ,fmz wrso What is the electric 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 ufbh*d7q 1l3w magnitude of 500 V/m, is directed parallel to the +x axis. If the potential at x = 5.0 m is 2hbd3 1f 7u*qwl500 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 Nb/, gd ycxxo8ozexa p q8+*+5w/C directed toward the east. If the voltage me5pw8 cx 8 a*od,g xq+xez+b/yoasured relative to ground at a given point is 80 V, what is the voltage at a point 1.0 m directly 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 directic. (lpd(p5 alion of an electric field of magnitude 3.0 V/mdpl 5lpca(. i(. What is the change in kinetic 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 byu msk; * j 17bev .mzklzrq(j;oho362y 0.20 m, are connected to a 12-V battery. An electron 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 pot*j; eq(k;vkbmuhlj3or oz.6 y7s 2z1mential 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 +wuxp lnlk)ds3 80lg6m, are connected to a 12-V battery. An electron released from rest at a location w8lux0 k)+ dpnsl gl360.10 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 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, s.6 n rqgldlk..eparated by 0.20 m, are connected to a 12-V battery. 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 posit k6 ..drgl.nlqive 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 s2 d wfpl/+ b1fvtw8/ nsp-x;nzxdn-350 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 voltage at a point 1.0 m directly eas1/l2vsn zw+d/w--xnt bf ;38 np pfxsdt 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 e ei2q u-nb3fwn 6v2w+s3+aei rlectric field 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 voltage at a point 1.0 m directly south of thsvuq-3n2+6+ie win f abe3rw2 at 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 potential difference of uw t73ed9z 0sd12 V, it will acquire a kinetic energy (in the absence 0d39s tu ezd7wof 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 aeyeyx7gdxp/wf0p k 9ng6*hk *526yos distance 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 ends0*i/tdb8nifx2n97 7cngv b r r of a meter stick. Find the electrical potential for the cent9t7inrb xb2v fn/icdnr08 *7 ger 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 at (3wlhz-jt6wauud. 85o,sxi w3 3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potential at poi zx6ohas-d3. uw8lw,t 5i3uw jnt (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) a/6ck mun zwq-xszh71/ nd a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at/1n7ux- 6zs cqmh/zw k infinity, 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-nC charge is at (3siq66bynxq)* os/u 31fnt xf/ .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 infinitbyfnn63/xu 6xo) i/ts *s fqq1y 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 charge +q are placed at the corners of a rectangle of s1cebp 1q3 zpm)yvh/w6w a: e:3qdpgm ,ides a and b. What is the potential at the center of the rectangle if q =h,y cbg dwza qw)6:331:/mqppp1ee mv 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 pla(066kp of hs + (rmih1))sqxbhowfs:/p8q xdiced in two diagonally opposite corners. In the other two corners are placed charges of +3.0 mC and -3.0 mC. What is the0 sxsfw kio)h h):hmo1q/bp6xf+psq(6(d r 8 i absolute 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 +2e, madedc1()2u(no du(m iiss $6.64 \times 10^{-27} \; kg$) 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 to place three charges, each of 2.0 7a6 7 wmbqr glm,b)h47az;yhd mC, at the corners of an equilateral triab7qz7mrhlahd;)g7 myb64 a ,wngle 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 itzsi2gp6s+w)xxj t ,h) is charged to 100 h)ig+x)x 6t2, zwjpssV?

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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 plates of 9ypm 61 wyl)ysarea $0.50 \; m^{2}$ 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 e2li (v;vh 4ooair, and the plates are separated by 0.050 m4l v (;eiohvo2m. If the capacitance is 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 di o2va6 5,yn) w)x0pp3d xwxbplates 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 ofl9t0pl caal:hmm2;t4 5.0 cm. If the potential difference between the plates is 2000 V, with the toplcp:4talm;9atm02 hl plate at the higher potential, what 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. Aftepz/o- p*zgv. zr the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How much additional charge flo ppo/zz.-z*v gws 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 capaci(73ll77y n mzs 8bqtvqtor. How much energy is stored in the capacitnv8ty73 7 qlb(q7 zlmsor?

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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. What is the energy xt7:h4d:+uhpv)n mec stored in the capacixh4n +d c )e7mhpu:t:vtor?

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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 connevn wf/vz cez5((9 h4ftcted to a 12.0-V b(tn c(e49v/h5 wzfzf vattery. 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 thats*py8vdn q)j ywxh1f2+ qkg z7uk;-p+ 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 capacitor consists of plhly/fu((-8 vr eky8lxc-k lg1h1 qzi-ates 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 cohp)bf n:g p;z;nsists 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 capacitor consists s7mmds 2 y /f )*lty363lmvp cko/sh1fqy9dc+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 capacipnl;1t/ .ik botor is 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 jibnlt+(;qbc ,le + 3iplate area 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 battewh a6rx)bb1k 2ry 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 capa hb1kba)xr6 w2citor 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 battery and be0+1x m7r i /h1bltlwtecomes fully charged. The battery is removed and a slab of dielectric that completely fills the sw1mt rle+i hxtb1/7 0lpace between the plates is inserted. If the dielectric 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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