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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( l0y syzs/s1 08 p11t ft3bc2busrmit 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 ug 1n c0ctqm,lto 2i0;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 surro+4hpqcce i7gyib;; x -undings. Object A has a net charge of excess electrons. Object B is grounded. Which objectcqyii;x4ge7 c;p -b+h 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 did.ia. p5ggv;orection 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 direct: x+dv0psb -tr(a ei7aion 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 hollow cr+p4.vfc v0ohyxy e/-onducting 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 tofk. e;;ocp(t bq9,5loo/rou o a speed v by a 500 V potential difference. If the potential difference is changed;rtl.; k(qobco 5/p 9 ofeuo,o 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 e4(iieb tz4/;3da xe gare 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 8nygu cw )lb9rm+laa7rd t11wwmt, ;w(9 ua+kmoved from point A to point B along an equipotential surfac+wk( la gulac tmnm99)w1+dba 8w,rwy7rtu1 ;e.

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surface bb;8w4/hdgin:mqi n ft/- 3ad must 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 charrk0tb, (bf/kw ge equal to that on the electron as a result of moving through a potential difference of one volt is referred to f0/wk, kbt (bras

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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 amgw/hn(d4)8wj bw m9 w 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 corresponds p.+sra: jxr2gm4 xbn3to

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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 2.0 m from a positive point chag xepm 9b8,md68 8(gsq)u zcycrge is 100 Vg8m 8( ybqp6u8z x, e)cgmsdc9. What is the absolute 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 at a distance of 2.0 m f4i/ue .pnmv 4urom a negative point charge is -100 V. What is the absolute pote vui np4um.4/ential 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+l*f*.laeoyn.i vi .;grmd (u a charge of +Q is located at one of the square's corners. What is the absolute potentia+il.mdye aoi.nvu*. r; f*lg(l at the square'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 gbndx+3l,2 uw r6bk0:f oxc0sa 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 tg6sb 20 bxoundfk:xrw, l3c0 +he 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 coqm 7;psp1 c)lwnsist 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 volt is (s qhkg3mb2vp6nfd** 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 respexwgdja()s,b:*s- nq dct except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, the large *:wjndxa)d(-g,bqs sr 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 d2uh,9i i jl 7yx7sske)6dmp/the plates is doubled ands,/7y9hpl6x)2 je u ksd iid7m the distance between the plates is halved, what 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 is removei.f,l .yxi ji;d. The plates are immediately pulled apart. (With the battery iiif;, ..yxljdisconnected, the amount of charge on the plates remains constant.) What happens 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 cm9ux*ar/ ,ut weakened, the capacixr m,a/u u*c9ttance 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 cben* bsyj /u x.,3dr*wonstant voltage by a battery as they are pulled apart. Dxy3n**eb,./ ru s wdjburing 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 with constant voltagod:*g /vh7x-u*k5za5qk 9dm b k:vcaqe by a battery as they ako ah*dgq bxk-5k5z:mc vv79ua/d *q:re 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 the pla8 o)j2skshxn0 tes of a cap )sxj2o8 s0nhkacitor.
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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 azibf885m n4x/qj 7dz, hxrxc7 s paper is placed between the plates of a capacitor. What happensjxq/z78i,f 7n rhx5x 4mzbcd8 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 betwemgxzusrvn)7g0d;g )5w7/u *ypc9 kim en the plates of a capacitor holding a fixed charge. What happens to ths*czm kurg 0gw)u5gv d y)x p;7m/in79e 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 coyfzxlqf1/n- -lm ,j* fnnected to a battery and becomes fully charged. The capacitor is then disconnec /fq-l zf f*m1-xln,yjted, 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 capacitor holding a constant charge cat a2um .och-r6noi5 fu b nif*15f:4ezuses the energy storrn fb i* 5 ui5u. te-zhfn2ofcm4:6o1aed in that 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 capacitor causes the energy stored i.h2zeeic-*kd:7 cplqn that capacitor thl* :ccd.q7ei-2kpze o

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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 move 10 C of charee(c:2lzmzn , ge from point A to point B. What is the pot , zem(cn:lze2ential difference 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(grv4l vg rm38 the potential is -50 V, to point B, where the pog4lgv(r38 r mvtential 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, icf.xv6,vnc4k sv cx11jr n3f,s accelerated through an electric potential difference of 500 V. What is the k6.v, ck341sccf x,vv xnn1frj inetic 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 potentia-z(d6 a ukxn*7nm qpl(l differel-nnmz d q6pau7((kx* nce of 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 through a potential difttu1o4 m;bav6r,x1k .ax)t itference of 1200 V. What speed does it acqui4; .at,axttmv6 r tkbi xu)o11re?

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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:vuh 3c+1 iyc+-fyl3nlaj ojlte:,e3 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 a3+z pq8*vp8st xz:4s-h:ar c)dl e xrg potential difference of 500 V. What is the velovz srd-rgzs xl8c:xe:)ht48*q+ pp3 acity 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 objectn t8 l1.c.ui1u j8*x2x x1ld4 e,vjzjppm zc)e is accelerated from rest through a potential differencx1.)j8 i, 1xuc.pxzutd*pj 4e 8jel1zmvl nc2 e, and afterward the 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 differenl(vl7*kd:bm *geq h c1ce between two parallel metal plates s(lebl * *1h v7kqg:dcmeparated by 1.0 mm. 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 magnitude of 500 V/m, is direccgpu, j)u. n;lted parallel to the +x axis. If the potential at x = 5.0 m is 2500 V, what is the potential at cu lup,gj)n ;.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 electrg:cued9 zg0z/ .p1gmvic field of 50 N/C directed toward 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 directly west of t/zmge:zggc9vd0. 1uphat 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 field of magnitude 3.v(zt82b4 d3p5ble9ip.dtf +z ynqpz 10 V/m. What is the change in kinetic energy of the proton?2p+4qe.dt 1pdl (9t85nzb y 3zvfp ibz

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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 3nb0x nsqu7p mlw;7-*hce *2 ovlh2fjby 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 270sl up n7vfm3 o-hx*bnj;*ql 2wheca 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 t9wa/c3 klm 0u 3l.ilrzo 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 distanc mw/.kiral3z ul9c3 l0e 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 f2r17qgg y6ps1nd*oa -avi6ia 12-V battery. An electron released from rest at a location 0.10 m from the negative plate. When th-2vria7i dsg1 1afyogn6 qp*6e 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 e5g5fgqkf .sq9pq; f9pi .ta. N/C directed toward the east. If the voltage measured relative to ground at a given point g59kfsqg.qtf5i pe9q ..a;pfin the field is 80 V, what is the 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 e,k6.w9*8aigu upo3 cudnsinm kvau , ,c /w1o-lectric 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 o1gcukuvnd9,8-wu*, u c/.,m i aiks6 pnw3oathat 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 potenp,/94gsapnz0t:jj d l tial difference of 12 V, it will acquire a kin0 j nag,d4:sz9ptp /jletic energy (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 dis m7v j9q1) mxll7/1edp vw .wf1jgx)ektance 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 stic te ma,9fk,t4/p gcj.fk. Find the electrical potential for the center of the meter stic4,tegjf9.fmc , k pta/k.

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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 arbap*0 fjk)e;xs* ,tn t (0, 0) and a -2.0-nC charge is at (3.0 m, 0). If the potentialtar fj be,)p n*;skx0* is 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 at (0, 0) and a -2.0-nC charge is at (3.0 m, 0). )6apjbxo ku9 a 3qnm5-t97cq zb0)d qn If the potential is taken to be zero at infinity, what is the electric potential energy of a 1.0-nC charge at point (0, 4.0 m9695o)n u a qzptbk)0dm3 jqc -a7bnxq)?

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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 fv5wzh+ 97uqt(0, 0) and a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be u7 59z+qvwt fhzero at infinity, what is the work required to bring 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 charge +q are placed at thgrq4 ntson0,* eh 1zd6e corners of a rectangle of sides a and b. What is the potential at the center of the rectangle if q = 2.0 mC, a = 3.0 46nn 1d 0*zqhs, otregcm, 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(a4nvh0zar;l )bvywr,h 1tw ,.0 mC are placed in two diagonally opposite corners. In the other two corners are placed charges of +3.0 mC and -3 4(,,hywzal01 rtbwra) vvn ;h.0 mC. What is the 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, massb giygd4*wp.w38axgx zhe 5vc7 ev*l;lv,j+ . $6.64 \times 10^{-27} \; kg$) 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 2gesmcj 7x(/iwueuj w9*34 o+jk 1 5iov.0 mC, at the corners of an equilateral triangles1 eux(o ei wckujmwo57g vj/*3+ij49 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 taocvk g2 kf: lbf)+)/yhe plates of a 2.0-mF capacitor when it is charged to 100 vylkkcf2+a:g )bo/ )f V?

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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 afxr914r csu-x+a o 4aplates 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 the p7gqm zuhw2nz. p8h 5bwp/, l5plates are separated by 0.050 mm. If 5 p8,zlpm wzhug/pq hbn 572.wthe 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 plau .vajje7p ;0ob-g -sv / 3bqsq-)cvdgtes 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 55 rjnupq:i,p :eccg t*q+k7s+.0 cm. If the potential difference between the plates is 2000 V, with the top plate at the higher potential, what is,p+qk5tcr+pi e n: g*cuj :q7s 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 batwiw1w : w j-urra;iie.n)p3-y tery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How muchr ynwjpiri w1 u) iw--:w3.a;e 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* lt;w+tu iy 4 zsghh1tv60 kiyl.*hm- 15 mF capacitor. How much energy is stored in th lvyi0whhs6 ;t *yithu +l*1m-tzkg4.e capacitor?

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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 j. 4dc4wa/kcioi4k zm:1 +rgf capacitor. What is the energy stored in the capacito1zmij.kdcw44+o / iakrg 4:cfr?

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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 ont.lbh g 4hr*79 dtg d(osg,yt9io the plates of a capacitor when it is connected to a 12.0-V battery. How much wh4dglt. h( 9bgys rdi7g9 ,o*tork 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 ch ok*+3aq(-y0,n i uhanaqzv.r arged 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 capacit,w 7(s num.aef4m ax2eor 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 plates of aremv0khli 0o -,k7wzgp-a $1.5 \times 10^{-4} \; m^{2}$ 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 of plates oot1)y sn.p n6cr*za (af 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 constructed with pla+:gd z z)6j n5ggwvj4. hsnp:ate 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 platwcvybms uk 6l1m0 c j;e(-f8hxe1y4(ji*t(cs e 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 battery and becomes fully chaouvm7bbx :-o3*iwqy qub .zf5*: 7 twal.y e-prged. 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 cyz t 7: v 5p73 .y:bbqaqoixuf bmwelo**-.wu-apacitance 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 to a 50-V battery and becomes fully cha-o.5poctwmwd7 0u .mq rged. The battery is removed and a slab of dielectric that completely fiqoc t5d70o mpw wu..-mlls the space 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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