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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 vect uxu;m8+1uq5ca.ddbhor?

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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 iskq6t: y(rn j*r 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 arb7-ri5jmx-1 )yxrjcagg 00l je insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. 7 cmla)-0ryxi0j jr jxg 5g-b1 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 direction of the electric fiel(i: 46q c,hw-xat8s/ vvsscw sd

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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 opposite to thi sb 74hxlikt )fm3u7g7l jn9vdx:8z9 e 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 )2,qyt r-1pzup0*sfe 4kdqbnon 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 to a speed v by a 500 Vu y6c g4cpnv tju ca1)f+/,m*a potential difference. If the potential difference is chamuav16u,c/j*y p)f a4 ctg+ncnged 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 atutgk6 hz 90imi2k alixw) t548l,b7lo 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 fromzw de7 9qnvlaoa41/i t (uz; jalcj/18 point A to point B along an equipotential surface.qel/9dt n( c1joaa8u1w ;/i4z 7vzlaj

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surb+f1ytovs*pzca2b 3z:c9 u* qface 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 charge equal to that on the e2np rsa2nbi/q sa 4k.4lectron as a result of movpr2a4inba kssn/q 4.2ing 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 a b8bj7k u .5ebuunit 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 correspondh/m*eqetl j w9 xe)ofgvzud(1 e:5,b0s 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 dista,.m 8+mv p-9/fy : qgj5j)picput4erc j,ywwbnce of 2.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 iepg ycjj: v)c,w.mfmp yq tw,-9bp+/jur458 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 from f.lq7p9pt2zkw glt;-a negative point charge is -100 V. What is the absolute potentia.wlt zf29p qgtklp;-7 l 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 ;fizd4uz c0uw52jkjnqc4p9j wp3 *k4when 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 tqcd04zk*4 uww9; 3kzf i2j5pj4 unjpc he 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 w*s3f9rwex cr 2hen a charge of +Q is located at one of the square's corners. What is the absolw3rcef2 s 9*rxute 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 l,p56rfxu.ekm(n- nbconsist 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)qw h ,d :rg393uvd kcjr-0enu 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 c as0 uu, bxuxl,v 4jcft*ih,,;c2yf) one has twice the,*c0tf;bc)ja,h , x ucvsxf24l,iuu y plate area 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 a-js dysar+;4o rea of the plates is doubled 4dsj;y+s ao-rand 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 g70nux6b,:qr yp wb:aand then is removed. The plates are immediately pulled apart. (With the battery disconnected, the amount of charge on the plates remains constant.) What happens to the potential d:n 76yq xrwpag0b:,u bifference 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 isfxp2e)h zic- v vsa3i y3 z,7cdc*c9c) weakened, the capacitance of )*c3xia p9ic c -c,7v2vhzd3 es)z yfcthat 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 voltag )-vrc,a vy(fre by a battery as they are pulled apart. During this process, the amount of chavyrfc -v)(r, arge 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 8cx4 m ,u2pliycapacitor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the electric field duriil8 2umy4,cpx ng 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 di lk/) :n4y2azmtimtl4 electric material between the plates of a capay:k tl )mizm4ln at4/2citor.
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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 the plates of a capac96z6xhjo:m jg itor. What happens to:j m6oh 69xgzj 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 between t:)tpru2;v wn/we -gs/sbi6mt he plates of a capacitor holding a fixed charge. What happens to the electric fiel 2 bw;w/ vr:tp/sinmsegt )-u6d 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 connected to a battery and becomes fully charg g)ycl+ham 3+z7cd(dh1lw: bged. Twc l)a(bgy+d7hm 13z+ d :gchlhe capacitor 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 capacitor holding a constant charge caunf l5af0*u0x3 hm: lbsht-dl-ses the energy s- tblmlula5 0*hn 03:h-dx ffstored 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 .04j jxs 8ww9sg f*urustored in that capacito 8gwfu jr04*s ju9.xwsr 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 move 10 C of chq p;n2 4yvz)rbarge from point A to point B. What is the poterybp ; v2qz4)nntial 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 the potential is - 0m gw ;nyo750y/qvvhr50 V, to po0y5;v oq/ 70wgvnhyrm 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, is accelerated through an electric p6 vqm8.y wsa(motential difference of 500 V. What is the kineti.(q8sm6vwy amc 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 p;8 *ptg0t 97-2hbkq1cogmlb ku s*ai potential difference of 500 V. What7g -gq1ti lap;mkkc2th0 bu9*p8 *osb 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 fal,: o2-yd,glt spmsw j9u*:fulls through a potential difference of 1200 V. Wha-o: jmp:ut,g fsul9*wd ,ls 2yt speed 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 9.0a)u,pd,lj5.t)bwtcnt v+9*im lv znh gf .s74 V do 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 diff4 oaqjxtv9 l*s6jot y; z9)n1herence of 500 V. What is the velocity of the electrtjt9o*z 4lq 1s)vnaj96 ;yhoxon 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 res 0jwd:vtlwa/lo53- uo t through a potential differen5two w:aouvdl3-lj/0ce, 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 the5sd*f d(gwu ,pg9 sgei--k0zajh/ ;x m electrical potential difference between two parallel *a9-pw-jdzkief 05; ugmg(,sshd /g xmetal plates separated 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 fiel .xv8jj d f:p*t8et3old, with a magnitude of 500 V/m, is directed parallel to the +x axis. If the polfdpxj.3j* ot t v88e:tential at x = 5.0 m is 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 towarr9bq;wef t4p5gnof876era a ;q3lc2 ad the east. If the voltage measured relative to ground at a given point is 80 V, what is the voltage at a point 1.5wra;grc a t8439nq2ba7pf feql;oe6 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 directionm x(, p8kp n8jjy4g/zh of an electric field of magnitude 3.0 V/m. What is the change in kinetic energy of the prot jknj, m88zg/4p(xyph on?

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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(r:5do2j0p +bziyr k 9r5ncd8cn; ybw 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 1.50y8 55rykp+ cobrdn;:rnwz i09 (cjb d2 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 1(7y5x )a.c imjr*jb dxd(h* vu2-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 a ur**j. 5v 7 b)hxxmj(d(cdiyfrom 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. ;de 1(3hml.ks0zorl (cy ma;t An elyrlohmtck (.d;l0( ze sam ;13ectron 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, 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 d0zt. rdz; eorblh./s-wylf h7c++ fg *irected 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 directy rzgfwtl;0z7l*+.hf ec- ohs .+ rd/bly 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 directeub9pp5y-6pk jyji ;*tw: c8awd 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 pointw-wkt jy*yp:6p;bpciju5a9 8 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 potential difference of 121u,p+k vaa5qmk*r 8: srak i agw(h5.m V, it will acquire a kin v5pg s:*r15mwaa+8 amrkh ,kkq.ia (uetic 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 distanb,q7 fapmh*g0uavn3 m 7kcf34 ce 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 the4 08lsz5hy/ anmzlh h; ends of a meter stick. Find the electrical potential for the center of the meter hm/slz0yh zal8h4;5 nstick.

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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: -1.oyq5)qhvbvtyc1dy8 gq*u,w l ql (3.0 m, 0). If the potential is taken t y- vtqcyq8 )qlqgu*b.5 1y,wdloh:v1o 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 ln c6x o y;,/w1nb:lxvm, 0). If the potential is taken to be zero at infinity, whvob6c ny1x; ,wln x:/lat 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 (3.0 m, 0). If the*w2xpq gz( 3tg potential is taken to be zero at infinity, what is the work required to bring a 1.0-nC charge from infg* ( tqgzp3w2xinity 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 ark3sr,gz:x)e g e placed at the 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 cm, ag),xs: krgz e3nd 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. Charge rgev h89l1s*fs of +4.0 mC are placed in two diagonally opposite corners. In the other two corners arh1 r8vgefsl* 9e placed charges of +3.0 mC and -3.0 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 qk 23// ldvzab:yeba+, 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 to place thkb:j /,p , jkoqty)9rxc.j8hyree charges, each of 2.0 mC, at the corners of an equilateral triangle of side 2.0jy ,jkc bqjkrh:toyp8)9 ,.x/ 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 3 3pjo,ej/rgia 2.0-mF capacitor when it is charged to 1033g ,oe pjji/r0 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 p3awq*m kv*ku+lates 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 v, h4a * 6oc5qa,2enbh cbcd9kfilled with air, and the plates are separated by 0.050 mm. If the capacitance is 17.3 pF, what is theke4 q *h5,6c a vho2dnc9babc, 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 ha- b ue.o3g(+wqog p1cos plates 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 ofr*gjk 8lrt u 9 ni.f,pr:8auv* 5.0 cm. If the potential difference between the plates is 2000 V, with the top plate at the higher potential, ui:un rlj89a8 p grk frv*t*.,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 acbj ypxu,7 rv -2yk-wy-ross a 100-V battery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielec7-kyb- j-,x2yuvpw r ytric 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 12;epl ftqe. 8p5 mF capacitor. How much energy is stored in the capalpe 8.qf;tpe2citor?

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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 3rc.b, se* n rm2h-fzcal(zrxu06gh6 stored in the capacitx zrr0*2.u eabc,g( -rl3h6mchsz 6 nfor?

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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 o, t3 hy+qg 7iz ncc-)dl)nh1bgnto the plates of a capacitor when it is connected to a 12.0-V battery. How much work was done in charging this capacitcgi1 z +h y7b n3ln-qc))gd,thor?

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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 i4 en-)j4jaazy1v qsj3t 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 capacitoda fk2ye309 3v (sdw9 ;bxbfjezk4u6kr 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 1v s gv4u wpf:qy ro97a,vx3s2of 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 of plates of arenh xrew*/*:7qsm eo k9a $1.5 \times 10^{-4} \; m^{2}$ 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 construgddj2+6 qb 8elecqa31 cted 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 capacitozj rfesl4+9m:r is constructed with plate 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 connei9swf p 3 cae1w5v3ui5ny c9m)cted to 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 t v3uf9wi5an )c5w3p iys1 e9cmhe 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 pc)q ,hukic q3p*+o n/connected to a 50-V battery and becomes fully charged. Thepqckq +i3*,h )/o ucpn 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 capacitor's plates after the slab is inserted?

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