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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 .s p w9j),azuf z*bz. r4)eyaea 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 f;j7u5 zzusxfodw :xqz p108jo w+k2lqi9/c2 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 the+46 o htyg6vymir surroundings. Object A has a net charge of excess electrons. Objemy4 gohvy+ t66ct B is grounded. 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 in7:fbs /e (eozw the direction 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 movi07eo( ss l,x xs,amo5nng in a direction 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 zkrs(d(k qv9 rn ;h3fcd5j x:(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 agvzte 8ny 7:s6 500 V potential difference. If the potential difference is changed y 86 vtgse:zn7to 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 pointsieu/--b tl 8mq are 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 from point A to point Box 4vq7 hfp5xb(*2 tgt along an equipotential surfac72pb4 t* ogft (hx5xqve.

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surf gajh96c0x 2vo*jx6u,: yg p*zc/o auweyng*2ace 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 nkylw212b0 px 7) o4wijbp7lxelectron as a result of moving through a potential difference of one vol7)p 7nwbwi2opl1 b0y jkx lx24t 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 g fee)5g/*phetkr*(g 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 correspontikcyoz , e.5fk s 9w41b;ud5teu6p- rds 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 didrphw177 jk:.s xn.*e xngv.zstance of 2.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 m away from the sam..rj.wg7dpkx 7n1se x:h nvz*e 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 negative point charg1hjgj 0nv*4tre is -100 V. What is the absolute potenj 4*0ng1vtrhj tial 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 x;xkl76htge3 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 squa37ge6khtx l;xre'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 chau:nx/jjrsa d3 8w5u,h rge of +Q is located at one of the square's corners. What is the absolute potential at the square'hdus aw8nr /x,3u5jj: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 consistjb(alfj.j ;iza q2z hrn68m9:w g2*pe 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 vjd:td;wd0 brj:a ;s a(h93 )yqpfq8ta

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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 :m 4a+ fhha/pb3dagtfh5xd +ml.w2 )tthat one has twice the plate area of the other. If the smaller capacitor has capacitance C, the larger one has capacitanceag dfx3+5t4pwh fmaa.+:b/2lh) mh dt

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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)lr;eu7tg+s70v x.08)gku mkwob s eb area of the plates is doubled and the distance between the plates is halved, whxblmko.g b7)es t7seg;)0kvu08r w+ uat 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 jn 1qgjj:-3ab and 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 difference betweej3j1: najgbq -n 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 gihy* 4ym7vcl f+f(xk x q99,4htpdb)tgven capacitor is weakened, the capacitance of h v4 f9dk+thpt 7,xby9 x(q*g4)f lmcythat 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 wx z08 mb(uwf.gd,2xrwith constant voltage by a battery as they are pulled apart. During this process, the amount of zr xm(., 8udbgx0wwf2charge 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 v*o,51c0m d/gbsj pao roltage by a psac1 *j0,od/orbg5 mbattery 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 dielecpmu vie0.0bstx,pc : qi6;s;ajo9hq pl7x )r)tric material between the plates of a capacitor.i,x ht6o 9psrql j)i;mc7v pu). :q00aps bxe;
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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 i)xi 522uh(nmi nhhb8placed between the plates of a capacitor. What ha28ibh ui2x 5n(hmhn)ippens 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 between thers4xjj uc04z,ci/-*am v :hdu plates of a capacitor holding a fixed charge. What happens to the electric field betjj:u4r/,40dc iazuv-h m csx*ween 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 ba d4*llamk y 7m7.mmnx:a4.seqttery and becomes fully charged. The capacitor is then disconnected, and the separatiyx.*sn lamedmmam4.q7 :4 7klon 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 ho-6(7m7z yh*t lrbwsw llding a constant charge causes the energy stored in that capacitor t7rzhtwwm(6 s7-ll*y b o

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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 en mqev4* xi,,y1 zgyh m)di+qk;ergy stored in that capvmgixy; qd,*k4+qyz ,h i 1)meacitor 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 charge from point A to poiw1 eolx6v3vg, u7imoi :exg )0nt B. What is the 6g1 7wvx ou 0ive)3xlgoe:im,potential 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 electf *lnyhh9tm0k:s 0 b-tron from point A, where the potential is -50 V, to point B, where the pot0ymhslk0-b *f9ht n :tential 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 acceleran 3/16x k hggg4lck(eyted through an electric potential difference of 500 V. What is the kinetic energy of the protokg4gh/n1g (k6y cexl 3n?

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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 ths2rrg9w /sa v5rough an electric potential difference of 500 V. What is the rgr vs aw/92s5speed 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 protonwt.z5juh ; rifs t.86q falls through a potential difference of 1200 V. What speed ftw.rz.8;qujht s6 5i 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 injd; d dp8k()wa 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 thr 5 0blvlt,o5uuough a potential difference of 500 V. What is the veloclvou t ,0l55buity 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 03e ty.* oqyq0aa2izi. The object is accelerated from rest through a potential difference, and afterward the q0qi. 3ieyot *a zy20aball 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 differencl ogg d(6voha79d9b1 ge between two parallel metal plates separated by 1.0 mm. What is the electric field bet79 6lo1vgg(ahd9o dbg ween 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, iswe2 2z*sivx6f7kt*l e directed parallel to the +x axis. If the potential at x = 5.0 m is 2500 V, what is the potential at x = 2.6t2*27 s flei*vwkz xe0 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 electcq6cunis33nx;h97 )- doasld ric field of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point is 80 V, whatnxos6 qa i)ds; hcd-n9l3 u3c7 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 direction of an electric f1xc;l0by m em8ield of magnitude 3.0 V/m. What is the changm ; 0lmx1e8ycbe 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 b 93qbfmywsals+u, /r 2y 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 potential difference between the initiabur3qy,m2+wsa l/f9s l 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 9 abkk1cj9 :kc 4dkc.eby 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 a bk c1.eckkk9c:dj 94positive 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 t36mle/r gmx-vw)*rj 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 positive plate, what is the -6jx tlg/m)3vrwmre*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 toward vvpg 4/ wmk 8yiug2/;i:a 5l1r(ht jaqthe east. If the voltage measured relative to ground at a tvaaj4/8;ugp2/ rgik:yil 5v 1hwmq( given point in 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 electric field of 5/yy ,vn c34 hay2gk dv+2 j(c.igkjaa50 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 that(yvg ia. 3jadkh+vnj/2k5g2c,4ay cy 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 12 V, it will acquirc;-.mvr durc+e a kinetic energy (inm+r;urcv.d - c 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 a* a8bnk9fq8hg t a 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 ends of a mev9)2 6doz-xmvjv)qgm ter stick. Find the electrical potential vjq )z)d2g69xmvov-m 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) an,v e7;2rgtmt s8twpf7d 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 potential at point (0, 4.0 m2te,r8g7tmsp vw7 ft; )?

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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, 09)uts ra i+(w u2m +vyiemw4 v9uj7l3j). If the potential is taken to be zero at infinity, what is the electri9uvmwi ma3si+9tu w 4+lj 7u2j)re( yvc 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 6c r5:s3symi qcharge 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 point (0, 4.0 m)?5qym:6 icss r3

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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 + t h9.*nrcgh i9p9gxq7rvki 4ibt6pg4-r* my :q are 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 = 3.04gbngim*h c4ryi*-: kv.tp xrq7tr9gp i9h96 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 placed in two diagonally on:b jr+d a)rksd(l3;-i2 kvfmpposite corners. In the other two corners are placed charges of +3.0 mC and -3.0 mC. What is the absolute potentialm srdlrv;3 njd-ib)2(ka+fk : 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,r8t dg,4b/l qm 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 x,aq:hdkn n/ lea9v4cf v16+k to place three charges, each of 2.0 mC, at the corners of an equilatenl vx4cqe16a kfhv/an9 +: ,dkral 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 pld0/oy ko8ik8zmd;ck5 ates of a 2.0-mF capacitor when it is charged to 100 d dkk oz5myi;o8c80k/ 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 plates ofy ub8+44v:k ua -pww6)z gchxr 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 plates k p3:k )n+ie syfefo3t* )oop1are separated by 0.050 mm. If the capacitance is 17.3 o*k1k f) etoi3n :py )e+3ofpspF, 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 capacis b..-roraw i6tor has 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 of 5.0 cm. If the pn(orb6enrv7 l;n48k-0c we ofotential difference between the plates is 2000 V, with the top plate at the higher potential, what is the electric field between te6l 4 ocnn87erk;(b-nof 0w rvhe 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 coh nvhh:6br jhc4;.m3onnected across a 100-V battery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil63;jrhhvnoh mc. b:h 4 (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. 4xqj;blm/ bmia, t l,:How much energy is stored in the c /bltl;m:4mjib , x,qaapacitor?

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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 stored in the cag lvg8rh zl55hk.+bs;pacitorv8h+lls bz;k.gg5h 5r?

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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 whena:c rw hdt)l )utl5e3* it is connected to a 12.0-V battery. How much work )* c3e:lu wtr thad5l)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 a 16)5u hugjccs25os tthat 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 capaci5/syvipm4e2o1 j(/nx9 pfh l itor 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 capa yq3geh/ +kg.rcitor 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 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 co xk4 9*cp7xqjtnsists 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 constructed) y+ vexipnz8* 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 capacir rn.qj.;gl.e6y/vz vtor 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 connected to a 50-V battery and becomes fully charwhes*) (9:3zq kjmxdr ged. The battery is removed and a slab of dielectric thk3j*x)hr9mzsd (q : weat 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 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 full*g2j zyo0h):/b* 7b l aih*hzdvvfj3p y 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 vfh37)ph0 o*lb vz/*2 jd:hi jz*vyagboltage across the capacitor's plates after the slab is inserted?

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