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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 iv,zj ,q clkd9 ux:so,8)e0 gnqs 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 qp4cfr 8k c3 n;xluh*0is 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 insul*ye1ct,i hjlxyp )34lated from their surroundings. Object A has a net charge of excess electrons. Object B is grou34cp1ixy)j l* lety ,hnded. 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 dire i 5m3jsse z0 h-eke*9dhd65ddction 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:c.vazw5- fbh/2xw dg 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 plazc;-s)ywo uh2 ced on 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 V potentialmbhjd y vi0s*).v.br ly74g)l difference. If the potential difference is changed to 2000 V, what will tl.y4l.)h yjv)id0rsvm g* bb 7he 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 thq -t+ vfx;poeh fjw1 2kb3qlv1+y,xp6e 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 jr hy9y v7h4a.from point A to point B along an equipotential surfaceyj ah9yv7 4h.r.

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surfaqb, fycl,5oym-pdlm 9 ve6- p /r+tu6sce 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 el/9ph*/ zp;4aogs *bl pb.dwvtectron 4;pp*bbsot.dhv l*z p/wg/ a9as a 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 a ujiptjzc3 of;ym, .* ;ynit 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 correspondlp++ vo6avu ,;2gzy wwarx(o/ s 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 2.0 m from a positive point chacr678m a a.bbjas+8uwfjxwiqdy*:1: rge is 10urib c +d. mjafq1*ax:a6w8y 87s:w jb0 V. 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 bcj1wmf;7oxnwrn,sm( 7/z x*2.0 m from a negative point charge is -100 Vm7j nnwwmfs(ox7bx1 / ,rz*;c . What is the absolute potential 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 whew f:;d*:7ua *yhaudesn a charge of +Q is located at one of the square's corners. What is the fawau h :s:u*e7dy; *dabsolute potential 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 a square issmqr9r t.2psgj6rfjz 0f (2r- 3.0 V when a charge of +Q is located at one of the square's -fptm r6gjr j9f.(qrr22s0zscorners. 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 consist of h q jemq0;gk ) ;;w(d dkqc/b)l6qz;uctwo 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 iv5z fj dj/s7c 0iy4g9as 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-2 6s9bj xlwih identical in every respect except that one has twice the plate area of the other. If the smaller capacitor hasb26hjs9l x- wi 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 qm yc es5g;p:8capacitance of C. If the area of the plates is dg ;csy5p:8 qmeoubled and 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 fc5+ 39 cfi qfkr4cfv;nully and then is removed. The plates are immediately pulled af rn9f 4ck5ic3;+fqcvpart. (With the battery disconnected, 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 ofl3ne n9hsgx2/ qq0; 5rjktji/lm4i1 z a given capacitor is weakened, the caph;n20ile/s15j/ rnqq3zl4jx mtik 9g acitance 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 j:c vl:r25etb28k lk uwith constant voltage by a battery as they are pulled apavr tj:u: bc825lk2ke lrt. 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-pla b6) n;m bd*nki3gemu6tz8(kmte capacitor are maintained with constant voltage by a battery as they are pulled apart. What happekn(nzbt g 6 ub3m*d;6mikm)8ens 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 m 8p ibhx:8ovatry q*b*ed0: (k r2(hnyaterial between the plates of a capt n:hvb(arb (8rek piqy2y8d* h*o0:xacitor.
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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 n tj-zm brm r0+g0(azx)be;q 4n drj-6is placed between the plates of a capacitor. What happens to the capac xbbn06 qzr0m+ n jj-d)ert4 g(r-a;mzitance?

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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 px:i 7lrpv9xvk 5 )neg*laced between the plates of a capacitor holding a fixed chargr vgxei7l 5)nxkv*9 :pe. What happens to the 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 92n eb1gpow(1 * qkifvcl *dp 5+e7kycis connected to a battery and becomes fully charged. The 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 capacitore17 *k difcye(+wgqo1k9 nc5vpbp 2l* 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 causes the+di7/emt xa-q7atb *f energy stored in that ca7em-b+/xtfit a7q*da pacitor 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 cauaj)q:vqabf62s87 nlnhu r 8,mses the energy stored in that csrbv8a 6 :nluqmj af8hnq7),2 apacitor 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 of8 r 2xhmdt nk9(ng*f q4dno4*i charge from point A to point B. What is the potential difference between points A and md xnr8hfd(gnk**i 4nq2 o49tB?

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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 pote1 ptm7( kvltqd0wb2q- ntial is -50 V, to point B, where the pote(q mb q27pwk-t0dvl 1tntial 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 potentialky. tll z8- 7gv/luuy: difference of 500 V. What is the kinetic energy of the pr.zyl /uvulk78g yt :-loton?

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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 dif g1 fcvpp+2g2pxis; 5wference of 500 V. What is thepvcfi;2pps 21 g+5gwx 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 difference of 1200 V. Whrf yr*-m8ibh5 at speed does it acquir8iyrf mb-5hr *e?

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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 tk9t 6vzi/p as1d04 le7zjr,fV 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 difv+772kaky m6fdqtbi 7ference of 500 V. What isika+7f6 yb d2 7kmqvt7 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 rxxu s84g.b ,umC. The object is accelerated from rest through a potential difference, and afterward the ball is moving at 2.0 m/s. What is the magnitude of the potent,uxgs4 x 8r.ubial 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 electricaltj3ot4xnd h t/ tat.-9 potential difference between two parallel metal plates separated by 1.0 mm. What is the electric field between the plat 4x.3nd tajttt-o/9thes?

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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 magnitolnaibiq:cz;,*.h(q ude of 500 V/m, is directed parallel to the +x axis. If* (nai.hzqbl:oi, cq; the potential 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 :/ee ))ynm9gcc4 jpum8nlo )stoward the east. If the voltage measured relative to ground at a given point is 80 V, what is theeo cymum n9)) 4p8/): gslejcn 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 field of magnitude 3.0 y9dyk/3*a wly . kbe /5svii)jV/m. What is the change in kinetic energy ofkdiy3y5j w9.y*k/al seb /)vi 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 by 0.pk)s7by k c*cs7dzmav53l)c g *kmz) /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* dzc5y*v s7/)l gp)3)kz kmma7bsc kc 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, separ v/6;5v+rc+rkyhcbb1uk- b-z q tbbp*ated 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 qpky+ 5v cv/6b*k;b- -trchb u+r1b zbfrom 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 bata.4 q x2thjs2wbx:xymgrp4;;tery. An electron released from rest at a location 0.10 m from the negative plate. Whenh:w p2;am4g4.rqxj xbs; yx2t 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 directed toward tv o 8 *vw:bk5jgx0d;chhe east. If the voltage measured relative to ground at a given point in the field is 80 V, w8kgc jxvv boh;d:w* 05hat 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 50 N/C directe:u;g*/us erkc8p-gyxd 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 c r-pg*/;e:8uu xsyk gpoint?

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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 acqu;ta7 cbr.px06g .bm zbomb4l7ire a kinetic energy (in the absence of tob. m7ba g7r4mb0p.lcb6 zx ;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 2sehg3(*s-epjg4i fe8 clnu (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 meter stick. Find the es t)a ,,yig*dx-3wzpelectrical potential for the p)w, , g etayxz3is-d*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 -2y8xk sz-17elc.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potential at7eckzl8yx 1s - 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.ln 8m)i gvvd m1wus:1 i.wucmpp w3veiu-(+980 m, 0). If the potential is taken to beiiv:s1eu(-vm + pwg1uw pcn3im) 8. 8dw9 lmvu zero at 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*ap2du )( yw fj ,k pqoa,i)bbc((ao0n (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(fb0w qc,no b(ak )dj(i)upyaap,* o2 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 the corners of a rectangle of eez1- uaz )sjn)01wpasides a and b. What is the potential at the center of the rectangle if q = 2.0 mC, a = 3.0 cm, anae1wspa-u1 )z 0)jnez d 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 difo/a 3:;dhqboagonally opposite corners. In th/dh qf 3b;o:oae other two corners are 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 (cd+xdp + 3sl;cuharge +2e, 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 three charges, each of 2.0 mC, at 9tkvf4b d)3txthe corners of an equilatera3xtk )4ftvd b9l 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 cv on9tah*ys +x+ro6x .harged to 100 n+v a6o x+rh.x s9yt*oV?

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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 a9hez8mbity fk 3l72s: rea $0.50 \; m^{2}$ 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 th od.gq- x e k3m2z1tn3kml(hq.8c)qice plates are separated by 0.050 mm. If c-qk(qc)k3.21gmli o3hm zt en8dxq.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 capacito * p:uqdwa c4)gvao29vzmh.f+r 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 o u 1tfh+ux(6nof 5.0 cm. If the potential difference between the plates is 2000 V, with the top plate at the higher potential, what is the elect(t6h un1+oufx ric 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 bz yhmxiyuyk+2jh 4(. -attery. After the battery fully charges the capacitor, the capacitor is immersed in trans(m.-2x+zhy ky ij4u yhformer oil (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 p;t zd9t35eod glaced on a 15 mF capacitor. How much energy is stored in the dt9g 35t;od zecapacitor?

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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. Wh bnlz hr/1t/jcxuvj-/ -t9t2mat is the energy stored in the capacj/tcuzbnjvr/hml2t /t9 -x1 -itor?

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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 itnciaw w/ mv .:.l2ozw5 is connected to a 12.0-V battery. How much work was done in m2.zn.owalvc5 iww :/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 that it storeo:63 uawi ;q yp,f,-fsulru *rs $2.0 \times 10^{-3} \; J$ 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 a/b xlnh5j mg7zl1 11mplates 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 kzx u*cz9 n(r5of 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 platks )ebui+;9g+mu )lo2 jvn3md es 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 conc+i(klj myagsr; qf0dz4q ,+b, / f7svstructed 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 isf9s4.5 gxi4j6gw ca5.yovdy*t8li fn 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 wg;pzh*( u bjz/epb /i+l14dibecomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the dielectric pb1b4*(e uw//jii z+hdp g;l zhas 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 fulk vv4 9btjxp94ly 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 voltage across the capacitor's vk499tpvx 4jbplates after the slab is inserted?

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