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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 y85 guxuxc5 -kis 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 coulom9pv9wf 3f7g cqb 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 oy ,m nm0u,zd+ci w p32xr-*wvpbjects are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Whv wipn *wzpym-u,0,rm2cd+3x ich 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 theh,yr+vgzj8k3. g w 8mm 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 opposite to the elecx -dp:ze 9fd2/hi+r;0 q exinctric 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 conductib/;t mf1d;9;b dgxhhrb2vvpo -c3n5 q ng 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 0mlc( jg5 2eeaaccelerated 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 ejm52c eg(l0aspeed 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 the same potentialh5tjh0i;4pnpgix 1) f 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 Bj 77l-;-,a cctramma :1c bmgd along an equipotential surfac 7:ccmlmcrb7-g m ;d-a 1tjaa,e.

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surfaczlilbaia9. h*ra 3,: ge 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 equa1fv q 2yl4:0fy)nv wel pd;b7ul to that on the electron as a result of moving through a potential differep;e 4wfq0vn1 y dlfu2v7:bl)ynce 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 unit oeidw l mrlk,v 1 ;d75wh6w1(tef

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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 l ejslkh), /q(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 plaiyqy )e x: t91: q/0ccz:urbositive point charge is 100 Vt yl10u9er:)yqbzi c /:cqax :. 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 from vejtwo7ag(g nlk-w-a*n-0b h/ 2lw(ca negative point charge is -100 V. nglwe27w-bv(0t j n cwa*g/k- (o-al hWhat 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 a:uy,kuvk5a hemu5r.y4* 0wotlq5y; ft the exact center 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 center when each of the other corners is also f0v:5y5kua kulr 5t.;ye qf4 uw*hy ,moilled 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 potentialf/qd x)ewv2 s0 at the center of a square is 3.0 V when a charge of +Q is located at one of the square's corners. What is the abso/f0vd w)se 2xqlute 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 two charges t)(gysqh23 :6hg-qnhwi lm 6tghat 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 abw7o ej qs oz59y6d.6a

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel-plate capacito46eabs .jtyakj/ twv ;mw yi 0hh1cq;1)o*uw+rs are identical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitan obay tchm4*j;u1 kw ;wvqsh) y.j+e at/i160wce 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 h angsg -v0z5 nt.0tx:)lndk5area of the plates is doubled ak 5agxtls n0gd :)-zt 0.hn5vnnd 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 c 7n0if d0;xtmfully and then is removed. The plates are immediately pulled apart. (With the battery disconnected, the amount of charge on the plates remains constant.) tnf0 ;7dxi cm0 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 weakenedw n. f:;0wpoa5zof6q y, the capacitance of thanf qy.azwfop 60w5 :o;t 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 wl7ca/g0 y vwq)ith constant voltage by a battery as they are pulled apart. During/ l0cq)vg 7yaw 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 capacisg /k,khz6 zfuk)tzf9b(s4s) 3r e 8crtor are maintained with constant voltage by a battery as they are pk/zrf69 (b3fsrtckks h,)eg4zs u)8 zulled 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 diel,uf (vs-f8fuuh 40 gxopplj m,mi ,),sectric material between the plates of a capaci hfp,pg84-s (mo) ,uliffxsm0v,j, uutor.
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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 capaci3gnv *r3y:b aytor. What happens to the capra:g* y3vynb3 acitance?

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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 the ;j9gv7sjnvh 7 )l*u rqplates of a capacitor holding a fixed crv7hqjl*v )js n u7g;9harge. 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 capacia sf nkto9e br7lpc6.;o)8 pj,tor is 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 charcp,.e9p68ls joo)kratn b f;7ge 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 onm k oi5ou2).2p/dnhgrqq2 5m)b xt1nf a capacitor holding a constant charge causes the energy stored in that cxuomqr5512nn2m)pg)tb /nd2 k.i oq hapacitor 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 cazr*u ei*qon ; - e:lraooa+/r(uses the energy stored in that capacit(+/ alaozenior:r r; oe*-uq*or 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 enerlz)3qfxfr8 s 4 igd6r5gy to move 10 C of charge from point A to point B. What is the potentiaqxg )sr5fdr8il3 6z4fl 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 electron6*rrep2v+ sajs -tbu8 from point A, where the potential is -50 V, to point B, where the potential is +50 V, svra86 t+sejb 2- p*ruis

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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 throufqmbafzle;( 2l7,) d wv2bw y*gh an electric potential difference of 500 V. What is the kinetic energy of the pro; 7lzebm,av2bf)f wl 2d(*qywton?

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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 thr) 6 fq7uc81h e4e sm/mu) nwj0jwvyh3wough an electric potential difference of 500 V. )w4m3 q /u)mnhv jwhuwj1y 08e6fes7c 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 2h8m3y yqihqbo+.muzbny1. 0 potential difference of 1200 V. What speed does it acquiri8 + 3oynhzq0..myu yqmbb h12e?

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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 d2.*qp/vj x w3bt4puaV 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 thwgnp3a .eh6e5rough a potential difference of 500 V. What is the velocity of the electron afterward?wg5e a pe3.nh6

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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 rje0x 2k(-/ t.*nifm ddx9hnemest through a potential difference, and afterward the ball is moxx/ dee ik0hmmnj-t.f*( 9d2 nving 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 elehe(ylag ,9nzqz-xc6 : ctrical potential difference between two parallel met,:9 gex (aqyncl- hz6zal 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 field, witvf k+m5zu (e4bh a magnitude of 500 V/m, is directed parallel to the +x axis. If the(bufzkmev+ 5 4 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 toward the east. kz1yjk+ qx8+l2r 82 bqyl:mlmIf the voltage measured relative to ground at a given point is 80 V, what is the voltage at a point 1.0 m directly1jrlzql+y 2 8 k+l:xmk82bmqy 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 fiwp,xg3 m08 jdvsj5 m)deld of magnitude 3.0 V/m. What is the8v5s dx)pjd0jm , gmw3 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 by 0.20 m, are connecte/-4t; gwd bhj.sdhml1d to a 12-V battery. An electr-tsddhw.; m bh l/1jg4on 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 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 0rup/+bzr/ -mzt eic9;.20 m, are connected to a 12-V battery. An electron released from rest at-u /crrzie;zt 9p/m+b a location 0.10 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, separated by 0.20 m, are connected to a 8,tat.-mf / 1p gdq hna-uk2dl6k4sem 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 speed of62t1u/fh.kdt4 aq mlms,p- -a egn dk8 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/Cpp(d+c :+n j/;pw;ddffb7 (y fqrgi5b 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 f(qd+ f;bpnb pp(gw /iydc;7f djr5+: 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 fiep -fen kf)y86(,m+myygf4xgeld of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point in the fi(fg 4 )yf,gey mk pnfmyx-+68eeld is 80 V, what is the voltage at a point 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 poten3jj4sbacdd3j*p /5 j(w,yi zd tial difference of 12 V, it will acquire a kinetic energy (in d(3dpjj3j zwj,b5sc iy da/*4the 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 disjs7oxit k( ;e(tance 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 endzt1f/fv1qjzr .r wk*sp 5) )yos of a meter stick. Find the electrical potential for the center of theow*5 y p1qr)f zk.jt)1/zv fsr 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 cha vft cu94p4ql*/.6k3y amr waerge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric powyrq/u46 c* m.alat3ev fkp 94tential 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). If the pote*d4y/-y8tpa ayrcc e:ntial is taken to be zero at infinity, what is the electrict*-y4d8c cyr:p /yaa e 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 cha2 hfb j5v3-v, oysm:bjhs)c hkj-g:l,rge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the work required v fl h-m:hbb3-y2sjj,o5g:,kh)vjscto 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 am9x 5yj7y*wlthe corners of a rectangle of sides a and b. What is the potm x j759wyl*ayential at the center of the rectangle if q = 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 placed in two diagovu :4f- kkdi;onally opposite corners. In the other two corners are placed char kv ;uidko:4f-ges 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, mass f,;x(a4bg *gdu g;uz y$6.64 \times 10^{-27} \; kg$) 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 n+qlvuvi(2g+lm4 a w *jecessary to place three charges, each of 2.0 mC, at the corners of an e l4i+va+u*lvm2 (w jqgquilateral 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 platx: g 4mwux2an1es of a 2.0-mF capacitor when it is charged to 10u124wxmx g:a n0 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 capacl 765x q.qx3d5mienmaitor has plates 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 capacita xb*w o2zt/13jmud,dor is filled with air, and the plates are separated by 0.050 mm. If the capacitance is 17.3 pF, d/bw23z*x1j tmdau, owhat 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 plates of arg1kkiotw:, f-a- f (4bcb a-knea $0.20 \; m^{2}$ 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 potential d7yj7m)l j odr.ifference between jo77lrj .dy)mthe plates is 2000 V, with the top 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. After the batterytkg2 1yy n. m3a*hm9rd fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How much additional charge flows from the battery, which remained connected during the3 . 29ytdnmra*mgky1h 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. How mu wal -qj2sf9m:u, rl.nch energy is stored in the capa2s anu,r. lwjfq-m 9:lcitor?

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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 storf bu -gbqxh3rjo e;gg;6*t-6eed in the capacito j-f ;gobb*xe 6-3 gth;6qrgeur?

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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 flba6k1 s8 zga,0 bssn9qows onto the plates of a capacitor when it is connected to a 12.0-V battery. How much work was done in chargingb a9,gnbs1ks806qzs a 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 bgs+4fnmhl6 - bjm;sp.y zmv3) +/dpv is charged 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 capacitor conan6/ b2wvyi,joj g3;osists 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 consists2 km(tirdn; 9h 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 of plates of area+fcsbp( qhz3( $1.5 \times 10^{-4} \; m^{2}$ 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 plate a4zo1wi mi ,3virea 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 capacita3(w( e cv(aspor 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 -lzl9+lrl5fvx hoc)00 u:s ru to a 50-V battery and becomes fully charged. The battery is removed and a slab lx 9): -ll5zlu+ rfh0ucvs ro0of 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 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 charged. T0 6a7( aaptzvaq7pbkg*09k.1y zgzl hhe battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the dielectric has a dielectric constantz1l* a. v0g7p0 khpa6z( 7 9bztakygaq of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

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