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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;h2/c qeipeepdpk:+pwe)+ q * 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 is .p,cy( s5a lqoz8s3vh 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 insul6xn3 jg6ep gq zc)ay5so7*;k iated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at a higher po) g*okj7pei6;5qc3nzxa y6 gstential?

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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 eleco)*u +wwpx2tu 4tq3mp tric 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 ele4jb5z/lc4z 7ekww) scctric 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 poysv 0.l06 gfon 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 accelerane+g/ egt;,jj n7av5s ted from rest to a speed v by a 500 V potential difference. If the potential difference is changed to 2000 V, what will the n/vte sn,7agj;+njge 5 ew 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 as)eh y7z 4cnc;re 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 B along an equipotentia m-y, -5.,tm : ;wg awmmfqo2roa;fhlal surfacerf; lwa; ,m :-hmo t2, w-a.ommfagq5y.

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surface must bfn4b )q)yu8m p fdbq o.;i*q2re

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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 parti3(a u k+dpu/sp0od kt.cle carrying a charge equal to that on the electron as a result of movin u 0(kpto k/pusad+3.dg 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 unit tm-einkv):n;6f 2ie fof

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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 t3 sek3pree- u8o

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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 f5a6x-obm.tu(c 3(f1fvjt2 pj bxfo:rrom a positive point charge is 100 V. What is the absolute potential 4.0 m away from the same pfojjo(c1-t f:rm p.x2ux 5f6vb at3(boint charge?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potentialz1ua ,pg9t j, 4s1cabcq* i(ag at a distance of 2.0 m from a negative point charge is -100 V. What is the absolute potential 4.0 m away from the sciaaqsu (9gc14 tg,a p1,b*zjame 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 centzl7 e 6o/5 0q2 gtuu,6dj pc3wf.tm7m)w fuaufer 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 squw w56e).u 6ac0u,tjou7fzmmfl 32 fu7 t /gqpdare'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 39 q; tp27t+ldysq5 e/aiht)ro.0 V when a charge of +Q is located at one of the square's corners. What is +yt/ srottqq2 ai9)7dehp;l5the 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 two charges yt*5 7feudw l2a7x,fgthat 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 voltp,b0s55qi v.v7f0 ctq*li 8er-:jnrl up 7aky 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 g2c,syi82s 0iqgxi r)2 zva+v identical in every respect except that one has twice the plate area of the other. If the smaller capaiy2czqa v2x8)v+g g,0 ri2isscitor 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 area of the platereril-cus r :;/ +lt9gs is doubled anduir sc:/;rg9 ler+lt- 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 pa2y;istubcl:ig nr8 ru;6 :5 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 between the pns68laprci;r5:u :i;y2 g ubt lates 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 capacitors/ vptd pf-28u is weakened, the capacitance of that cavfu 2 s/p-pd8tpacitor

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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 vte+ s4w2xl0prej w97constant voltage by a battery as they are pulled apart. During this process, the amount of charge os 4ejte7 lx+2w rpw0v9n 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 maintazr+ pd.,/ z5eq2pzq7y*xy i ooined with constant voltage by a battery as they are pulled apart. What happens to the strength of t,q poi/qy*d2yoez5 . z+z7p rxhe 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 mjbcz 90s5,ae caterial between the plates of a cap0cb jcez95 a,sacitor.
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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 tjd7 (epzdn)e9 hm9 m+bhe plates of a capacitor. What happens to thdpd(7mn h9e+jmb)ez 9e 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 the plates of a capacitoxhpm m1a e9o0yotm+ql9-- zqc g w;75jr holding a fix7 hmoxm;y aqe5z +9q-p-m0gow t jc1l9ed charge. 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 is connected to a baqcw* e0 e gds:dz .9p7v*tkl8nttery and becomes fully charged. The capacitoz dg9nwc**0pktqlsd87 .ee v :r 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 causesg d4bkf4 i*3j )mz91pglroia,*xuw m,gs j4(k the energy store9,pr,d(gb43ifsjj4x *g*)ma 4kou mlz1giw k d 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 io0 hi2(k5mg .+ rjaaba given capacitor causes the energy stored in that capacitor 0h+am ibrk2(oig.a 5jto

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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 to0 g)mqk0 d1moq point B. What is the potential difference between points A an0) 0 mgdqq1mokd 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 electro9jiri:9e a8vw -lse4 gn from point A, where the potential is -50 V, to point B, where the potential isar:e84 ji-ewlsv99g i +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 accelerrg )uyj76e;i3 l 5es.w.f9 oq gcy/kykated through an electric potential difference of 50 3g;j5ye9r6kgl.f y/ 7soukyeq.c wi)0 V. What is the kinetic 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 potential differz2mxjawj*/ )m 2fru2nz(dipiy5 :sh-ence of 500 V. Whaujy:isn(j2zi) 5a dpf2r2xh-z mw*m /t 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, ba .4nboxwq4 0l )hpn-a proton falls through a potential difference of 1200 V. What speed does nx hbnq0)op- a4. lwb4it 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 in movinfd *ttj;;5 qlhl/akt 5xi824aj, jqjag $8.5 \times 10^{18} \; electrons$?

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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 difference (( 9b *fthw :ycadk-ea *avutp7(w4tiof 500 V. What is the velocity of the elect afp(4:hi9v(dkcttt*ww ea *7ba y(-uron 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 kp0pu0 ;x6bia xon-o:c io ud0a3rb96 a charge of 20 mC. 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 potential differxpb-aa0nob 6i0pid96 30urc: oxo;k uence?

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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 electribd- 3;19t5 mj1k cmsei ah4.rkdt7eopcal potential difference between two parallel metal plates separated by 1io 1d;ec4e137 - kt kds.9h5jm rbtapm.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 directed parif *kar8/fcw qt*q8 y)allel to the +x axis. If the potential at xc)t 8a wk*f8qfq/r*yi = 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 dire4)haoxx5 7s623gc yzobg w(nl cted 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 direct)yg3s2xw7gn6azxc 4oh5 o l( bly 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 electrg1s eetgu6mo:v , 7en2ic field of magnitude 3.0 V/m. What is the chane,1v7e 2se6t n ogmug:ge 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 pmpg9 rma,5s+, 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 tgmr,a5 sp+ p9mhe 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, sexvvo0).m go1c/krs g ,parated by 0.20 m, are connected to a 12-V battery. An electron released from rest at a location 0k 1 )g gcsrxm.o,/v0vo.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 b(kfmwp p .:1n;:cn5m/) qwo gmwfwqb,2 mdn 3qy 0.20 m, are connected to a 12-V battery. An elecwm o(;1qmwcn gk)w:bnpfm53.w/fnqpd:m, q2 tron 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 directed toward the east. If l */ibgdio2/pg8 3tolo6 : pywthe voltage measured relative to ground at a given point in the field is 80 V, what is the voltageyp*oi l3g/b2/:potdw 86li o g 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 Nffe d/rg5x;x5x / awa/u 0s;raizf;:c-a (lgz/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 soutzse ag-5f;uf5igwd:0x; r /;z/x xfc(aa ral/ h 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 differenlhi 1w2dm2slwk4;g2( m o b j4p:a;dvwce of 12 V, it will acquire a kinetic energi go ; mbla42 wjd;4kvw(p2s:2 lm1wdhy (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 di;s98 w. 8.fayh fzzz qfp-(fgcfo2-t ostance 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 electric v1 q+llmb5w:/sr)d yral potential forr l1l /+dbmq:r)vw 5ys 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) and a -2.0-nC charge is f.vo1b7k 9farat (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potential at point (0bfoa7v 9 k.f1r, 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 abl7but th: ktp c;ii 28/6p*urt (3.0 m, 0). If the potential is taken to be zero at infinity, u/p;7utitr l 6i 2p8tcb:*kbhwhat 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 poh-r+;6fr o gu/db ubj:tential is taken to be zero at infinity, what is the work required to bring a 1.0-nC charge from infinity to po-o6 g;u:r/fj drb+bh uint (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 re+ w.a xnp f*jm*xnw8w4ctangle of sides a and b. What is the potential at the center of the rectangle n*nfwm.+j*x8 wpwax4if 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 sidex u60)yg +ypxgk; pwl4. Charges of +4.0 mC are placed in two diagonally opposite corners. In the other two corners are plap +w yxygg)x06ul4pk;ced 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 a.g8xh*ugu u5.ad c y gwg+2ua7af+a-x;5xhn+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 tqu9e j c: o(vygj)3n2hhe corners of an equilateral tr ou:jjhy)v3q(2 9gcneiangle 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 ofk ;batj-fsnvmpm) :)+ldy 74iy42hpe a 2.0-mF capacitor when it is charged to 100 hl p ni 4j):2y spv-ymmb4e+7tkfd);aV?

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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 ha pp4yre:ps7s)s 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 capacitor is fillr fpa.e:b458stlfa.+ (fr5j + ewpswsed with air, and the plates are separated by 0.050 mmff.sj r .w4+afelw 5p(s:pr8+5bsa t e. If 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 capacito2.ta h tg4 ge0gqw0ei3uf)j 2mr 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 l+cfeap no)/ / oe5l5ohas a plate separation of 5.0 cm. If the potential difference between the plates is 2000 V, with the top plate al )p 5 o5co/en/fle+oat 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. vs:6hls;khx*wk+ aao f o:c/ 6nl i35yAfter the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How much additional charge flows from the baw+*:soaaf 36n cy5v osl hk6 ;k:i/hlxttery, 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. How much energy is g: p5ms4wq8icujo28 i3 xi mh7stored in the capacitor?5 q ipjxw2m3i78go 4us8imhc :

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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 th8 uku; +fbg85m lxr4o)*opdbt e capacitoru dlb+*5b)kt8 fgp ;ox8m4 uro?

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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 ow69; .i lynofrnto the plates of a capacitor when it is connected to a 12.0-V battery. How much work was fn9r ;oy6 lwi.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 that it stor*3/rgb )dzcj:j z6tuues $2.0 \times 10^{-3} \; J$ 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 consi j-ndu3l v,2tz ,kkj-ests 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 capacixart/ mg,lzt9()iri cr 3a,1chh,g b* tor 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 consists of plates 8.nz5 as+s j wpkao*6ms( lc(uof 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 plate awtul+u qde1/ 1rea 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 plate area ofg4 9wh z(w5-rl lq-idf $0.40 \; m^{2}$ 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 connecte3h6z 44pqhaf0:xv *wjmbir1r d 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 inserte 1v:r* 4prh4jbhxfmwq60ai3zd. 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,9,6z:latvvk o2) x,t)xhx y;inxna oy charged. The battery is removed and a slab of dielectric that completely fills the space bet anttvo),vxy ),k;hlx6 zanx:2xi9 , oween 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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