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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 7pa3notv9: d: ;hjftw gc an)fem 9(6cis 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 coulombg; mkc dja h5 bxgq4bua1;z(6) 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 their surro:8hu98j fbj8ityxy h1undings. Object A has a net charge of excess electrons. Object B is grounded. Whx y89ybifhtu 81: jj8hich 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 ofwyzk3md )gbmb 2.hv 5: 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 a direction opposite to the el5l8hursq cm75ectric 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 place(b+kqq9jlqa4m0ra*jsu y7 g5d 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 u:lreznkly d ,gsv9 1o9 v4)/na speed v by a 500 V potential difference. kdz esngyl,/1o:99v nvu)4 rlIf the potential difference is changed 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 at the skjf zu8l5rqd -/c5.sj+s opx-ame 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 equipoten:z9,8,s ( dbbbgq9vkiq95ao hnaczy2 tial surfaceq9g ,5hq za, ni:b2 8c9yvk as9(dobbz.

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential sur - ,adx 9:fsahxp;5rimface 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 parznd sqo k,+/.gticle carrying a charge equal to that on the electron as a result of moving through a potential difference of on /n +gq,.zsdkoe 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- 4tz h9euei b08foo i/zneu,7 a 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 corresponds ttcubr m :y1m)lhel)(t5 5 +xeyo

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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 posifg jl0au4 zl3-tive point charge is 100 V. What i0uzaj4 l-g fl3s 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 distay, c y2:-/hemk4iqj9:jigoxance of 2.0 m from a negative point charge is -100 V. What is the ae/j-i:cyqy :4, 29 joxgiahmkbsolute 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 exac+ v.nh (j3pf7gtoq ;jat center of a square is 3.0 V when a charge of +Q is located at one of the square's corners. What is t pn+jf ht;(v7g3.ajo qhe absolute 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 squux/,;tnmf-nx -by km4w. oa5bare 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 squarekx b-b. 4mfw ,;oy5unatx/nm-'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 ks4uom2v+u 8o 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 ispp1*u;fuk v4 xtdq*q , 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 thadb rnzy:ktu t84 f;:l/t one has twice the plate area of the other. If the smaller capacitor has capaz/t8r f :tbdyu4:k;nl citance 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 g5e9c1b kqd m*the plates is doubled and the distance qb15ck 9e *gdmbetween 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 e n 0xc)-7n4cloz; udjis removed. The plates are i ;7d)exnn0uoc z4c- ljmmediately pulled apart. (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 bt+t3jeu, x /fgg6*fbof a given capacitor is weakened, the capacitanjegt* bu/+ ,x ff3g6btce 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 main so8tendq9 ;ml)wn6b1tained with constant voltage by a battery as they are pulled apart. During this process, the amount of cnmt8nl6 q) w;e19dbosharge 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 aly1etkj5(9 as:mz; c zre maintained with constant voltage by a battery as t z a1em9l;zsjkc5ty( :hey 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 dielectric mal8rxyd*8qo i 7terial between the plates of a capacitoyqx d7* l88iror.
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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 og 46es*/xp3l chefo a)f a capacitor. What happes)x 3/ehcfl*4 gp6ea ons 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 sucog 2vmbin2lcn)w nn ;poipn;eh+-2) 3h as paper is placed between the plates of a capacitor holding a fixed charge. What happens to the electric field l-ncpv;h epi2o ;m)i b on )n22+gwn3nbetween 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 bat,/xc*mc ;btvutery and becomes fully charged. The capacitor is then disctuxb;/mc, c*v onnected, 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 causes prwi13b*icf n0 -7 hmvthe energy sw-chb i3* p vnmf0i71rtored 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 givw/mn,bq bq wb f k(.r,eep7)3lh:f/oj en capacitor causes the energy stored in that capacitor tob).3jq lm :b, /f,eb/ewhkfwpnq( o7r

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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 hxn+fyi3zb) 5to move 10 C of charge from point A to point B. What is the poteni3 +fz5)ynhxbtial 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 pa8dz. v4ff mjmqz8o51oint A, where the potential is -50 V, to point B, where the potentiao.f8zdvmf zj14 qm8 a5l 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 el08+5 uin65 hzrjy bgdb3n; q8ipboa-cectric potential difference of 500 V. What is the zicpbn5b+ n8 0i-5a8ybd qjr;ghu36o 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 jolx4hz.l1/uthrough an electric potential difference of 500 V. What is th.hu1lxzlj 4o/ e 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 sn.; h6f ame;tfalls through a potential difference of 1200 V. What speed does i f;s;m e6ahnt.t 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 ;eos;;q1i owzzq.9dumoving $8.5 \times 10^{18} \; electrons$?

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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 of 500 V. .). r z) xk1kquwwnq m+pfz.a8 What is the velocityu.a. x1 mkzq8)fnk . pzrqw)w+ 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. T 1,inj/vz+ydg gh z0t8he object is accelerated from rest through a potential differencez v hny+/i0z81ggtjd,, 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 t0 uopiym;i7 7ls-lszr0, i j6lhe electrical potential difference between two parallel metal plates separated by 1.0 mm. What is the electric field betwe ium;l6i,pr iyl7-sj0s 0o7lzen 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 directe74xiu zu22gl0j(ai8hppia8z d parallel to the +x axis. If the potent7iap8lxz iz 4jpag0u( 8uh2 i2ial 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 t* *nq.l odl-yx opqg80h oi;o y(c-4peast. If the voltage measured relative to ground at a given point is 80 V, what is the voltage at a point 1 q (hy0--gcpoyoln l* dx to4*iq8.po;.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 dire6.l11zvk4g .se hc gckction of an electric field of magnitude 3.0 V/m. What is the changesl.k kvg c16g ecz4.h1 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 byha+ri x3eh cc2xt;vj1 2e7o,h 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 electvjo1 ,xtihc2r +cae23 he7;h xron 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 0.20 m, are connected to a 12-V j1x oi k1,-nhwbattery. An eleco11,ijw -nkh xtron 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, 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 mi2 3j2-q ; el/ztaerabattery. 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, what3 e2 j/m2tqaalier;z - 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 the 0zs*xbpe)+ende7 u:2pl*dctvoltage measured relative *e*2n:)+xbd 0s eczu p edtp7lto ground at a 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 50 N/C directed toward the east. If they 2*vx-f m)0hkf:zi zi voltage measured relative ti0izxz f-yv)m: f*h2 ko 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 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 diffe xx1715+7lq.vl,b casqoj .gmf4nae brence of 12 V, it will acquire a kinetic energy (in the absence o71 lsl5f4v.ec, aqo+mb.x1ab 7xqjngf 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 distankst/lut mn28yx- 1- iice 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 electrical4 n 3*d3oqmr*(vtpz h-ylvw0a potential for the center of therl v-qy p nda mwvt*3o4(*0h3z 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 c32:w fbcfd6if7wk0 rw0 0;k yzfa mii.harge is at (3.0 m, 0). If the potentz 3fk20f7bc:w;f fayiwwi6.mrd 0 i0kial is taken to 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,ml2s7rq4 kyq -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potenti sm2q4k,r y7lqal 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). mv.ly18yc ,p q If the potential is taken to be zero at infinity, what is the work required1pm 8, yvl.cyq to 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 the cc1yqxgt+sa1c d91d8 dorners of a rectangle of sides dtc+ ad9 ycg11d1xq s8a and b. What is the potential 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 diag 1q-g)a7vsb-lcm7i ahonally opposite corners. In the other two corners are placed charges of +3.0 mC and -3c1hgmvl s-b7)7 a-qa i.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 x*0b(l opollh-pg8, c+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 3zqg6nhbkux,hdbz-1t 4 , h ;wthree charges, each of 2.0 mC, at the corners of an equilateral triangle hgzqhnzb6tu; -k h31,dwx 4b,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 chargedhkgf n5+zi4c n yyz,kq47gh0 9 to 100c4f 57 n+hzy9y i ,gqgk04knzh 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 hlnyuu6dz9 1gu8ax-9 was 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 filled with airh (onuwgy69h x 8vji4k +:bd5u, and the plates are separated by 0.050 mm. If theovuk w 5u4g:nhhybxi+ 6(d89 j 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 capac5 vgxwom8 os-4itor 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 plmoxq8 fiz)4 /))lb( r +ivewdotential difference between the plates is 2000 V, with the top plate at the higher potential, what is the electric field betwee 8+i) l)lqz/( i4r fdv)wmeoxbn 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 ac(x+bl0 ) hr;.nac vbgnross a 100-V battery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How much additional charge flows from the babh rnn( +0v xglab;c).ttery, 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 m; v w/vcbaiy(j3n;,ngF capacitor. How much energy is stored in the capacitony;3;nvijvw/(b cga, r?

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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 sobh6ytq2iq 7 +tored in the capacit7to iy+2q bhq6or?

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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 floqq9iuahq*o )o 7k g*:snj/ mc8 wl0;bfws onto the plates of a capacitor when it is connected to a 12.0-V battery. 07n*a:/c;8qwo s mbiu* h )qlqg9jfko How much work 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 chop t:3s jada* ea2 :,qisc5w2larged 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 consists of plates of areo+)nurvtz 8 6 zq-vr3qa $1.5 \times 10^{-4} \; m^{2}$ 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 co:k8f9jhv5 .ipkrdmq 9 s5vqb 6nsists 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 consistod) 8u*xyj:yqsld2y*f ,li* fs 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 with plate ksb5db7;kbwh3ld.u u ryb,.6area 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 pl5 bq(5huzrk4h 9(faekate 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 tos.mouxug 3f19 a 50-V battery and becomes fully charged. The battery is removed and a slab of dielectric that completel3xuuo.9gfsm 1y 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 beco7 *)hoa3sy +-i uyzedtmes fully 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 so*a3-dhute +)yz i y7dielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

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