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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 not7x ck )+mpxb0f 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 z -7 d g9,g..bq8sv0qajajyas 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 thei 3io zsz2qoc- ;dq5f+ vb.( / z)z8xoo+jhwrvfr surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which ob vxq 3qvzofr5 .2+ zcz;8 d)oszob j+h/fo(w-iject 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 the electric fieq3 00wpvjhtl3* r 0hzsld

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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 direction9+y yb fpwq95 hrjx663ckhy)x 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 hollow conducting sp *dg6sj:h: htahere. 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:,c1 lcm ;aiyz accelerated from rest to a speed v by a 500 V potential difference. If the potential difference is changed to 2000 V, wlc:, ;zc imya1hat 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 same potential is referred tolc;5*r36twrw 7 adz9ow d u-hg 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 r) j8rclsau/nfo-p9 /p- xt5ito point B along an equipotential surface-pi98)rt rj/ safp5 lcon-xu/.

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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 0989 hvzsfhxj 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 charf/d h-7bq -wlrge equal to that on the electron as a result of moving through a potential difference of ohqd rw--bl 7/fne 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 aufj + /0/ujohv 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 sxig,/sw p 5x)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 distance6vtidwsn6, mr/ kru j+f3b(:e of 2.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 m away from the same point chak 3vtr+s 6iw6(e/d fj ,ru:nbmrge?

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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 charge is9 uh rgm8983zu3 uth(7n2oic pi)hl tj -100 V. Whapg ) nc8uzu7olt39tr3 hii2(8 m9uhhjt 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 Vaxg,4/ wj d) ouycdrwg p:9,)r when a charge of +Q is located at one of the square's c,u,y9 c:dd 4wg)ga jp )rw/roxorners. What is the 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 square is 3.0 V when a ckt )fccb8lu)+e9i3 im9gx6o rharge of +Q is located at one of the square's corners. What is the absolute potential at the squari cuc g+ )l89bfo x39tir)6ekme'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 conshvoh29 u dq/yb3 hiu;,ist 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 i.okaq,oeid:fo+k -e) s 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 excepr,ydbmd y20p 1rs7 b;ht that one has twice the plate a0m 2pyb;sry7,h1db rdrea of the other. If the smaller capacitor 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 capacomnrm2hqro f g19 n7z6 y:;m54 s(jemcitor has a capacitance of C. If the area of the plates is doubyc( 67mm ;s2jfh5ogr znq1nrmme 9:4o led 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 fully and then is removed. je ug/u3 oe*wle3i,dbs7 d)a/ 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 plates as they are beudubj7le /a 3g3,*ed e)w /sioing 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(b/ij1 d;.ui-rikdd v a given capacitor is weakened, the capacitance of tu.d;i/-dbd( ijr1vi k hat 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 capacito*svr ihz eaivp)(10 r9fxhw**r are maintained with constant voltage by a battery as they are pulled pi fv0rezhxhs9*v*i* r1a)w(apart. 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-plate capacitor are maintained with co+xg tfcq,:t*xnstant voltage by a battery as they are pulled apart. What happens to thexxtc,f*g+ q :t 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 a2bl,;6 d3ynj cnmi2p rdding a dielectric material between the plates of a capacitor.jl;,nypdbn rimc23 26
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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 b :(vavw;+mcd-ibbd7yetween the plates of a capacitor. What happens to the capacitdv mi-b:c7y+b vdw a;(ance?

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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 thb, xikn:*6p/ma ;kfgzwmcv+;tb:t k1 e plates of a capacitor holding a fixed charge. What happens agkpizvx:+ 1/ ;tkc6 nm b:t,mw*kbf ;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 connjq;x/o4jxa w1ected to a battery and becomes fully charged. The capacitor is then disconnected, and the separation j1jx/ ;oa4 xwqbetween 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 ca mlyf*j* yaa3 .(pkwm;uses the ener(w. *f; 3ylapmmy ajk*gy stored 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 given cub q/ihy3 d yxg6oxc7+3vnc 5-apacitor causes the energy stored in that capacitor to56h-q3 /u n xi3cxgdbyv o7+yc

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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 tog +bs jpjc*d6;/s 0i )mlwme3u point B. What is the potential differencebj*30j im6dwp )sme lus/+g; c 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 indte * khf29ka: moving an electron from point A, where the potential is -50 V, to point B, where the potential is +50 Vkh*2:e fdatk9, 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 +w9g-egbw u/a through an electric potential difference of 500 V. Wwbg 9 a-gu+w/ehat 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 potentiabkyyjc od /w/m+u8 h,l1 .g4bvl difference of 500 V. What is 14+wbld m/8y ,yu ok jc/vhb.gthe 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 12p v 13m n3+zb+a(h :k la;mf9qf vhls*ry;gco-00 V. What speed does it*;3rph ay -f9 zmnv:qh( lsgfov+3am c;1k+lb 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 yc j)ip 97 )x7a*ri ltp(3prggin 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 0t:qwv ,c 6 excdouv:i 2mo-o.potential difference of 500 V. What is the velocity of the elect 6eq,vo.coxt: vcmdw i2u0:-oron 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. The object is accelerated from rest 3/tey+lv+wtt2mr/ g0 x bm: hbkwfz/4through a potential difference, and afterward the ball is moving t/lt 2k:mw/ew +/mv4g3+brzx fby ht 0at 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 difference between two5s8pwxb ,odi) parallel metal plates separated by 1.0 mm. What is the electric field betw8xs b,i od5wp)een 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 magnitudeb * 8nqgx8+gk8lt o3)h5qqkg k of 500 V/m, is directed parallel to the +x axis. If the potential at x = 5.0 m is 2500 V, what is the potential at gnq* g3gq+58qxklok 8bt8)khx = 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 towarp3y0uw w:7 *bbicpbox .idv+ 2d the east. If the voltage measured relative to ground at ai2*7wb y p pv.cdbbuoi:x3w +0 given point is 80 V, what 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 thg y.ndy,;vfe nwe09f k m:gm0/e direction of an electric field of magnitude 3.0 V/m. W/vedygn 0:k,;emg.f9 fn myw 0hat is the 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, se.jy 4z1rnlbm 7t ;hub1parated 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 1.50 m from the positi;1b4 ltbu17n.z yrjmh ve 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 coz0bk (jqm cvd3yz m)y5(j0ms.nnected 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 vyq cmdzzsbj05jy3) (m 0km.(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 aqk -xd1tp4c 8u6 p5uyd 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 ip k5u 4txpy68ucddq-1 s 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 nt tx /c;iim6;field of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point in the fm6ci;t /xint ;ield 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 electrj-e9g) wdsd t)kgq/ 0ju1edj5 kzl:, xic field of 50 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 soutegwj d0 d:s9g1/xj )q ke)-,5tlzudjk 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 differe 6n;n 9*yi gl9)gx4swniat/hletd/ s+nce of 12 V, it will acquire a kinetic energy (in the absence of friction) od/9l;*isan9wh/6s 4gge l nny+ tx) itf

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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 dis72/oc5 hs4qjdzymzq. 1;e g mwh-a rc6tance 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 enh; q pogx4g0+k*he0ep c)m1po p5y9 rxds of a meter stick. Find the electrical potential for the center of the meter stipom;hrpogy50p pk)019 ehcg qe*x+ 4x ck.

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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 -2.002wyyh 2r iiwizc)p50-nC charge is at (3.0 m, 0). If the potential pywi25 yh0wi2) zi0cr 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 obcz 5pj .fit419;x ao(0, 0) and a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the z bi5;tpo4fxa9j.1ocelectric 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 charf,d :. c7 cbe8e:bpxbj)o q:jpge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the work required to bringe8:.7d :fbqobb pxe:j jpc, )c 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 equal05n1he*wa n5 evyzbx9 charge +q are placed at the corners of a rectangle of sides a and b. What is the potential at the center of the recta9*a5eny v enwz5h1 bx0ngle 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. Chaicj3 jk*h8r-y rges of +4.0 mC are placed in two diagonally opposite corners. In the other two corners are placed charges of +-ki*hjyr c j383.0 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 +2v-tt, l kul8 dae6zs8 z,z*o5ge, 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 mof drhg9 6/r 5n3lryky l4oo04C, at the corners of an equi 6lfo y 43o0r dlokr/4hry5n9glateral 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 pni2h9u/wc12ois (o i llates of a 2.0-mF capacitor when it is charged to 100 wi9o2 ns(o21uc /lihi 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 platy d5v e1tx;pt2es 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 air, and the plates are sep ln3k na8r -( o*m5/chkpuvq(carated by 0.050 mm. If the capacitance is 1uc(l3*cn/(qk5pv -ornhak 8 m 7.3 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 capacitor has plates efi2l++x- ekpof 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 thedw4h s rec-8,rx+xlj 1w+tjdn 1t9/zf potential difference between the plates is 2000 V, with the top plate at j ec x4dx t9frr1z++lh-t/,s8 nwdw1j 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 connectu jl,ae897h w0ej ;rb5hfusw3ed across 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 batte05h9uw ua eesjb; ,rf lhjw873ry, 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 sta/sg7u-t4;jb 6krrc6 v;fq lzored in k lsu6r-/cf6zr avtbq;;j7 g 4the capacitor?

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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 energvz sdph66g9, zy stored in the capacitoph966gsdz,v z r?

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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 it is connv-pccrl8iv9 (k( lxx*ected to a 12.0-V battery. How much work was done in charging xk(-8 ci(xcv 9r*vl lpthis 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 ip4oehf/,o d3v0bjfv3 t 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 ofr:m;wgbbfdbk ) 97x( q 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 co2 3*+ak2/g)stnac sdk:dz ;ibwb(mf mnsists 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 capadsl 2c6 y ,jyt0/u/gikcitor 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 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 pla );.yu )cgxuio,,uacl0u jy3r te 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 is constructed with plate area oq3 7cid8o9vw p4a7 dqall l6r;f $0.40 \; m^{2}$ 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 full hai/ybu 4;6xgy charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the dielectryb6 ;hixa u/4gic 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 chargedhbg*j(/8a wyiup- iv. . 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 plp av-*(hy8b .iuiw jg/ates after the slab is inserted?

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