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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 iseq ff2qd/ 307dywq *qqd.k r/w7 lpew3 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 coulombknc hnbt-0ck2)gh21c 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:ro l;mksb /2h surroundings. Object A has a net charge of excess electrons. Object B i;kobs l :/r2mhs grounded. 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 direction of the elvim2 *sn.lnnpbrh12 dt1 ::qbectric 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 opposmk 6,pubx6 3bsxa 6dw+wq,ad-ite 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 s-ot5v) ikinky6:s * yophere. 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 u330r nm6dl cle9z(ym 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 speed of th mydlum3(re 3n9c06z le 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 eivv 0nh24*fmreferred 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 equipotent: gxsw ++ripj7x),l bpial surface, r+):wgs7lbxj +ippx.

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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 be8e 2o g9hhfayr1)ous9* b*gmg

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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 that87+whe iyu6ro;n:i be on the electron as a resuwnr+h6 i87ei; buo:yelt 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 unit ofp5 / qb3*f7lww rf 3bqmi8dcw,

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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 to* z*7qae)s/:i6jyl u bik5jco

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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 jk+y5-a8ov*r u ejsn-a positive point charge is 100 V. What is the absolute potential 4.0 m away from the same point chakyju* 8jva+5e-sno- r rge?

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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 chbmqa9g;6ky n n9e o79iarge is -100 V. What is the absoluo6kg n;ye99bqa7 ni9mte 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 centqi .-tem97qrmer 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 eaiqq 7m.te -mr9ch 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 ase yk,p-pn;6n u68me6ew9 t wsquare is 3.0 V when a charge of +Q is located at one of the square's corners. What is the absolute pottwyspme 96neu n6we8 p,- ak6;ential 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 that a5tv9x0;p2hoo h e(nz5lh h5emre

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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 c+ 5*6)pgxj7aclwbya 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 capacitok 145ei s; jthcz.3dm+wi 3amprs are identical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance Cti13 ic js+ 3amhkwp;45m.dze, 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 pla mwm)td367fy(k+w /mw gn4p sutes is doubled and the distance between the plates is halved, what isw()y7gtm mm63wu4 nk+dp /ws f 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. The plada8xl.1;w) ek y fglm1tes 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 .edf )yglmkx1al 18;ware 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 beqy* l6u*tt ws -e; )v1o2jrqgwtween the plates of a given capacitor is weakened, the capacitance of that capaci1rjvs62qy w-u * w;gtq)loe t*tor

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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 constant voltage bdu 1 3t3dgbsm0 cxn x2o6kr9f1y a battery as they are pulled apart. During this process, the amount of charge 6o9rd13xdkfcumg0n bs32 tx 1on 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-nesdu e/knk)ko2 3gp* (5 -htza5no7iplate capacitor are maintained with constant voltage by a battery as they are pulled an (p7on)2ks5ka5/h do t ez3k*en-ug ipart. 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 material bk+l qcu-)g12pgkv1tpetween the plates of a capacitop) kvg+cklq1 u1 g-2ptr.
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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 capac b vng +a+xf*.ivexq65itor. What happens to the capacitancevq5e . +i*+6xnbgxfav?

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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 xhgul, 68-fgyf9 uku3za v-n /of a capacitor holding a fixed charge. What happens to the electric field between the p -g9fy z3 uuv,kxf6gu 8n/ahl-lates?

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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 battery fnkdq4 czl,uh; (..z dand 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 thu.fk;d .dq hz4,z(lc nis 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 0mt qvp;2d./:jdh flfyt 1o uf(;2pcq of a capacitor holding a constant charge causes the energy stored ;pf;qlmdpt.1f : o vh20y(ct udqj2f/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 capacitor causes the en,gvahb/z--u c j1st/r(rza g*ergy stored in that capaci(h t*aj-rvzs g /r-gzu/1 b,actor 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 enerhnfzq+f,4; pj ( /vrqzgy to move 10 C of charge from point A to point B. What is the potential difference bejzv+/fn,zq rfq (; 4phtween 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 movif4 : bgob(*aa s3+g,9uiyak*g :iu aowng an electron from point A, where the potential is -50 V, to point B, wheib+ 4gbo 3w(9a* yk*fu::aai sug ag,ore the potential 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 potenti. )ql bjyz ;mf*beibwy fk( .w7ao;o9(al differencq(zo)m9 ;(. jyklbwf.y;bf eo*a ibw 7e of 500 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 acceleratl1 t rwzhj)0e9ed through an electric potential difference of 500 V. What is the speed of th)0et j19rlzh we 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 :a)xeouo3jr/ fz.t lck yc5+ *V. What speed does it joc3+*t /ru .cy )xkea l5z:foacquire?

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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 -ng9 hw(ygp kw 2+:unqmoving $8.5 \times 10^{18} \; electrons$?

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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 5 um5s87kktrg )00 V. What is the velocity of the8msk)t r g7ku5 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 ad8zv):q jkd2 c charge of 20 mC. The object is accelerated from rest through a potential difference, anv)cjq:d 2z8kd d 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 the electricaldku wx0 u8ev*1:j uubctg+ ckb ;;m4r9 potential difference between two parallel metal plates separated by 1.0 mm. r0c49:kbbjm; u1u *uv wt xdge+;cu8k 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 dir k:),.y buac p*o9sbinected parallel to the +x axis. If the potential at x = 5.0 m is 2500 V, what is the potentn,* o9:b.pku baiyc)sial 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 1-lrumrbmf 9/m3y 6kn 4: h+nzx2gd: bc6 dmpyeast. If the voltage measured relative to ground at a given point is 80 V, what nml/d-3yf4 6hm+mxr2zub m 6d1b gpn :kc:yr9 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 al8 fxhe 8r ;ar/e*)avsiong the direction of an electric field of magnitude 3.0 V/m. What is the change in kinetic energy of the / 8a;he v8xsr*ef i)arproton?

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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 connected to a 12-V batem6)-q s5twomx;s. uttery. An electron released from rest at a location 0.10 m fme s o;6qs.mtx)w-tu 5rom 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 bynf(i58xgz:k8yg1b*op k vs n+ 0.20 m, are connected to a 12-V battery. An electron released from rest at a locatii8gn(gxvp:5n sfk*z8oyb1k+ on 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 s(5 zws *k.dl(od*c0 cc-zcyl 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 from the positive 0dol*(ck-lczczc yw* .ss(5 dplate, 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 dire+zt 9ofoy s8 n5s/s;wgcted toward the east. If the voltage measured relative to ground asg+sz 8y5o 9to/f;swnt 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 dix ,0bxhux 7-o8 yd*86qtlnewvrected 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 thatqo- v yn6 e0xwxd*l,u8x7t8bh 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 differenb(y;uweai/m) ce of 12 V, it will acquire a kinetic energy (in the absence of fr )mb;u/a y(ewiiction) 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 distb+8sh3/ mhup.c jwyi (ance 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 isdupgt *ggd*:x:;.x a meter stick. Find the electrical potential for the center of the meter std g.tgdu*six: *g:px; ick.

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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 at (3.0 m, 0). Ifru 7sl w,,x*2ddacdr3 the potential is taken to be zer, 32xc7u s*drd ,ralwdo 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 -2.0-nsn5(z, . vxmpkxdal (2C charge is at (3.0 m, 0). If the potential is taken tlda(.v5mp kn ,sx2x z(o be 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 -2.0b cxn:z m) ljfi-s962b-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what isn9j-m blx)z6 i:bfs2 c the work required 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 corners of a rectangle of sec qn*6ejpn(s/f. 1f/(lw d ,wyi9j rsidey q/ w9efr.s6j 1ilnws fp,/nedc(j *(s a 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.vjbzp,18 xla5w vq4a9 )biz9r Charges of +4.0 mC are placed in two diagonally opposite corners. In the other twoli,v1 ra5 4b9zbwjv )9 qazpx8 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 (charge +2e, masspxn)-r2lch /n $6.64 \times 10^{-27} \; kg$) 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 nec3a mp4uc:uuw,essary to place three charges, each of 2.0 mC, at the corners of an equilateral triangle of side 2.p3acm4 ,u: uuw0 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 platesyy+pg 9z el6q qb)m31s of a 2.0-mF capacitor when it is charged to 100 91qyz ms bel)ygpq +63V?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate cap sxlo1fan+,n4 fw m8*qhfa/ o)acitor 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 capacitoys gffh5-r4vr2-a e) or is filled with air, and the plates are separated by 0.050 mm. If the capacitance is 17.3 pF, what is the -f4)5ovfhyare -s r2gplate 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 :fl7twf3zd( b*os ltle1w3, p 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 ixobeh8c n.g1lysu s. pj)/99 5.0 cm. If the potential difference between the plates is 2000 V, with the top plate at the higher potential,spo8i1y.e xul9bnjg cs9. )h/ 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. Afd+8y*lneemep. ae94 qter the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How much additional charge flows from the battery, which remainye 4+d pmee*8a 9qnl.eed 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 mFm2wyav*e6) en capacitor. How much energy is stored in the ca e m62ay*n)vwepacitor?

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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 ctkf5ft9p y+nt 7ua,z1d6i o*at is the energy stored in the capaca +tu 1*df9i56ok,ztptn7c yfitor?

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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 w)upu dk3ba tgh;1s+p6(4oiixhen it is connected to a 12.0-V battery. How much work was done id( uphx;p6)gk +43otsii 1aubn 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 t9dc (by6bb7d4 mt 1vde gh4wl.hat 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 plak6z 3:.id.oncfd 5r tstes 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 of arkv aoqj3/2 l,f ibm58uea $1.5 \times 10^{-4} \; m^{2}$ 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 consisz4 ou76d. lb)b yy1ginz7u(9 lvzh a)ots 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 wi*iu dki t/jo063u /txlth 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 is 8)xi19 webrq 5qisys-i 4gv ;sconstructed 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 becomes fullyzc/2a 6)vlu yykm/y m* 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 capacitanclu*m)vmc zay /y/ k62ye 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 char2sam.bvh s s2 z,69qwy32nucw ged. The battery is removed and a slab of dielectric that completely fills32vmc2wwh,ya6zs9n buqs 2 .s 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 plates after the slab is inserted?

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