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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 ism 3e,w:4wzpn q 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 coulomb tc/a: h +fvx-nis 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 wp v/4gesj - 3o90lus l5,vqb.rdyw7wfrom their surroundings. Object A has a net charge of excess34 sqvwyjv bpw5o 9ld0s,g/ rl7.-wue electrons. Object B is 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 electrictrvacz+ma*xi7f98) qb 2m pk: 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 electric fim2y5 q*2 d-( qcyii / sqist.)0tqmeaneld

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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 sphere. Tc9rw ++h*r. b+rlgk cihey

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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 fc4) v9 oxdv 8lmpmub-+1oi .fcrom rest to a speed v by a 500 V potential difference. If the potential difference is changed to 2000 V, what willv.+luccpo 8x) 9 o1vbm4if-d m 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 refew7104/ jlzniq3 th+kab cgi5irred 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 fr 73nrxj :be1zrom point A to point B along an equipotential surface.3nr7j z1r e:bx

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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 betu y 2e6t z61d;rxnx4iaw9 lo/o9u:mn

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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 that on tir2 jntx: m;6mhe electron as a result of moving thrr;x m2 6im:ntjough 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 uni s/*2 rzg(ukqnt 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 correspondcx4 pk-)8w)qet9bhc us 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 hs4 tfr/ udip*zn(bfoe95.4n 6u qjg8a distance of 2.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 m 4 ubusehrqjif4ongn p/f .8zt(d9*65away 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 6d ; vfoe/iq)hd7x*n7g 7d xhra distance of 2.0 m from a negative point charge is -100 V 7df ;xh*7v/qi rddgex 6n)o7h. What 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 ix (92ypdsbh5 of a square is 3.0 V when a charge of +Q is located at one of the squahd( s2yb5 9xpire's corners. 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 fxw6wio8h* 02upu 4x:toyaz6 when a charge of +Q is located at one of the square's corners. What is thex*i uu0hw8x y2twop6 :a6 zfo4 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 charg;xxnd;pygfo5n0 -z+x es 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 is an7u(m utvd;ja 75b u z3sr)ayazx4n*7u pm)l4

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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 t *2u-eqruc -i18x ckgshat one has twice the plate area of the other. If i*8u-1k c x egu-2rcqsthe 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 capacitor has a capacitance of C. If the area of th 0r z xb5hf.d;m-hwgj:e plates is doubled and the distahgb 5:0wxd-m ;.jrfhznce 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 parallt3o+ +wvwz7dl1fid; uel-plate capacitor fully and then is 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 plates as they are being separated?dv++z du 31wo7fti;lw

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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 t okogei9oa 9epif(w0:/4,mophe plates of a given capacitor is weakened, the capacitance of /foieg9ppom9wo,0oae k( i:4that 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 xs4uq2erbsv+f+bgp1mz4: j-* a)dmowith constant voltage by a battery as they are pulled ap4e-1 :smosvj 2x +pq)*a bmgbrfud+4zart. 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 capagrfjqz/sm53hm5 3 urm*ybc 75 citor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the electric field during this process?s/ q*mfr53gr 5 m5hyjmbz 7c3u

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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 ,p-ho9ytunw71eqp+g a dielectric material between the plates of a capa+q,1t gp whpn uoe9-y7citor.
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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 ca aa9zuv95d/ qxpacitor. What hap/a z x9uaqv9d5pens 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 sucq( puyt: bh)r3pq659+t8s)e(xu3lifbp w lea h as paper is placed between the plates of a capacitor holding a fixed charge. What happens to the electric fl+(raq8ei b ys pu)(:e9tf lp3)t6 hub 3xqpw5ield 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 battery and becomes fog072x r 8ri+sjw8 phsully charged. The capacitor is then disconnected, and the separation between the plates is incrrs 7 ipjw2s8r8o0 ghx+eased 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 capa 2:zgqi hn/; pg.xn j,bi9-diwcitor holding a constant charge causes the eneri pz.ix b ,/qjig;n9wgd:nh2 -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 capacitor causes the energy st b ggse/l07iq8 pfnyd:x-3 5fwored in that capws03iy:qelxgbdg-8f5 7 nf/ pacitor 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 energy to move 10 C ob b1.mw( wo/bkf charge from point A to point B. What is the potential difference bewok b(1m w./bbtween 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 point A, where the potentian prb)5y q;/sb/(;n;ic isoa kl is -50 V, to point B, where the potential is (n;)c 5ipq n;bb y//oiska sr;+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 fho8te tt53jo6f 3(q vthrough an electric potential difference of 500 V. What is the kinetic energy of the 3f8(oef 6t5hv o3tjqtproton?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton, initially lc2 : dvvc:y7vat rest, is accelerated through an electric potential difference of 500 V. What is the v 2:yv:cdl7vc 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 fapm61*plbso5zm p5-m 1g,p,t pan 5tbv lls through a potential difference of 1200 V. What speed does io*5 p 5v-t , s6nlmabb 5m1ptpppz,g1mt 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.i1 zkn9qwoq lv ;t8o0 V 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 j 8tvx-x4q wu)5fi1,69 t vgwaj-dme ythrough a potential difference of 500 V. What is the velyi-wv 5a 1 ,vj6u4jx8gtq9dwmtfxe)-ocity 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. The object is accelerated fr93 5leea*uyd(3ak wlp om rest through a potential difference, and afterward the ball is moving at 2.0 m/s. What is the magni9*p(a5d wk3u elye a3ltude 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 pot +/.dwn x*j+wg s isd rpijk)uc;47xm xh2-np9ential difference between two parallel metal plates separated by n gxw iisxp;*.j 4/ mrd pkc9u-x+) h2ns7w+dj1.0 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 fieldu-e 0jiztlo*), with a magnitude of 500 V/m, is directed parallel to the +x axis. If the potential at x = 5.0 m is 2500 V, what ii- u)loj* zet0s 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 electriczbpjo76uz ) (4lksh:,fw 8 rnk field of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point is 80 V, what is the voltage s() :z6rpnwk 7,8u4bko lh zjfat 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 the direction of an elewqs k6c j--5qsctric field of magnitude 3.0 V/m. What is the change in kinetic energy of-qs- jksqcw56 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 connected to a 12-V zg 6v0 u 8neh(sh(hrg0lp4/ jnbattery. 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 posi0g v4gsl (zhehh/p(un jr06 8ntive 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/+/c ncnv3 o--znoms o 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 0.050 m from the po/c-os- ooc3 nnzvmn/+ sitive 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 4gbir vl 2n- e+7w.0n)wc4irlrez /5ngja) lq connected to a 12-V battery. An electron released from rest at a location 0.10 m from the negativ0ir 2ea -wn/vlig5b lc4nlj ))w4ng rq7.+ez re 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 n des1ye-+myw8iwid bkt wy9m7v+,*6 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 dir,sivmiy8mtew +1 6k+ wyn9ydwb *7 -edectly 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 ea +i kh1 g)ceyqtsx79o5st. If the voltage measured relative to ground atyotgcsq97+ikx 51 h)e 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 potentpma , co8gi*rrnt02 plr* kfp,8cw) r*ial difference of 12 V, it will acquire a ki i8 rpro gl, )rn*ppa,c 2*r0*cmwtfk8netic energy (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 distancxo qo-c5c+6fuy k )ma:e 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 thezn6nbahmp; fa6;6+ir electrical potential for th+66b;rn6 pinafza mh;e 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 at (3.0 m, 0). .f0llvz4 k)y ;9d zoaf If the potential is taken to blfofk a4y; vz) .9d0zle 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 -2.0-nC charge is at (33 k ei.+borzu4.0 m, 0). If the potential is taken to be zero at kubeoz+3 4.irinfinity, 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 -2.0eikukb9r )p8 .3 cz7rr-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the work required to bring a 1.0-nC charge from infinity to point (0r r rcb 8p7.ki9kze)u3, 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(hr)my k8ag g urwk.mym,d;)g0 0 *cxw a rectangle of sides a and b. What is the potential atrw,xmmg( 0y .*mr)ayk;gwk0 g 8h)ucd 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 diagonally d)gsd,o k*ju- opposite corners. In the other two corners are placed charges-k,jgdod )us* 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 (charge9 c*jze:d,ls s +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 ne ypq(s absdw/ye z kdb:4o w4l6;d+. 0cvb6-zbcessary to place three charges, each of 2.0 mC, at the corner zkyqsdsdc46/aby 4wb0;l-w: +(v bb z pdo.6es of an equilateral 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 plates of a 2.0-mF c+zc4wir ,nin79tv;9jb l0qg2lj :p/a jsnxk 0apacitor when it is charged to 100 Vnjzqjjsxnkp l+w2 clni094,7gb tr;i0a/v :9 ?

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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 plates of0mh p7cr po7/q 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 separated byb,mqt an/ff.rhcc:d1j, (*nd 0.050 mm. If the capacitance is qnd1,ct rm /ah.fjc ,:bd *(fn17.3 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 capacitojv+d 4hnj+hd )r 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 separati1yu z6sa9 yn,( csoi ;v8iqgk:on of 5.0 cm. If the potential difference between the plates is 2000 V, with the top plate at the higher potential, what is the e,9 u1c8isnvkg(sya;:yoi6q zlectric 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 bath i: 8;mb4w e,,mwvfgodsg*9 utery. 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 battery, which remained connected wh8dg;v b9i*umg 4f, :esmo,wduring 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 capab e..gl dy 54nk qbndhc1/j0eka78ml)citor. How much energy is stored in the ek7 d db. ql0mnc.j/4y1bh5a8)gnlekcapacitor?

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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 sx9l0 hl71 urbc0z a/-bslspi*tored in the capacit 1x *0ss9l7icplaz lbr0hub/-or?

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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 connegf v;58zef edfr7lr/7 cted to a 12.0-V battery. Hod e 7rffgl/;8ef7zvr 5w 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 charged so that it h;-cj .2 xbzvv1k l ly4yap(,lstores $2.0 \times 10^{-3} \; J$ 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 ov0uk )sn +mrls6 n2vz*f 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 consists of plat /i vsqb-. srgfqrl)r*v+aj6* es 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 capac fzv zuk(eh5e y;9v5m39p8qzvg9cf j.itor 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 plate area of t e81ijnh46zum7 ygm/$0.40 \; m^{2}$ 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 capacio76hw s0zr0cy tor 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 to a 50-V m, :qx-lg-qu8vvuz *pbattery and becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the dielectric hasguxmup, q*q :--z8vvl 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 mul/ ve52aqa;g fyjqg9/ j 6:oconnected 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 inserted. If the dielect y;aq g2le/gq/v :juj6aof5m9ric 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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