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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 vecnly lkp3* jh7upa8)l-tor?

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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 a5cerovgi c8/ 3

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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 t sz+byy0; fh0dheir surroundings. Object A has a nety z;bd0s+y0f h charge of excess 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 ther ,d2 or;92rztt:-kl2p jmts y direction of 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 to29/ r iet.+r egohkbu( 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 e4r- xy +3;hicyfho af6pg7tr-oix5 4 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 ujm6; xjh4eeka; 7,l drest 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 e;,lkm6j7u ah4j edx;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 r -(lju-wmzv f.eferred 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 equipotential 5 0lisbv8o9+ 8,cdlvnh0rwhv surface.v hs+0r5vo0hcbw,8ll 9 n8ivd

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surfac4vyoan4a m ;.7 dp9ua px3je:re 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 partie)z nj12nthnqmlzp: +1 xw59bcle carrying a charge equal to that on the electron as a result of moving through a potentian 1l9q:j+1pht2bemz xnz5w)n l 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 unitb+ t(qhbfkb(co9h.c1 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 correspond1 set9m6 i.b 1x12poqcxoe ,wys 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 distance of 2.0 m ba5lcd+b:s r fdnaa.i8os h3f 2ln,2)from a positive point charge is 100 V. Ws:dc fr fo+l2s ih3,52 a)bad a8.nlbnhat is 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 dm0;a1ytdivs.,cxl av().0s we yecx8istance of 2.0 m from a negative point charge is -100 V. What is the absolux, ec0l iedtwsc(sy v8).v0a.am yx;1te 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 sqvzh3arj(yy ;9uare 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 each of the other corners isy(z;9rj3 vh ay 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 ofou 6 or(t1gg5e a square is 3.0 V when a charge of +Q is located at one of the square's corners. What is the absolute potent6gg1u5oeo ( trial 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 x(iux(j* 6 (ctx +ykzqcharges 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 voltpbb lt;c:1ipd;.i ,rr 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 identxj0 ,chpfjsmms34g2;ti/5 l pical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, thix50s,jf3 l 2tsc;pjm/m pg4 he 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 t/r0f gq 9)8 7wjxc6p xpf3ya)kqc(uke he plates is f7pk(8f6gyk 3x9c0 qp/ a u)xr qc)ewjdoubled 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 capa -(d8woc,460obn0ojb dh e;thgl xze9citor 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 dldh d,h;oo w6 ojn z0tg-bxee84(90bcifference 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 bet8j3y+ v a/)ifhqec1ui ween the plates of a given capacitor is weakened, the capacitance of ta3hjy/e 1ifv ui )+cq8hat 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 with constanx9m,6:21njvgxqzhej b d i5(it voltage by a battery as they are pulled apart. During this process, the amount of charge oxen ix65dmh: j(,qj21zb i9gv n 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 constant voltage bf eg7*g r+d p8 vmrv0p-b,yve3y a battery as they ar vv8bvpymg rprdgfe,0 e*73+-e 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 material between the pcj*f8o70 ecsv lates of a capc7c 8vse*0 ojfacitor.
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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 pll ,9,jke8s/qydcj9 l71smwo.veytey 49 ;z rpates of a capacitor. What happens to the capoem79,jpj8rl ktqy zc1.s9vy4 w,s; ye9del /acitance?

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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 ay7vp-jfbk u-i ;yeb+ ,s paper is placed between the plates of a capacitor holding a fixed charge. What happens to the electric fielpv-+,y ufi -y;b 7kebjd 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 fully charged5y xaptli )i1//,vdq -mit+er. The capacitor is then1lr-idi m ,/qxy5a+ptv)iet / 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 const*nt1ye03 r-huhzdz*mant charge causes the eneur1mtz eyzhd* n-* h30rgy 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 fg8f(3*:e2o fph l xgsthe energy stored in that capacitor t:8 eo pgx*h( flgfsf23o

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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 c r34v b3nfiqnrk(l-p3harge from point A to point B. What is the potential difference between points kv(4nrli33 fbrn -pq 3A 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 thg cf1 f a3-yifb+ci8v9e potential is -50 V, to point B, wherf 3+fg-ci1 abc9fi yv8e 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 p 8u/ mkpm0il61ywe r. a8mpz3yotential difference of 500 V. What is the kinetic energy of the proto m.3w i eu0/y8kmmpa1lpzry 68n?

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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 accelr d 3g32tmhv;serated through an electric potential difference of 500 V. What is the s; mhvdt3sg2 r3peed 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 + huphg3nh .c7falls through a potential difference of 1200 V. What speed doesn 7.3u hh+phcg it 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 )ggm ;:osxgu9hw11he 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 through a potential difftcw xx8jwg2(g 2zw2 w(erence of 500 V. What isxtjw8wz 2c(2( wxgg2 w the velocity 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 charl i0.1igbzkao-* 9dnhu4 2b2d iizrf ky6.vw .ge 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 magnitudziwo*vi.0kdzfl 4bn rb-296.1gdu .hyk i 2aie 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 potenwhqdrv*s *3i hr;jknw(( uf )1tial difference between two parallel metal plates separatj rk1*f( i*)vr w;(hu3dqswhn ed by 1.0 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 attyu z9f-);x ( vk6 thay3 pjkc*+3geq magnitude 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 potentia9x h+vqkpt()6 c;*ajtyyge-3zk ft3 ul 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/m4ijb5 kh 5p2 gw;xnw4C directed toward the east. If the voltage measured relativ5 xbi;j5m4nh wpw42 gke to ground at a 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 the direction of an electr q(bcrce+ rva 8q5h8r6ic field of magnitude 3.0 V/m. What is the change in kinetic energy qvbc5her+rr 8 (cq8 a6of 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, separew vyz; /bdv lxwvy:98hte7(.ated 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 positive plate, what ie8l/vwdv.(9yyv zh b;e x:t7w s 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 fj0+ e onqh1dr;q l:q;12-V battery. An electron released from rest at a location 0.10 m from the negative plate. When the electrolq:nf ;q +0h1qoe;jdrn 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, separatewi0 9ptc(sezbcc -( ( akqsf3*d 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 positive plate, what is the sc3qct bki(0f cse9* pszw-a( (peed 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 easta,itj0fw,cvy5/z .ir . If the voltage measurei, cfjwv i.0tzar/ 5,yd relative to 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 the vo+xc7 pi pg10 addtsp04ltage m+p4 a0px gc01 tipsd7deasured 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 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 difference oxtpcjt3n8v/mb5a h d8-+/zmjf 12 V, it will acquire a kinetic energy (in the absence of friction) o5jjb8t t/8xd +a/mzn m h3pv-cf

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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 dis2qc( c a7dsoc2tance 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 arkoy m9o; jebsl3(5 1c9fls f3t the ends of a meter stick. Find the electrical potential for the center of the meter stick.s f1 b3l 3y(lfjre9koo5;s 9mc

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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). If the potemb1 1drlz ye7)u(f* iyntial is taken to be zero at infinity, what is the electric potm (71 dybe1*lu) rifyzential 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) :zz+ i cj fbi 4ux0*n,.;fhejband a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, uh ;.efc: z0b jixfb4z,i* nj+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 ue e4+ j.jac(vahf93(kk4fx/viab j 9-2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the worc+vja v3ejka.fhb4e/4a xi 9(k (u9jfk 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 th4xo/49 e admed m, pzx:vx)0the corners of a rectangle of sides a and b. What is the potential at the center of the rectangle if q = 2.0 mC,x 4e pv9ot/z4xd mm)ex,h0:ad 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 placeji1irqa(3q m7; vf 7zid in two diagonally opposite corners.v(rii m73; q f7iaz1jq In the other two 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, 65 +hj eb0ywmu93lduz 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 toe6 .nzi- nxp 9v4kv490dev0pgjp s5fv place three charges, each of 2.0 mC, at the corners of an equilaterazkvvd9xe9vn0v6g.p f04n -5pp isje4 l 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 onuj) lw 2w)7l nm3sir,k the plates of a 2.0-mF capacitor when it is charged to 10n 2mw )l3l )s,uijkrw70 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 capa7f0;2+kd cxf g4u nkkucitor 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 capacitor is filled with air, axe:a cgd4zg;5 r2k4dh nd the plates are separated by 0.050 mm. If the capacitance is 17.3 pF, what is 4h2k cz5d ;4x :gardgethe 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 ,pq3hm b, ruxzz(g9c3 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 pote( + x4bahkqwh*35tyvcntial difference between the plates i+qkh54c *hbtvwy 3(xas 2000 V, with the top plate at 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. Aft/nx250z v7k7tst vaw jer 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 during 5v7a v/n7w0 zjs2ttxk 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 placccq 6 3mh:bj+/4ixu hned on a 15 mF capacitor. How much energy is stored in the capaqxcin4cb / h:hj+6mu3 citor?

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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 the capj 9pjj3xdl(o vd8,3(uks0x z pacit sz (d33ox vkj,jx0 ud8(p9jplor?

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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 capac qzr l+pq5i. +znga-f0itor when it is connected to a 12.0-V battery. How much w zn-g+ + qz.pqifr0l5aork 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 charg0. bshkge6rv 2ed 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 plat qzoo;dxp/vec1d7* cdu *t:6ees 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 45fdfxi jpv) ,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 consis 7o6u0an or1yats 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 constructe2dm8w2ps ps40wm- zr6lc1rc ed with 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 ko :ixl7e hcwg (4gzv-87m j+nis 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 500-l+m z8j42w yq2z 716il hllspbeki j-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 dielectric has a dielectric constant of 5.0, what is the capa h2l lli+kpm-14sz6wj q7j blie8yz02citance 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 ch/i*fa; x h,t nz*hhsm,arged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the dielectric hasmfn,,xhh ;*i *s/azth a dielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

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