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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 dl o *s 63uk*l xuptr)h:mu:5fxq2oo)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 is allgef uy8)e +agsh 2t(gwg, )/ qv4v*q

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two identical aluminum objectsvzfr;q.:j 8hbni nt70 wqkh(5 are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grobq0t 7n;:q.(niv8rk hzfj5hwunded. 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 directi moyfs ,dr ymlb4xa5/:,5eif 80 ggyn3on 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 qx8x3oo 3g 3f+hrum- lopposite 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 conpjys-3tux39 o ducting 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 rb) req8izy/0y*.;y3sr cwmcsest to a speed v by a 500 V potential difference. If the p*y83 e swy y0r)z/s.cqmr ;cbiotential 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 same potential is referred dz 7/f0m6fwzggt-r s 2to 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 equip(qdu abg6 ls85otential surface.ulds(65bagq 8

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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 or1ziuy/);u(: ld s hibe

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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 pii6.bq,km 8hgn,vjho .ks kb;1m lf+*article carrying a charge equal to that on the electron as a result oom,kbmjk6fg1h h; * .snbq vi+l,k.i8f 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 unhn5bch 10 e;lxit 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 correspondiv(7 33nbo 1 s :avfc pzevb;wbfy-3a7s 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 2j et3iq* .gs/k.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 m away from th*ti.3jqg ke /se 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 distance of 2.0 m from a negative point char 44 vfcdhumb8,yuvs8 z,tghpr3af :.;ge is -100 V. What is the absolute potential 4.upby;udm. fz 4 ,h4 vr3t,8a8gcvf:hs0 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 square4zk rm;6ubd05jny cy1 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 is also fk;brum60 zc4 d 1jyny5illed 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 charf,w 6w:m9x mn+c3 coarge of +Q is located at one of the square's corners. What is the absolute potentia m6m w+r:cx 3afncwo,9l 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 o.s w/rta5dd;c6 qmi ca2gc34tf 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 is a 4sxxx8s ep94 lhcu4fk1kvx3/

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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 r3wfgx1jy i02+8ujnn-p qxw7 in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, the larger one has capa3i 2-ynw f07pnuq jx18wrg+j xcitance

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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 c 0dece3yhev76 apacitance of C. If the area of the plates is doubled and the distance between the plates is halve3ee6c7hv0 d yed, 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-mb ghxix jrl-c va4;ba4;k/xu, -6yz: 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 tz:6 ,xvxbgl c;k-/axa; hrmub 44yij-o 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 betwbdq0)o bo em660 jbph3een the plates of a given capacitor is weakened, the capacitance of tha6 0)6p0bdmojo bhbq3e t 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 parav* jir1 0cah2illel-plate capacitor are maintained with constant voltage by a battery as they are pulled apart. During this process, the amount of charge on the plates0* r2 iijavch1 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 capacid1+zio-gh tk3*t qeaxa,co7) tor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the elect*+ohe)o zid3-tg caq kx17,atric 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 tw3k /kazlq: w4-uls z4he plates of a capacitor.w-l ka4kw 3u:lzz s/4q
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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 pl+x u j7 lj7+jw(cgmcq*aced between the plates of a capacitor. What hapgcuj+*j+qmxjw7 l7(c pens 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 materiarp *tlk6uxf))l such as paper is placed between the plates of a capacitor holding a fixed charge. What happens to the electric field between the platespu rkt6)xlf*) ?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capasd) 0no50vsf) r2r5nhthn y6zcitor is connected to a battery and becomes fully charged. The capacitor is then disconnected, and the separation b52r rs t )n)zf 5hos06hd0yvnnetween 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 x-fa5 a pp0,/;gxipn s 8iar(athe energy stored in8ganxii,pap-ax p/rf;05a s ( 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 stja- ej7 h/g svpc+7(bpahf9b6(wro 0yored in that capaci yja0abf6 (c js9-bgrwh(+7vp7pe/ho tor 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 ogw87 iywx3+a jf charge from point A to point B. What is thw7 jwy+ixa8 3ge potential 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 point4,gm ;xa;0by fxgo :9r anlgvqm4 1xa+ A, where the potential is -50 V, ty a;;xx:am m+rfxgo a,gl b0g941vn4qo point B, where 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 avejru ,4pkc 2dkokv,+ 3b 2m5gt rest, is accelerated through an electric potential difference of 500 V. What is the kinetic ene5jcgeo,d2 v4+2urvk m3k ,pkbrgy 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 throac1syn * e(+xxc+v * beb/sehnz *(ot4ugh an electric potential difference of 500 V. What is the sp/* oh4s ascxn( z 1b(teyceexbnv**++ eed 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 di.eu zh ;6zcx5odhlw()fference of 1200 V. What speed does it acqui.x 6 dc)ehzul h5;w(zore?

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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 wzg5g - aj j4*8.:aotxkiwsx: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 thu n,cj/ vqnm(xpcm) , pma(*6srough a potential difference of 500 V. What is the velocity of thuj(vm/qmc npc6m)p, , (xs na*e 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 carriez:jf)a.:8e:*jnabif+g6a6;x z cx pmf 7xxpfs a charge 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 magnitude of the potential differen: 68z+aa.cj:ja7xfp) 6:mbxfx fxepn;i gzf *ce?

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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 difp4gwj: td 3(;ikusf 7fference between two parallel metal plat dwp;:ftf 3gi4ujs7k(es separated 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 a magnit6vg5wr: c 4n pxqlr;d6ude of 500 V/m, is directed parallel to the +x axis. If the potential at x = 5.0wvlxngd5cr 64; q 6rp: 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 electricra:ao mrn4z u6z+igj/696aag 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 voltageo/um4argj+n 9:gr i6zza6 a6 a 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 ( jdl,friv 7o;e0vpxp0ygl)7 of an electric field of magnitude 3.0 V/m. What is the change in kinetic enev7efr); 07dl j p0ylx (p,ivogrgy 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 by 0.20 m, n ,w(o.wijdgy -e m/3lgb;fu4i(ve- bare connected to a 12-V battery. An electron released f ml uv -gde-b.,;g3w4n(io/biewyj (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 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 battery. A fjfdryzuno8+qty9-;:u4 4 nxn electron released from rest at a location 0.10 m fy8 rfdyuuj;q fn4n-t4x9 zo+: rom 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 battery. An+h6. wa+qlg2+f him *z qxwqj+ electron released from rest at a location 0.10 m from the negative plate. When the electron arrives at a distance 0.0+a xi+zgf.2*+ hq 6hmw+qjlqw50 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 odd7*4ow( uqivf 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 east of theqdvd( * o7uw4i 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 vo09fbopy:i o n(yhh1 r7vzw4h5 ltage measured relative to ground at a given point in the field is 80 V, what is the volthb7n(v0 ryh4w1o oyzp: 9ihf5age 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 dj88b8b9k585v i vl ci.ozfvz3cpe( jd ifference of 12 V, it will acquire a kinetic energy (ibvcz8i c9j8j38ziv(p b dv855eo fl.kn 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 distance 8ismu+61cuz bmr7 7vpof $5.0 \times 10^{-10} \; m$ 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 endhj8rd a1d3t*as of a meter stick. Find the electrical potential for the centatr3h j *81dader 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,s6i:6gb ut)b k 0). If the potentiks) ugb:b 66tial 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 -2.0-nC charge is(gzevy a)icxh:h 06g,i q,i-j at (3.0 m, 0). If the potential is taken to y )-0qi,6gghicz,v hja (i:xebe 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 (0l oy bb-y dopky+e 682bw :/2wm:yw-op, 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 work required to bring a 1.0-nC charge from infiniy2bpy:o y bwolo ek -26yw/w:8dp bm+-ty 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 sihu8:/*ohx*lnt farykk /..ccxh c ,2ades a and b. What is the potential at the center of the rectangle if qn.hkfh2u x/okc ahlr:x .**/ tcyc8a, = 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;yyanfazq0 qhf8u57e*a(bz 4 in two diagonally opposite corners. In the other two corners are placed charges of +3.0 mC and -3.0 mh yz*ufez ;5 aqay(a nq7b804fC. 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,n zp2lur9-zgb; .mijslh;( o/ 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, eac d(u:/ 6d3jjw woxi 3buh /+zcj-ys2chh of 2.0 mC, at the corners of yu(h2+j-chju jwbsz3 // w:di 3co6xdan 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 capacbqx0i bh )afs6ntm+s*1j,:x q itor when it is charged to 100)j* afx1+ x6m,sq:0bhts ibqn 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 plates of are+i3 6ce)hrd v76opu pia :kk;ra $0.50 \; m^{2}$ 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, ayw3hjk8k v7pj2nsjsv bl6-yu16p: zvo5-+ oj nd the plates are separated by 0.050 mm. If the capacitance is 17.3 pF, whhyoop7lj 6 ns8uk-v2v 1py:5v+- k6j b jjzw3sat 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 haq/j(tjx /9fu,.otfvy (b st ;qs 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 s+pw(v is)ae;vug* qm, eparation of 5.0 cm. If the potential difference between t(mw ;g)s,uve *+p viaqhe plates is 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 .zi5tc1xymqa) o +mf3iy 7tj7is connected across a 100-V battery. After the battery fully charges the capacitor, the capacitor is immey7i)yzx m 7 ia3c1.5 fqttojm+rsed in transformer oil (dielectric constant = 4.5). How much additional charge flows from the battery, 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 s ;j.vdgclq j4/tored in thec;/4v.d qlj jg 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 energy stored78fuzcxs;v t i-3m yb, in the capacim-usx 7bt;v c, 8yfiz3tor?

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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 capacitorqy/jzql8zw/:ayl7x+h* gve gl+ x(;u when it is connected to a 12.l/egyzy8w+(g / +lauhql: *x jv7zxq;0-V battery. 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 nsb,65+k 3m)z; we ibfpza/apis charged 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 tf( 8iygklg*0mc/ f5kof 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 nr8/ttxmp1w ro 915bg 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 consis*nqocobq -0g8kjhg v73)gy ( sts 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 constr;0++ymv 6 bbz y)mwlxmucted 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 is constructed with p1t j;aeziz )u9late 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 0x93d;u*m 7yojs ebhwa 50-V battery and becomes fully charged. The battery is removed and a slab of dielectric that completm h 9de0w;3y bj*sxuo7ely 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 becomesd2qc9uk*1/tmrz; y +om f san5 fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inn1f5m*czm2s orq +9 /a ktydu;serted. 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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