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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+vu pgzarp97w)1 0h al 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 coulomb4q1ljtuh-b.*u 2; z z z.uezjb 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 ar3 euziui4 hd/ :fot+/se insulated from their surroundings. Object A has a net charge /z 3odtei:+fhiu/u4s 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 the direction +hoi9;b ap6t8 ph8l;gp tmu1tw/ uw9j 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 opposiggl p7z0 u1p 15i zcp1s-fpi+pte 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 con1haeumiio:w 07r. o(bducting 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 rest to a speed v by a 500 V potential ru cxoojc7s z, )n7;tk:y6ej.difference. If the potential difference is changed to 2000 V, what will thzj x 6:kos,)ct.u7 ny rc7;oeje 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 ip3hohfm:1q0z.e 4*u +vpfvoas referred 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 p l yvy e49mnj4v8)ne0a5or gf;oint A to point B along an equipotential surface.e94 eyl r5gfm 0an)o4v;8vjy n

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surfacegwx cs1e 5c56z 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 particle v;c8rznt6mk alw.r;3 carrying a charge equal to that on the electron as a result of moving through a potential difference of one volt is referredt;w6kvrz; n.3 8 amrcl 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 unitvr; xt hujidk16/ 3n*6d tc1cd 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 correspondse*9v3z4czm3ddtla5 j to

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potentiav+lc8sn(qi pn+jg:1 cem gv0 7l at a distance of 2.0 m from a positive point charge is 100 V. What is the absolute potential 4gp+70 (cnne8vcj + ig lmqv1:s.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 distance of 2.0 m from a negasaot( 2ybo52f0yj)h ,4 vmdiative point charge is -100 V. What 5fyyjmo 2ia d2v(04,obah)s t 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 -zt5lh uih10w * t51a2bnucnwV when a charge of +Q is located at one of the square's corners. What is the absolute potentialz21witacu u0w55n*ht-1lh b n 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 sc5hs)m0gs ) 7ez9afhdquare is 3.0 V when a charge of +Q is located at one of the square's corners. What is the absolute potential ) c7h0azgs5fmhed)9 sat 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 womlxf)erjl4) 7a,c2f 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 k+.nhczmp7th(e*kuq +1tq ,bis 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 except thr7,5*sglffo ky39hixub/w:r at one has twice the plate area of the other. If the smaller capacitor has capacitance C, the larger one has capacitancxgsf*l w y br,ko/5i9u h3:fr7e

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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 th8n1otzo3g 9 4 mti4cove plates is doubled and the distance between the plates is halvedizm91 4o8g o ttv34onc, 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 8 tsa5 yongf60capacitor 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 potenti0ns6g ta58foyal 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 bog(2ix95/k7*uz s1nlmj fyz( + c2vu*jlf kbdetween the plates of a given capacitor is weakened, the capacitance of that capaz(jvb/m9g2fjlyfs c*ulk* n+i( 5o1z 7xdku2citor

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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 paralled mb8 dj70jba;l-plate capacitor are maintained with constant voltage by a battery as they are pulled apart. During this proceb0a 8;7jddm jbss, 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 constv s2 st 63krj c(yxlz7o)v*e6sant voltage by a b )72sor(j6s3ze6t*lv vxsyckattery as they are 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 e) aw xp0ucgc63*gfo6pvmz .3* jw5hpd1lf*ebetween the plates of a capacitor wv5gge*dfa*3z0clw px jf6 p3c opm1*6uh.)e.
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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 betwxz ;1im t;fr(jk kw3q/een the plates of a capacitor. What happens to the ckwr3kqt zmx/(;1 j;fiapacitance?

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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 thequ4 il/ymm, 2a plates of a capacitor holding a fixed charge.yaq,ul m2/i4m What happens 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 connected to a ba ,n5p m: 7:xx7ydf0+zykiwzfrttery and becomes fully charged. The capacitor is then disconnected, and the separation between the plates is increased in such a way that no charge leaks offxr7 yy :d7 z0+iwzn:fxf,k5mp . 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 capaci1.5 vype ayo.w8.mn hptor holding a constant charge causes the energy stored in that c.n ayeho5 p.ymwv1.8papacitor 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 causesz5k. b7ku fo )z6,rndx the energy stored in that capacitorzfk6ndx7zb ru5)o.k , 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 of charp ds.a ;(0 il pnj,cc,sxzi41fd;.e bmge from point A to point B. What is the potential differenciz;1acjs ,ilpcen.dm(. 4xd p;,b0sfe 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 poi:jgd6jije ( 4mnt A, where the potential is -50 V, to point B, where the potential is +50 V, isjigj:mdj46e (

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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 potential x3+qpgt;o1 ayu3 /l2 5jd grpzx4gge 3ygm/a1difference of 500 V. What is the king+1qj m/au3t r4p;xgye/x23g ogzdy3 5g pal1etic 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 accelera *j3nzp7+wg 3koqrmn 2ted through an electric potential difference of 500 V. What is the speed of the protn* pqrowg 3m j+z27k3non?

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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 poten)ncnfovw::r;6p *hrgn lsdg/: n4zz 6tial difference of 1200 V. What speed does itd f)g6h:rwg*/ ;nvspo:4n z: 6zrlncn 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 in mnm9y 5s wcnm1-6krad,oving $8.5 \times 10^{18} \; electrons$?

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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 acceleratedy (w. h*srb :wj)btj3 tfeak3+ through a potential difference of 500 V. What is wws 3)eby* +3rt bfj.a:jht(kthe 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 charge of 20 mC. The object is accelerated fro5e(a eum tbuk;0 )adp0m rest through a potential difference, and afterward the ball0 u u0b5e)adepa(t;k m 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 maintainm.cz- j/zfh:js the electrical potential difference between two parallel metal plates sepj /h-mz. zj:cfarated 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 magnitude of :tzw2uf 2ts2j-6yx peq hmn .)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 x = 2.0 myz 2t)qf2 :uwne.2- hmp6js xt?

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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 towar,4+q cq f*ncr2ii0hzh ,)r( m-unihpvd the east. If the voltage measured relative inf(4mvicp)2+-u q hcn*zi h hr0,r,q 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 electric field of vkc;m+wol6gwn 51 8sem,1 vz mmagnitude 3.0 V/m. What is the changn1,cm+51m gowzm6ek v8ls; wv e 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, separ;nvn )zh5r80gn k dxv7ated 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 k 80;nd75)r xhzvgnvnis 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, a- - lt8wjfnu(gcco6oz4ep y15cmfb2,re connected to a 12-V battery. An electron released from rest at a location 0.10 m from the neg tp2wo5-(mgojfezlcucnf8,y 14 6cb - ative 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 8a5j 8qdj +ympelectron released from rest at a ldjj qy85a+ mp8ocation 0.10 m from the negative 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 o/: 4x s aaul5yr8 4-srvpom)mtoward the east. If the voltage measured relati vo:a oymrp)-uxslar4/ms4 85ve 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 elec*jf0 mreb. 6lptric 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 south of that p jf6l*b0.erpm oint?

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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 of 12 V, it willsqsoryg1d :iiii ;30-8:cnj p acquire a kinetic energy (in tygii i jos:p80:csq ; -31rdinhe 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 al2w3-1sgq1o5 jf2hx ki*day ct a distance 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 mem d9is,d5 0jviter stick. Find the electrical potential for the ce i9m,5d0vsi jdnter 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).mj*; ig )t4gmm If the potential is taken to be zerg *mm git)jm4;o 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 (3.0 m, 0u/ (;tqh 2va8i7:; :5lfa obru6z zs,bkwpmvr ). If the potential is taken to be zero at infinity, what is the electric potential energy of arrz8 m;u b ; bovw5u7v:za lkt2fs(a:/6,i hqp 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 zo5 m 9q0urjj-charge is at (3.0 m, 0). If the potential is tjzjr 9uqm5- 0oaken to be zero at infinity, what is 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 : )r7pz p4q7mz qbgnt/of a rectangle of sides a and b. pg7p)qbn /:4tqrz7 mzWhat 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. Charges of +4.0 mC are prs r 6mdg zv-2oc,qlp+2n8ou6 laced in two diagonally opposite corners. In the other two corners are placed charges of +3.0 mC and -3.0 mC. What is the aoqmr2ovd+8 l- 6 ,upg2z6csnr bsolute 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, majltp 8/bsa;o esyd07 )ss $6.64 \times 10^{-27} \; kg$) 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 mC xj.ihdnc x z8/*;h36fj aczb9, at the corners of an equilateral triangle of side 2.0 cm9*cj;n6czi/ 83 .b jzaxxdhf h?

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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 capacitor when it is charg141qz+rrjcv76dx g;abl+8sto ft m8v ed to 10atv1 z xco +v7dm 8 sf6+tq81r;l4jrbg0 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 capacitorv jj j3m zjo1earu2 ep:gz8/47 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 ieet2oe l6x0fl . k,4nbs filled with air, and the plates are separated by 0.05n0 e e,x.klfe2 o64ltb0 mm. If the capacitance is 17.3 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 of areo ;c/qmb r04t,h ;egu6t9r*ytc 2ovswa $0.20 \; m^{2}$ 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 capu a-- bv(jn7soacitor has a plate separation of 5.0 cm. If the potential diffu( son -va7-jberence between the 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 is connecte*o59s mw c k3s tz:16xq/on8glvepbd( d 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 additiosk(zq l*5pg9v1ds 8wo6 bc /3o xmen:tnal 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 store3sr ez.po (huyt4b63i d in thep(t3u 4y.rzo3 6i behs 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 c lpt4*t abogjc;+ x;gp gc7rc.(xb)6papacitor. What is the energy stored in the capacg p6t+x ljag p(r; 7xb*t.c ;cpo4g)bcitor?

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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 flowsg 7sm0jhe 7hjkdp3d 0: onto the plates of a capacitor when it is connected to a 12.0-V battery.kg :hd 007ejmdh7js p3 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 is chart82ssm,z gsbxw*z1pd *;(cg k7y0of xged 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 p rmnphjo6 3.cd v.qj)lm5 7wx,lates 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 arm.qu 9kt4)of.lfr6qvz1ao 1k ea $1.5 \times 10^{-4} \; m^{2}$ 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 conzx fu +od./z0tsists 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 jqyd p0hn6ak pqk0q,)e;m; b6plate 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 constru 4+ 32gofxz9eg yi/opwx q95tscted 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 eh9xx;a (l3)lh yto/s 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 dielectric has a dielectric consy x oha;/l3h )e9l(sxttant 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 beclyo;(3gbh/.9a et+po)+ jq1n nmqnmd omes 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 voltage across the capacitor's plate3 t+ao+mjp(q9m1.) h;bdlny/ oneqngs after the slab is inserted?

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