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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 ib l9ue sf4ds12s 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 /3ddstpp jug u2*ym(8is 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 areqg ecj3 h*p60mxuo).u insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. *cq )xu6j.u3hoeg0p m 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 didmghjifww0 ylzb i/3 qf3+5vzp6s3* 5 rection 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 oppositpd8w3w u*1wkqn ky: /oe 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 j 3l8 be(a(broon 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 rest to a speed v by a 500 V potential 3pggf ukw+*pmwk kxk+bz)/ + +difference. If uf3g k+++m/*w) p+w pzg kkkxbthe potential 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::hqvg5t fm u nqkn7645hsix : are at the same potential is 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 movyaoswyhb ti2 0927ai:ed from point A to point B along an equipotential surface.s9tyy2biw 27:io0 haa

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surface mub+bg e;c i6rjn0 yiwt, 72h7ag3udrq,st 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 carrying a charge equal to that on jzdij9h6:r:y the electron as a result of moving thro96zjdyih:jr :ugh 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 uniteq eg(vnb, s(* )xky*x 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 correspondsthaw //.ap*mu 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 08wn-*l-amt6v haji 0nrwju: from a positive point charge is 100 V. What is thei j8hmr:- 6atj0nl -0 an*wuwv 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 distance of 2.0 m from a nen5khcm ,v m4i1gative point charge is -100 V. What is the absolute pote4kmvh5 mn i1,cntial 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 acl-8 87g fh44ad/ppdv /xmtui 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 each of the other corners is also filled with a charge78-h8dla4p/u/g m fci dxtv4 p 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 charge of +Q dy5 wv93 ly3atis ly3dtlayvw35 9 ocated at one of the square's corners. What is the 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 ch ;8 zhwt dxmu y*2ydk(.tvp67sb1 ju;varges 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 :c 6z12baz mvf7z h0ora

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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 thatubkns xxn 9id24:285bfmgl 3v one has twice the plate area of the other. If the smaller capai mk9g5bxub4 8f2 lvs 2d3nnx:citor 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 b 0x 6qyxj.mq:the plates is doubled and the distance between the plates is halved, what is the new cay j:6mxb.q0q xpacitance?

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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 dj+g ,n jt7u2bthen 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 asgn2,jd7j u+ tb 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 betw+ ho,,el hcle.een the plates of a given capacitor is weakened, the capacitance of c,ol +.eh,lh ethat 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 witwrsycb y4a6.vi c (74dh constant voltage by a battery as they are pulled apart yw4a c.vcyi4b7sr( 6d. 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 capacitor are maintained with cssm76hqj 4;b 8uj wf.tonstant voltage by a battery as they are pulled apart. What happens to the strength of tjqt67m wh bsf .4uj;s8he 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 dielev.1q/i+p: 1agdra ojictric material between the plates of a capa.1g1r aiiovqd/p:+ aj citor.
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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 ikd7e+hrrb,a ezd9 ,x-s placed between the plates of a capacitor. What happens tor zxd, ed7,- ab9k+reh 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 such as paper is placed between the plates6l5m 0hqxefg0 of a capacitor holding a fixed charge. Wha0x6 mqgfe lh50t 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 battery and becomes 2ppd m3ny3v,sxur9 g9b0; bjxfully charged. The capacitor is then disconnected, and the separation between the plates is ig9mnp 339v rb;jsbp0 ,xudxy2 ncreased 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 caus 3xxci2camno z )0(1 +vzr :9irnt:iuqes the enerciv+cx30am (iz r:u9xzqr1) t2o:in ngy 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 qkwytn5z/ybf01p8 n+5mk lg. given capacitor causes the energy stored in that capacn0ky1+5fqktm 5yg.p z/w bn 8litor 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 charge from point A to po/: vh/vwlf;u aint B. What is the potential difference betweeuwaf ;v :hvl//n 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 m5j9jj x0jkg35c 2qfzp;y2 k//klr iuhoving an electron from point A, where the potential is -50 V, to point B flzjx;i92c/g0kju q / 535jjkhyk2pr , 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 at rest, is accne.f du7iys 4/mf + k9jyr1:elelerated through an electric potential difference of 500 V. What is the fryy:j9lne.7f 14 d i/u km+eskinetic 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 accelerated through an elect+ixl-)cec: k pric potential difference of 500 V. -plck)+ce :ixWhat is the 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 falls through a potenm0 gi62m7y6ky zku e*htial difference of 1200 V. What speed emk*u6him02kg 6yyz 7 does 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 in m4oo9 i6yt uwjcr h7y 8wy,pwvwn2l:eow87a9,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 accelerated through a potential diffe r5b(w,cmd c+wrence of 500 V. What is the +wd wb rccm5(,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 from resmx l2x0dehp7 +t through a potential difference, and afterward the ball is moving at 2.0 m el 0+x2dpm7hx/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 electrical potential difference between1cmsghsv6u1nopu,; x7xi*d6 2hl um/ two parallel metal plates sepu/6sc 2xuhh*ovl7n gi 6u,sm;11d m pxarated 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 500 V/m, is directed parallekl89 ubj/ 9uael to the +x axis. If the potential at x = 5.0 m is 2500 V, what 9uebj/k au9l8is 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 ew2 iu4l9vm0pvov+eia7 w,hj) qxxw-9 lectric 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 at a point 1.0-jhu4i9l w0wvo,p7vw xx qmv)+2eai9 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 96q vt06/v4kdqh filq of magnitude 3.0 V/m. What is the change tqd/6v96 ilqf hqkv 04in 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, separated by 0.20 m, are connected to a 12-V brbw*qq, h2vjlhf9 +1sattery. An electron released from rest at a location 0.10 m from the negative plate. When the electron arrives at*fq1sh9bhw 2qjvl r +, 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.(+ /pfcv2a q:wl-hlo3c4 s kbq 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, how much kinetic energywcv (qca b42h/k-q lfspl:+3o 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 vudyl u+:)0bux+ g3hc 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 thg ux:vu0+)dulc3y+hb e 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- 4b:zm6 zxw;j2hugau 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 direc2z:-b6 4xau;muhjzwg tly 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 k8u w.xf r9o0l. 1vbmavoltage measured relat 1fub.rkaow9 . x0mvl8ive 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 uweqq o2r,:)izvl8f* potential difference of 12 V, it will acquire a kinetic energy (in the absence of* l2ev:ufqwoz8) i q,r 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 distaxbh2+1 1* ixc0n ta9ak o+ahsgnce 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 o(8k sqxu/zu i5ip g )xgn1n99 furrg0(f a meter stick. Find the electrical potential for the center of thrxsu 5( 8kg)9(z/x qingi1u9nfrgup 0e 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 atw,c3t0kmd ) u*jp8to y6oo+uml 7r-qnn7ze9x (0, 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 electric potential at poi)n djcto,w*tqrx8yp7omml u o e3k69+7-0znu nt (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) ;eupbz2h(5 z3 5dj qnrtmm3m(and a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinit5;brzmpd (53z3 q hmetmujn(2y, 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, 6+,z eumv a 4y:acglcl68r dl20) 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 bm4ul 6,elg d c6clryv:8+a az2ring 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 llahrpv vp+-) 9ew9n-a rectangle of sides a and b. What is th-lepv h-wvn+al9 r)9pe 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. Chargess ho+x8p6 w(ep,in bqi9y85 7/j jwgwm of +4.0 mC are placed in two diagonally opposite corners. In the other two corners are plagm/jypq+w jiw p85,ne7ho8i69(wb xsced 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 (chardp 53 knb6jhjb0w4. ihge +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 necessary th,t go 3*kly,vo place three charges, each of 2.0 mC, at the corners of an evk3l,* ohy ,tgquilateral 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 t:y1, jz ex:m7 vsf6etphe plates of a 2.0-mF capacitor when it is charged to 100 Vesj,ef 6 v tpz17::myx?

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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 platzk( ftphn07.vsm/x . hes 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,a;,w ee ;y;cp3,u/*lbmsb ut u and the plates are separated by 0.050 mm. If the capacitance is 17.3 pF, whaupcu eyasb/ t,;* u; e3wb,;lmt 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 area 3 e bw* k fo;oy1i-z1beqc3(ul$0.20 \; m^{2}$ 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 d8:m fab6 qk j3i;x rlo6ant*k4t. l+nseparation 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 elelx+3a bm6tl *j ;6dakf.iro8 :tq4nk nctric 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 battej/ejkk;;g wl 9ogq1 438fs nkery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constantq;gke /k91kl enjws348fgo ;j = 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 on9s/4bog 5zls w3.gp kq a 15 mF capacitor. How much energy is stored in .s4 5ksqwb39g z/ oglpthe 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.t7lq0 ju6h38oe ahak energy stored in the capacito hjqla.78uo06 3 tkhaer?

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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 ckkd+ d.ug-7z9uktj84de y0ua onnected to a 12.0-V battery. How much work wa8zgt9udud7 +ku04 y. kdjek-as 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 store*8bv3 /z f4ymu ga5vgas $2.0 \times 10^{-3} \; J$ 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 capacito0 vkur2q7l 2qur 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 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 platesn 8jgi6,5f bf*znhhh7 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 consists of plates of9j4w+xftul-jytq 0 :6pr3eus8tc (ixt3ni+n 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 capaaufqspe6k 6 k ,r79y6iru hy:3citor is constructed 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 plate.pax,0 p6crf ,kpstf - 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 batt-j1fwgey/uo / g:y1g olaof)*ery and becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. 1gaof o) /oe*yg1ywl-f:/jgu 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 becomes fully charged. sn3 p 7d)-voyq mf87dw6 v3p:tfmuvk8The battery is removed and a slab of dielectric that completely fills the space between the plates is ik8qy u f77ps83m)o6f3dmtp v dvnw:v-nserted. 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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