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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 isspae*;bb x29*;dp0. sfuhv eew law( 8 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 rs3nr iiap* b;v f0sf5jf 67f+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 are insulated from th; lib/ (of.ozks c,r:reir surroundings. Object A has a ne/ozr:l,f bsirk .;oc( t 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 the direction of the electric fiez jxu3rim rrko,,k-:.ld

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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 lak:l 0wj(bp.0)4/ sgtn4g6m mbsynjfield

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Several electrons are phszcwkf.u3y2y;7 ge 6l3rq,wlaced on 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 adn69vvvcn7yd0 l p1zm ly8 )s7 speed v by a 500 V potential difference. If the povpc7y6vndms l n7)9 0z1 vld8ytential 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 iswvcvw/svrtjn6x f-4(u5a w3 i629x u c fa-;ua 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 point A + w)z6ji.dc,;zj :d ypw84qw6 smzwke pgwc;9to point B along an equipotential surface8w:;)cepw ;km qz+4jw.d ,z w6jz9 sdpiyc6wg .

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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 bet1( 9o7ir eiozdz7d (. kjs6lz

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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 cef ifm( xs*,d9arrying a charge equal to that on the electron as a result of moving through a potential difference of 9,(ffei*m dsx 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 uk-xmf.k )h9ppqfd+r5s htp /lq ;lu, .nit 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 cor f pj3v5ap7rj0responds 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 ofn :y qg f22xdvw1zd:s xs2ql3ue /w5.c 2.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 m away from the sadx3en d1f:q/s x2gww:5q2vyuc l 2.s zme 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 distancc 4p ,recm9e+o/b)0ij dvvul8e of 2.0 m from a negative point charge is -100 V. What is th cld8cr9b,ei)vp0o/mue4 +vj e 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 0 -jb,hb8t 7hse lwr-d2sm ej6a 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 corner, 7b ee-ds jj2lmsr0b68ht h-ws 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 when a chglcv qhh.y9ccci ,q8i(sz o4f/e07+harge of +Q is loiq, y7 9ehoq c 4hicc.l80fhcsg(/+vz cated 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 alwaygudv) no:1q4a s consist of 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 aaz,/0qai si k1(seem 4

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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 p.h8q 7- dtagj)xfx-hp,xddj q3(ke( hat one has twice the plate area of the other. If the smaller(xdd-a eq)p7(xd qh. j gp3j-,8x ktfh 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 the plates ist0 aauodp9hv :n+7xfj4w kz 7h6s3xk, doubled and the distance between the pla,: thu pkwx fhjo7v970xaks6 d+n43 aztes 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-plat7czd ; 8lo5-wk.als) 2v4knhzd5mol qe capacitor fully and then is removed. The plates are immediately pulled apart. (With the battery disconnected, t;28l4lloqo kzn7h.m5s k 5w-acz)vddhe amount of charge on the plates remains constant.) What happens to 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 between the plates of a giveni76p18u0nv h0t sf tel capacitor is weakened, the capacitance of that capacit 8tn6s7i eh1pvt0l0 ufor

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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 constanrp4xih mqq3w9 b 3;tfy10wt.ct voltage by a battery as they are pullew3y bqw 3x9 i r04pcmht1.t;qfd apart. 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 capp1j ) o4tys8etacitor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the electric field during 48p1e )tos tjythis 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 dielectrlo o+.u ;0 oz+nj3. kg,uzk n:pv5ginxic material between the plates of a capacitor zoz :. ,ku+oin; o3j lnu0vpn5kgg+.x.
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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 asw5rao oh9itl -j/y t5*(b ni*r paper is placed between the plates of a capacitor. What happens to the capacitancj5b9r-a* yi tilho5 r/(*wnt oe?

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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 plates of a capacit8gp y96rpz w 2c3khz:jor holding a f 28h3ycz6 zjkw:9g pprixed charge. 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 connecte;te8gbf .3egj d to a battery and becomes fully charged. e8be jfg.tg; 3The capacitor is then 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 capacito8 )su9uui0tp cs5k:p a:kxix .r holding a constant charge causes the energy sto:ksstuc.p 0ukx:ua59 i)ixp 8 red 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 stored in thatq q4nol pjz-oyvy4 85))ybr9p1va 2 ut capy 2tzl) onypo-paju vr45vb184q 9q)yacitor 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 1cq f6zkux( u*o hobzi59u13r1 : ve7pz ha32sg0 C of charge from point A to point B. What is t oqz ih6ou271 e 3* 1 (agz5cr3zuhkus9:fpxvbhe 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 point A, where the poten+; 7.2xjc1t .p0 k4 .avwctiwyyl fsfgtial is -50 V, to point B, where the potetg..2ji70c1ywl a.s p+fy;4cvk xft wntial 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 el4+ 7s rc8igf7 t4aqhtxectric potential difference of 500 V. What is thg ht4 cx+8i4tf7rsa7qe kinetic 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 thro2gqhao0f9t hiqg(ep 7p *gi9+ ugh an electric potential difference of 500 V. What is the speed of tgf 9pt* qh0(9oqgh+7p agei i2he 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 differ+u:9np gq4:b8 tk pibhence of 1200 V. What speed does it acquiret n:kiphbq4p u8b+:g9 ?

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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 cg5hp*n ,,kei:x mbs s:c5r .j)l( p8unfz3e tin 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 c:ww7aum92f u difference of 500 V. What is the velocity of the electron afterward?cw:muf279 w au

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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 s2;xdzv (j,lo charge of 20 mC. The object is accelerated from rest through a potential difference, and afterward the ball is moving at 2.0 m/sj( sz,xod;2v l. 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 differen7i otnb: 8x) igu)ex/ice between two parallel metal plates separated by 1.0 mm. What is the electric field7i/o8iub)genxt)ix: 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 pa-x 9+py w(j34givulur :s*pe orallel to the +x axis. If the potential at x = 5.-pueojyi 3(+s:4lvgx* w ru9p0 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 electric field of 50 N/C directe 49hpxy 4x-dokd toward the east. If the voltage measure4-x4k y xpdoh9d relative 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 :x7k4kw bo h-relectric field of magnitude 3.0 V/k7khrxbo-w: 4 m. What is the change 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, separated by 0.20 m, are connectedm0 zvpz5+k7hd 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 tmzd+57kv h p0zhe 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 hw; ;. ubhn.lzqv*( sab d.2to12-V battery. An electron released fn. ;t2(bq olu*;sa .hz hvdw.brom 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 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 lw i00 py6oa7rbattery. An electron released from rest at a location 0.10 m from the negative plate. When the electron arrives at a distance 0.05a6 y0riwl o0p70 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 toward tgwd +s+1if(a;f pysi2 he east. If the voltage measured relative to ground at a given point in the field is 80 V, what i+wg ds2iy( +ia1;sffps 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 5)o4nn cjzkt+5 (l(w f hzrjf7voltage measured relative to ground at a given point in the field is 80 V, whatjl zz5(+thofwrn4)5 k (cfnj7 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 differc c*u 1eu)),hfaleyk;i*zj;l ence of 12 V, it will acquire a kinetic energy (ie1lu*e;zyh)jac ;ki) , * fculn 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 distkpz7 zq nu/7)5i fuh b5mly)*0*ud olbl*q0pjance 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 eh(fh -m g2*rpdnds of a meter stick. Find the electrical potential for the center of -(fpd2 hhgm r*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 -aqb9qg g3ay+-j 3vg vj789zov 2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric-oy9a3q73v9gv8g vjg + jz bqa 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 xf2 -v jgv+w 1aw+ima5charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potential energy of fix 1+gv-2wm 5vaja +wa 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 charge is att:, 3el6fkuj tuv 8 q9vjad2.w (3.0 m, 0). If the potential is taken to be zero at infinity, what is the 6w3jtae.qv u jf,l :kt8d2 9uvwork 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 p28bq d*2mirqt ece(e 4laced at the corners of a rectangle of sides a and b. What is the pomc( e 2*4qreteqibd28tential 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+xwre-fa -w ydcp:rsbn2n8 .o+tz-y . are placed in two diagonally opposite corners. 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 -.-yny+ .zan:8c xwpr-oftrds e 2w+bcenter?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle (c3p6+u xzzi5y fharge +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 nmt 5 8 1g akvcrn eb.:9vtg:ka+8ewde2ecessary to place three charges, each of 2.0 mC, at the corners of an edcav :bk.ate5km 1wg8vg +9t 2e8enr:quilateral 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 capacitor when it is o(xsc*5e/ulwdm5w+ r8dt5 z2 gl6 kke charged to 1005+k*2l8w l5(reduc/5w xd zsmkg t6 oe 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 ar8on5ggf.b9 nb ea $0.50 \; m^{2}$ 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 capa5 erz.0ihvq 2zfdt /q(citor is filled with air, and the plates are separated by 0.050 mm. If the capacizqe0zr.5t h qfv2di /(tance 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 plateszaf3ev/.dx: p/pyyo ) 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. +h pci2pmnq- separation 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 electrnpqc mi -2.+phic 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 acros2s aq wcarpg1ct8)/9ds a 100-V battery. After the battery fully char)9sq 8ar/ awptc12cd gges 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 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 placclo9p)ntsh4 57x 0 w/ba 7lpgked on a 15 mF capacitor. How much energy is stored in the capacitorw 5 gp 9ckls ol7a/p47t)0bhxn?

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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 capaciva*/8ke bg1 tcjz b(;ltor. What is the energy stored in the capaci 8e(ktz*jv1b;cg/l abtor?

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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 platbu.j ueprg2s*w6v+s2/ rqm5 7 sq li7ues of a capacitor when it is connected to a 12.0-V battery. How much work was done in charging this capacitorwr5 72su uj /qiesp+*brgmlqu26vs7 .?

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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 stores bls .2udcbt.4$2.0 \times 10^{-3} \; J$ 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 ;a xk )dpc73vtconsists 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 czkgvo:+cs0za 5i 7m- fn)s2i vonsists 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 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 consist*j+yhwqd tqy-kfl e/i((k nrx7yr * +*s 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 isyi1g,jwp hj.ux2md)qb/m6v miv) .(c 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 wo8ekty)q 0lw3p8n cc+wzw;. h ith 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 battery and beco7d6otnt1s an2mes 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 diel6o nd7ns 1t2taectric 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 6c4up,hb9e m*. nwojg q 2(tbta 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 ditmq69wnpco.,t (2eb4 hg*jbu electric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

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