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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 +vuegi,+ ( nf* 5ansvlvector?

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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 dnc su.yy+8 gj fod1 l +m;-voz-bcc,)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 fromxgs+;v0 sum0u their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at a higher po s+;u 0um0gsxvtential?

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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 thmbk 7by r h9zcbpxhv:je:37:2w 8mu2te 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 i kgj. h8-+ajhkb h,vpv7+)mdln a direction opposite 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 plrcflrn-qrikn4 9bqw1- +e3i+aced 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 a speed v by a 509p:pm mnt0u lkgub92 )0 V potential difference. If thmkm p9u2 :n0)gtl9p bue 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 are at -yk9-i5 fzq f1i7befmthe 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 moved from point A to point B along an equipotential s pn/ue4xw)b3wrf8 rsbshrj7:gl;kl7ed4(n( urface7gn 4ujr/sh3pnwekxl dl7 f:(r sb8wre(b); 4.

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surfqh :j4 bntj3hg8(m( qzace 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 carry p 12/b1zh oswy)ocko,ing a charge equal to that on the electron asz) bo2skoocph1y ,w/1 a result of 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)-ell xmri1jwd4, e:7fj) 9zd d p3jrd unit 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 corres-ahujs*w p ky5.k hvu/oo.n34ponds 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 d5th5x,xydv4v istance of 2.0 m from a positive point charge is 100 V. What i vv,d h5xtx5y4s 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 distance of 2.0 m fromb;l96iakyn 7cj mvx4f09)8p+m con sz a negative point charge is -100 V. What is the absolute potential 4.0 m away from the same point charc6;l sck bm90 y9z) fx74pmna8oinjv +ge?

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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 h actq2rt/z*ll 89 ,dr3.0 V when a charge of +Q is located at one of the square's corners,9rr2t/lq dtaclhz 8* . What is the absolute potential 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 square is 3.0 V when a charge k1 a42fl1+8 q:pqpo-2mxdiwbhd: iiu of +Q is located at one of tdw pkiqo4i+fxi8lqh2- u: 1 a:d2p1bmhe 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 rh62b,2umnd vtwo 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 a0bad lbygx:l(r) 2xw9 saqqy4:do0 2c

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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 that ipc6y-vw/v,j one has twice the plate area of the other. ywj /6v,-ivp c If the smaller 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 ojlx i h0p64 d-gr2v6aif C. If the area of the plates is doubled and the pvj2 xadr64ig hli60-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 capapiw9lip-9,lh citor 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 h9lw-p9hp ,lii appens 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 r0hj+lt4od5 b7)zhokpu6 r6. slb:e cvoqb4+plates of a given capacitor is weakened, the capacitance of thatr5+klb )bt doo04jprcvql b.eo6h hus+: z764 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 constant voltage b j kbzh;u/kw3 (1gfzx8y a battery as they are pulled apart. During this process, t xg( 3wh bf1ukzzkj/8;he 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 constant v3)dt ix3olypnlra,clg m53 1 2oltage by a battery as they are pulled apart. What happens to the strength of the electric field during tm lxc)ol,3ynilt 5d13rp32 ga his 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 plates e 6 mfhhs2kj5 a;30wpuy.nq9g of a capacih6 k3m 92hqg.e5uj f;n0pyaws tor.
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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 plates o/zt z2q(fv i;s +f4klvg6w*cs eo*m9 ef a capacitor. W zs9qoz 6wme kl2+ *s ti;c/vv*eg4ff(hat happens 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 material such as paper is placed between the plates of a capagk+3 g z7s z 7/mm0v6alsrvnashs ))k7citor holding a fixed charge. What happesmgvkrag7+lzsh3) nsvm s7z)6/70 ak ns 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 fully charged r3swkzw s21lw9f*f m1. The capacitor is then disconnected, and the separatismf29k w wlf*1z3rs 1won 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 ct t zt02bt 7b;sh*.maronstant charge causes the energy storemtra .t;20 h*bbs7tztd 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 c:7 s:vk3 ku bexbmvy)o62r 9vcauses the energy stored in that ca)x627 vmv:kuceko s b3 :9rbvypacitor 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 1/byg.xi/n*2zj a:yuy0 C of charge from point A to point B. What is the pj.2z //a u:ixgybyny*otential 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 potential is -50-bgpd:4 8p xbn V, to point B, where the potential xpp:b8-b 4g dnis +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 an2rt8f (kq+b gkc8y()5p;olvlj3g; kcw p f,qq electric potential difference of 500 V. What is the kinetic en ;,l )qt(y bc+fr88wjvg 5qk;kgolpk(3f2qcpergy 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 electric d(5u(7 onnu6:ji3aqq- g tggvpotential difference of 500 7qtdj n3v(( au6q5-:gogniugV. What 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 potential diff)q ns :n.ab omo4w(m8verence of 1200 V. What speed does it acquir(o) 4 qm:nbswanmv.o8e?

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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 movin d0,lp,j5k y q4hubyxg4fr:v;h( gv0v g $8.5 \times 10^{18} \; electrons$?

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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 difference of 500 V. Wihdi1bsoly)- mf jcv/b7u;3 8hat is the velocity of t1ju l bd-vbh ;imyscfi/o)783he 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 rest t6 t *w0:a 1so,s5t1jfqfoi ecnhrough a potential difference, and afterward the ball is moving at 2.0 m/s. ef0ni516jwo* 1t tcfqs ,s a:oWhat 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 diffeoum 94n-a: wlirence between two parallel metal plates separated by 1.0 mm:w a9u-l4 nmio. 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 z n4yz knq2 ;za5zq hxv/9ff75V/m, is directed parallel to the +x axis. yna4h 9x27zz fqfzv5z;/ 5 nkq If the potential at x = 5.0 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 directed toward the east. If the vodr2 m du.e :.rpvtg2j-ltage measured relative to ground at a given point is 80 V, what is the voltage at a pt2v2jm .d.- u:rdeg rpoint 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 fiel,axcnqc5qq+ t5ux8y57* ukz gujsl*:d of magnitude 3.0 V/m. What is the change in kinuyx*taxzu k 5 cjq55q:c *gnu78+,s lqetic 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 battereinc, 8nt;:e vuig/ 8cy. An electron released from restvtinc8u ec;n:8 e ig,/ 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 connecte q,5 v0:p 0vtw0vnulfkkgjw1 )d 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 ,0vl:0p50w )wqg kjfuk1v vnt 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. Av;8w c 3sq1p;gvw sa:sn electron released from rest at a location 0.10 m from the negative plate. wpqv;vs g;1ascs 3w: 8When 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 fiekiv r 0yd:mh:9 1ajtss.w7n5bld 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, wybsn:017h t kmdsa.5wv9 i :jrhat 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 fie4dv:np 0 ip7wl en5tagi,z:s aul 4/p2ld 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 voltan44u dg7 :v/l5epti0ais,lp p2w: nzage 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 throubjb5h(6 g7w41egq :d 8ygfaffgh a potential difference of 12 V, it will acquire a kinetic energy (in the absence of friction(fgf6bbjg ywg:5h qd 81f 4e7a) 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 distancop;xzwkt86/c e 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 ar-xfy2u9t jhdlw;pb:lt0v :*c e at the ends of a meter stick. Find the electrical potential for the center of t*huv: c29-jbdwf; l0tty:x lp he 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 atz7 km7s+rjvyw/y 5e7l (0, 0) and a -2.0-nC charge is at (3.0 m, 0). If the potenti eylwk7 v5rm7jsy /+z7al 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 at thrq7y3,:ok p/t2ho k(3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potential energy of 3k2rk7p qoo:t tyhh/,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 -2.0-nC charge is at (3.0 m, 0). If; x;n qbo(s,qzujvd9*xnj1b,ev fl)9 the potential is taken to be zero at infinity, what is t,lb9zusvn(x e;dnq oj j f,*x)vq9;b1he 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 +q69kk- zkwn sh; are placed at the corners of a rectangle of sides a and b. What is the potential at the center of the rectangle ifkk;sn6-w h 9kz 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 +4.0ox/:2-ub si8ua l5swj mC 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'ul isxawou2-j5 b/:s 8s 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 +23-c ykuf)c/ wbe, 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 teva9q)kx qgxn4322xr7;o bd po place three charges, each of 2.0 mC, at the corners of an equilateral triangle ok 9eqvb2x3 ;xnrp)oad qgx 427f 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 pltp +idyd+oxd7z6j .al+nt 1 j)ates of a 2.0-mF capacitor when it is charged to 100 V6ad)z do +ji7j+lx pntty.d1+?

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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 platesyn)ilgjq 7 p6f8) yypv wt2y:/ 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, and the plates are separated by 0)kp*fp0 tl8dcbds9 d2wy/o2k .050 mm. If the capacitance is 17.3 pF, what is the plate s82 dbwdpfl0 *cpt/kyk2d9o )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 ofa6gg 2y7s5 m:ulqi s6i 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 e9.l; p1ec.lzzzk wc 5the potential difference between the plates is 2000 V, with the top plate at the higher potential, what is thecce91z. 5 pezl z.lw;k 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 ba uw i9ufx9;e6mttery. After the battery fully charges the capacitor, the xum w 9;i9ef6ucapacitor 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 plab5n6 epb.bq;k ced on a 15 mF capacitor. How much energy is stored in the capacitor?b bkq6.5p;be n

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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 capacit vj6wy ; 9cd23v2kao+4melvytor. What is the energy stored in the capaciv ma 2wcl tejyyv 364ko+2v;d9tor?

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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 con6id :td5.mkyyiy65fbx 3/ l* (fhrnc znected to a 12.0-V battery. How much work was done iy5:y* i6 6dffr5mc lntk3 bixhy.zd (/n 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 thsm/p: )fv-)zphr vinh :in u3+at 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 :b/ uo*sox( f-bbk)8:ivimn hlates 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 consi:r pqyf)he y:2sts 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 capacr 9h f 3k4yozdkdrg+*a2kp*b1itor 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 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 plate area ou;5a9o bhsc s;f $0.40 \; m^{2}$ 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 c qa-ax3a+,51vhtl niponstructed 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 tvu z7l4ck:r) ro a 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 constant of 5.0, what is the capacitance of the capaciu 7rcrlz4v )k:tor 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 connecjdde q8t *v36fp0lym 4ted to a 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 3d86pm0t qvlyj *e 4dfdielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

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