51fly国际课程 (51fly.win)

 找回密码
 立即注册

手机扫一扫，访问本页面

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp，上传完成后会在上方生成预览，用鼠标连续双击缩略图，或拖动缩略图，该图片就被绑定至本题，显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片，绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习：Physics Unit17: Electric Potential
本习题练习试卷来源于51fly国际课程 (https://51fly.win)， 为试卷打印版，您也可以在网站平台(https://mail.51fly.win/)直接 访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。 访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 75，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://mail.51fly.win/test75.html  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。
 作者: physics  发布日期: 2022-08-15 14:49    总分: 75分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月15日 14:49  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is not a vec9,t5 9bgvls1 tddm-rh tor?

参考答案:    
标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One joule per coulomb xx:m+jas ky9.o0e.v bis a

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two identical aluminum objects are insulated from their surroundings. Objeay5,a kbr9e08l zd* qfct A has a net charge of excea8,a k 9l 0yz5bedrqf*ss electrons. Object B is grounded. Which object is at a higher potential?

参考答案:    
标记此题
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 elecw iwiw4aek+7pv-:k0xtz + 4 zst.)gwhtric field

参考答案:    
标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For an electron moving in a direction o(ousnobnf2a8c4s 1 i5pposite to the electric field

参考答案:    
标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Several electrons are placed on a hollow conducting sphere. + k9f- r8f y1oum*s3t;tpt sihThey

参考答案:    
标记此题
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 pq6y+aya: x.hl otential difference. If the potential difference is chanhaa6y+ ylx. :qged to 2000 V, what will the new speed of the ball be?

参考答案:    
标记此题
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 referjmd2kb zhb8 e92h5u)e red to as

参考答案:    
标记此题
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 surfxc bj +5 lfl16/.2oske e+ebwuz1 1pgxac 6gc+ x/2k1lexp5oszw1b ul+j e.b1ef e.

参考答案:    
标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surface /tyc+ho *se )uz )ff/gmust be

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
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 6y)jhrqpy)7v(sdd+ r to that on the electron as a result of moving through a potential difference of one volt is refh)7vsryj y)pd+6q rd(erred to as

参考答案:    
标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The electron-volt is l; (5s wpry7okssi g-0a unit of

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One electron-volt corresgog4v f2o ;d+s sa y+;kull-8yponds to

参考答案:    
标记此题
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 from a positive poi /gei2b3adhul kebjsu+u,.*/nt charge is 100 V. What is the ab/ 3.e2du*j+,uba klgueis b /hsolute potential 4.0 m away from the same point charge?

参考答案:    
标记此题
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 m,bdkp*fzt * *vaf o/9pej5.v negative point charge is -100 V. What is the absolute potential 4.0 m away from the same point chatzp /e 5*ofvj* mp9vad,f* b.krge?

参考答案:    
标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential at the exact centedu;1 bjr *bn/er of a square is 3.0 V when a charge of +Q is loca n/rue1 *;djbbted 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 charge of +Q?

参考答案:    
标记此题
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 aor/ z 3mi;r,bV when a charge of +Q is located at one of the square's corners. What is the absolute potential at the squm3ra ib,; o/rzare's center when a second
charge of -Q is placed at one of the remaining corners?

参考答案:    
标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Electric dipoles always o tta nli)4j8s.r x8g5consist of two charges that are

参考答案:    
标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One coulomb per volt isfop i49ry tv(jnx : 4ouye83/t a

参考答案:    
标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel-plate capgbl6 8mqj 9pw:k ttn4*acitors are identical in every respect except that one has twice the plate area of the other. If thelt :tw4mk *b jq69ngp8 smaller capacitor has capacitance C, the larger one has capacitance

参考答案:    
标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has a capaci (5a*z l6kjpd8t. grwotance of C. If the area of the plates is doubled and th gjo (p5*d.l6azkr8w te distance between the plates is halved, what is the new capacitance?

参考答案:    
标记此题
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 then is removed.. c,v3rhknp *n The plates are immediately pulled apart. ( ,nc n.k3prv*hWith the battery disconnected, the amount of charge on the plates remains constant.) What happens to the potential difference between the plates as they are being separated?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the electric field between the plates ofed4 zo+(8 7(eu6bua obpvhhe) a given capacitor is weakened, the capacitance of that capacita vbp+hze(7e8( )hb6o4odeu uor

参考答案:    
标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The plates of a parallel-prm5qlhg-:mi 1tfesu 8a*m5 y7late capacitor are maintained with constant voltage by a battery g te 5ail7m58 yu1sh-mqr*fm:as they are pulled apart. During this process, the amount of charge on the plates must

参考答案:    
标记此题
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The plates of a parallel-plate capacitor ardre g54 1x4hn6 f;lq,kkuw(uhe maintained with constant voltage by a battery as they are pulled apart. What happens to the strength q4hu(rldn4;k1 uex gw k5,6fhof the electric field during this process?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
26#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State three reasons for addingg e*gv2sep9guj,8:v-pyen j 8 a dielectric material between the plates of a capacit9,p8gpy:g ne*-u sg vjjve2 e8or.
参考答案:    

标记此题
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 of a capacitor.y8u/e 2,p rl 3i 3yj dhb,0zgc:k/axdf What happens to rjdl8x2f/bdk :,0ay ucgzp, 3h/ ye3ithe capacitance?

参考答案:    
标记此题
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 awzocq-c ;e(q;fer.y , capacitor holding a fixed c,oqe-er(w ;.yq zcf;c harge. What happens to the electric field between the plates?

参考答案:    
标记此题
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 becomef5(gf5hygdpg u )rl5)u3p3 p gs fully charged. The capacitor is then 55h 5(yg prgu gg3pl u))dfpf3disconnected, and the separation between the plates is increased in such a way that no charge leaks off. The energy stored in this capacitor has

参考答案:    
标记此题
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the capacitance of a capacitor holding h 10 vpmgoxu1uj75qj4k*q wp *,f:z9tpk okb -a constant charge causes the energy stored in that capacito90kot- p1 j, ko 4zqgxqhpb*5juup7w *:mkf1vr to

参考答案:    
标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the voltage across a giv8*;nfbcm+po (d*.w xefl gz ,uen capacitor causes the energy stored in that capa*xed*8f.,u; o lfpbc( w+ zgnmcitor to

参考答案:    
标记此题
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 point B. Wha(telnqzr e.ze i*6 (/xt is the pz*(. lq eex n/t(ize6rotential difference between points A and B?

参考答案:    
标记此题
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 fro m3r jls/pjp:tkq:8 s6m point A, where the potential is -50 V, t qp km/ s:jr6lj3:ps8to point B, where the potential is +50 V, is

参考答案:    
标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton, initially at rest, i pv+s. :biys:ws accelerated through an electric potential difference of 500 V. What is the kinetic energy ofy+sb :v:.pwsi the proton?

参考答案:    
标记此题
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 electricfjn30v2ewas 0l -hmv- potential difference of 500 V. Whafas2mew vhjl vn-00-3t is the speed of the proton?

参考答案:    
标记此题
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 difference of 1200 V. Woqw :/lzicq7bhmc p1 z9i796 ghat speb9mc6 :oqpci 977qz/izwglh 1ed does it acquire?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
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 id v7beug25g b3;dwv0n2mg ;u nn moving $8.5 \times 10^{18} \; electrons$?

参考答案:    
标记此题
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 jjanj954mwlj/-qx6w difference of 500 V. What is the velocity of ta64-9j m/ 5nwxwjjqjlhe electron afterward?

参考答案:    
标记此题
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 f pux24xnhy. ;- h-b.bueg 2gz20 mC. The object is accelerated from rest through a pnzu h4h.;.-ubg-y2pbxxe fg 2 otential difference, and afterward the ball is moving at 2.0 m/s. What is the magnitude of the potential difference?

参考答案:    
标记此题
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 between twoh 562vzr i,cup parallel metal plates separated by 1.0 mm. What is the electric field between the ppr6vh ci5,z2 ulates?

参考答案:    
标记此题
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 paral4z4h26g gitrr*+pgc ,dl+ pokdz2i9f lel to the +x axis. If the potential at x = 5.0 m is 2500 V, wr4dtlr+ *,pgigh6gp+f2o4dz c2zik 9hat is the potential at x = 2.0 m?

参考答案:    
标记此题
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a uniform electric field of 500*( 4so) ;ur) 2ymcbfmcdte.j og8wh f 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 m directly westcogc mo02y4dut;s ewf8 ) rbh.f*)j(m of that point?

参考答案:    
标记此题
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 0qfmolx39 yr:direction of an electric field of magnitude 3.0 V/m. What is the change in kinetic energy of the py loq90m :rx3froton?

参考答案:    
标记此题
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 b.9is 4ry :r,s/ilkbnu.e5 es nattery. 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 is the potential difference between the initia: i4sr.nknle95es.s/y rb ,i ul and final points?

参考答案:    
标记此题
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,oacm5:fkug g u.:d18h 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 0.050 m from the positive plate, ho:agu58 hd 1uk:gm.fcow much kinetic energy does the electron gain?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel plates, separated bysv g-j:bmuhew ./0cs4 0.20 m, are connected to a 12-V battery. An electron r.- jhvsbeg c4s0wum:/ eleased 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, what is the speed of the electron?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a uniform electric field suqn3qhp,58aa( 5it. l0gooz 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 east of the poih3g,na u(0i oas8tz.qol p q55nt?

参考答案:    
标记此题
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/ve lovmrcs;p 4a 1eun hjjj/2bqie86t9;h5*7 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 souve27 8lj;pcq v;ju a 5mbh6i*nje 4s /erh9t1oth of that point?

参考答案:    
标记此题
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 diffe )lf 3cr/3qy6htz 3aigrence of 12 V, it will acquire a kinetic energy (in the absecq/haiflz3r ) 63tgy3nce of friction) of

参考答案:    
标记此题
50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential at a distance o3ch 6 00meb15sc b g(q3hgvfkjf $5.0 \times 10^{-10} \; m$ from a nucleus of charge +50e?

参考答案:    
标记此题
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 meter stick. Find the 4,7qwk)vu -kb jnqs i5*y7fglelectrical potential for the center of the meter suqygl w)*s-74 7qvk ,5fjkibn tick.

参考答案:    
标记此题
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(fh3k2hp-mp e at (3.0 m, 0). If the potential is - 2meph(fkhp 3taken to be zero at infinity, what is the electric potential at point (0, 4.0 m)?

参考答案:    
标记此题
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 a ,)y-jrecs7m (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potential energy of a 1.0-nC seyrj)7,c-m acharge at point (0, 4.0 m)?

参考答案:    
标记此题
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 ,jcx(9/v tt, jl4mt1knw kam7p/6mcv /z 4g vnis 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 inf94 g6m wj1tav,/txmt pj/4/zv,lc7vk n kcn(minity to point (0, 4.0 m)?

参考答案:    
标记此题
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 g/lcx3xnnt37 f g(vg7of sides a and b. What is the potential at the center of the rectangle if q = 2.0 mC, a = 3.0 fv77 t3l3/gxgxncn(g cm, and b = 4.0 cm?

参考答案:    
标记此题
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 plae-m3 2 abymabbkx4 20bced in two diagonally opposite corners. In the other two corners are placed charges of +3.0 mC and -3.0 mC. What y2xamae b2 0b3k4-bbmis the absolute potential in the square's center?

参考答案:    
标记此题
57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle (charge 4*(c,mosyyh3o c3 b96hgfr fq+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?

参考答案:    
标记此题
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 charge1kq ja bilh2 mdm;14/(v4;nyipho7tzs, each of 2.0 mC, at the corners of an equilateral triangle of siat;i/(1 moqzb;j k 71i42h4phldvynmde 2.0 cm?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
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 whe0php z0cbdp,:es bm+ mo37ei0n it is charged to 100 V?m pbp37bpc: his,+ode0 00ezm

参考答案:    
标记此题
60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has plates of1ccx.oh lrhcp :2fv, 5 area $0.50 \; m^{2}$ separated by a distance of 2.0 mm. What is this capacitor's capacitance?

参考答案:    
标记此题
61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is filled with3jog xhi k:n5t 2pk7(u air, and the plates are separated by 0.050 mm. If the capacitance is 17.3 pF, whho(ut:7kig5p 3knjx2 at is the plate area?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capatd1v,g3;k 6l / y56c5p0 lwtycicmlmqcitor has 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?

参考答案:    
标记此题
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 tc yj ,/rq74yinhe potential difference between the plates is 2000 V, with the top plate at the higher potential, what ry,y/n qi4c j7is the electric field between the plates?

参考答案:    
标记此题
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 acr +xz7nywcz 2yd ms01l j6lzae*c;; ,eioss a 100-V battery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How 1lw,;y6s; j 27z+izxl*e0dmyaczcen much additional charge flows from the battery, which remained connected during the process?

参考答案:    
标记此题
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 (tj i: n;sbfy5pjki-5au 5,qkmuch energy is stored in the capacitornpy(b,si5 5tk -jkqiuf ;ja: 5?

参考答案:    
标记此题
66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  20 V is placed across a 1 g7-cnpfbvkn ei3v jo 5t,279h5 mF capacitor. What is the energy stored in the capacito v 7te-k7bci2hjog ,n5fp 39nvr?

参考答案:    
标记此题
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 zxu9 syu0m cho8kw-6jf0 y0v4(mfvi8 of a capacitor when it is connected to a 12.0-V battery. How much work wasj6v(sxy9cv 08w yo-4 izhu8f0 m0umfk done in charging this capacitor?

参考答案:    
标记此题
68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a 10-mF capacitor is charged s.+b9 h yv,exhuo that it stores $2.0 \times 10^{-3} \; J$ of energy, what is the voltage across it?

参考答案:    
标记此题
69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor consists of plates of .e8xmwm k (o-parea $1.5 \times 10^{-4} \; m^{2}$ and separated by 1.0 mm. The capacitor is connected to a 12-V battery. What is the capacitance?

参考答案:    
标记此题
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 area xq:o vi.ftmnkoc+4a6 :w 4uj7 $1.5 \times 10^{-4} \; m^{2}$ and separated by 1.0 mm. The capacitor is connected to a 12-V battery. What is the charge on the plates?

参考答案:    
标记此题
71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor )0ah+ g ntygu7(ti,:7n:iiwmirobd q:;o- c cconsists 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?

参考答案:    
标记此题
72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor isjqlh:b* j6e7 i 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?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is constructed wb bn-rpf0 /s3yith 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?

参考答案:    
标记此题
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 becomes zqsw3zwkqk,l-7, 7 qjfully charged. The battery iz ,sqkww,jz-lk73qq 7 s 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 capacitor after the slab is inserted?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
标记此题
75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 15-mF capacitor is qn0yr2yi(o 2wh 0 z*08foe1 brqq)w fxconnected 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 dielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inseri q 0yw2yn8qq2h(frxz0o r)*beo1wf0ted?

参考答案:    
本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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
  • 姓名:游客(未登录)
    •
    总分:75分 及格:45分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题，此次习题练习共有 75 道题

    试卷内容到此结束!   © 2025 51fly国际课程 (https://51fly.win)版权所有

    浏览记录|手机版视频|手机版试卷|使用帮助|51fly国际课程 (https://51fly.win)

    GMT+8, 2025-12-20 05:45 , Processed in 0.640299 second(s), 180 queries , Redis On.