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://autodiscover.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://autodiscover.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 /c*jz)sw rt53mycf o/+h a nc0is not a vector?

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 e0b;2zmb h9+ko 1 ihhois a

参考答案:    
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 fro4mdf ph2q,ins a 04+mnm their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object ins in+mqphm4f0 2, d4as 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 elz1 mi* -:de*atcu* hz .nq0wsfectric 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 direc 7:nvalj n82h2+ xbg( kgp6kfqtion opposite 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 o3a v7 f5fwkuj8ev)r:ut h (j1on a hollow conducting sphere. They

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 accel.q8 s( 1wgo2b g,whga tj0j5syerated from rest to a speed v by a 500 V potential difference. If the potential difference is changed to 2000 V, what will the new spgjgqt5sbw1o8wy . 2,ajg0 (sheed 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 refr .qp z h70t(8oejw;raerred 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 poin *(g:ibs:+vv4+d+w z wnephdgt A to point B along an equipotential surfacd4+s +:wwni(evg :gzp hd+*vbe.

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 surfy2aew* s( o w3yge//pyace must be

参考答案:    
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 e)zax;pu(g l)jqual to that on the electron as a result of moving through a potential di) p)guza (lxj;fference of one volt is referred 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 a unit 61q .s*cqyi1gpou t5bof

参考答案:    
标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One electron-volt correspondsea u5w vyc7p*qo+:hc;(5seso 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 point uyd tb6i zk)k8vfd+7+charge is 100 V. What is the absolute potential 4.0 m away fromk++ tdik7d6 uyvf)bz 8 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 negative point cv0o5dlop/h t2harge is -100 V. What is the absodt/o5ovl 2hp0lute potential 4.0 m away from the same point charge?

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 center of a squarg-:k 5mhaorhbds 0 6a2e 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 ok:h-ob 6rh2 sm daa5g0f 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 V when a charge ofqwdre,nl 2 *)v +Q is located at one of the square's corners. What is the absolute potential at the square's center when a second r,q d*wnl)2ev
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 alw +boud ,prx)*says consist of two charges that are

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skysky1258，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
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One coulomb per volt ishyen7x2az/o ues* (za s8c /3x 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skysky1258，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
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel-plate capacitors are identical inf 3bl jaorg2()3aw3 vw every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance v2 wjf)wlrga3 3a 3bo(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 capacitan)2rc)l ro)e oaqt w.j7nlnt) 0d*gm9n ce of C. If the area of the plates is doubled and the distance between the platew2)qct dl) n omn9) jr. ln)*7aegrto0s 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-9/ccjt 7egy)1i w1trauv d +t4xigeps sj53;5plate capacitor 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 potential difference between the plates as they are be9i3ts je51d1pgru7y 4)/ xw +c s;e gvacttij5ing 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skysky1258，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 of a given cap xoh9go aiv*1wfk ,0/cacitor is weakened, the cw / k*a1f0oo,x9vc ighapacitance of that capacitor

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-pla tgpj.z 6r)5mzadooz2vw7; 3w f( vo5pte capacitor are maintained with constant voltage by a battery as they are pulled apart. During t g5zw 5.p aw (7vr2pd6o)zfo;vtjoz3m his 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-pkl 6stjec 90 /-to5bqzlate capacitor are maintained with constant voltage by a battery as they ar tzet0lb oj/96cq5sk-e pulled apart. What happens to the strength of the electric field during this process?

参考答案:    
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 adding a dielectric materi mem -oj.,q+d fjirs0s+wztsw03mcyud); 1+ial between the plates of a capacitor.m 0.f+ yiw qi+m1 me,z-wustrj0dj+sc3 ds)o;
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 wgq f r,zgagr (. q+x,in( r5n;w*p9smas paper is placed between the plates of a capacitor. What happens to the caq+mqrzg(xf r5 pi9 ;,wa.r,(g nns*gwpacitance?

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 a capacite g5veloj+ -i0 .b.gxzor holding a fixed charge. What happens to the electric field between the plates?0 e5ij+ e.x.- lovggzb

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 batz x hwdv ;k:u7p.5l4we*vst;stery 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 off. The energy stored in this capacitvez7w4:dxk;v.sl h u s*;t wp5or has

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skysky1258，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
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the capacitance of a capacit il 0xa 5n rq(w-/fjkqxtm.+c;or holding a constant charge causes the energy sqq/.fja c m5x 0x(nt wli+-r;ktored in that capacitor 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 a7 aqm+a-ihijy.i) r a x)4x7ufcross a given capacitor causes the energy stored in that capacitor)a+7a47 x uf m)-rah.yjiiiqx to

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skysky1258，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
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  It takes 50 J of energydgy0 il5o5md( to move 10 C of charge from point A to point B. What is the potential difference bet(do d5il0g5y mween 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 from point A, where the potential is th,,mt gn)73lx6j2wzx2 st;wduoip6 -50 V, 7j2soutxdli,w2zm ); pgnx6t3h,w6tto 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, is accelerated through an electric pdpd h)*6 qn7vhotential difference of 500 V. vd)7 pnh dq*6h What is the kinetic energy of 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 rest1ogwbc5u /*w6 lpgk2 q, is accelerated through an electric potential difference of 500 V. Wh1w5wkp u/*o qlc2gb6gat is the speed of the proton?

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skysky1258，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
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 di7xsm qobkk 2s un5pz a2398i)xfference of 1200 V. What speed does it acqukmqb 2xss3inox8 5k2 z a79up)ire?

参考答案:    
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 j6h jjf-kh91xdo in 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 accelerated3z 6+hz7b1e g uprq/b77r u1znrgti-j through a potential difference of 500 V. What is the velocity of the electron afterwarhr1/ 7u6r inb zgqp7gz13+t e-zr ubj7d?

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 20 mC. The object is accelerated from,sogz + (0 ik/c-xbl3 k7a xq6rjpst;k rest througc- ,tkgs( splixqx7+o3bk/ 6ra zjk0;h a potential 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 th yl6qljb6 6ad/n0 /h+e5llhx4djk(fpe electrical potential difference between two parallel metal plates separated by 1.0 mm. What is the electric field between the pla hdnq/bkl 6hl6/ jy (05 exjf6aldp+l4tes?

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 parallel toefi2wp 3oq5u, the +x axis. If th uo5w qi2p,fe3e potential at x = 5.0 m is 2500 V, what 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 fio b nvf7hv;18ai*gpte5.xt)reld of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point is 80 V, what is *b 8p)1hig er5vtoxtn f.a7v;the voltage at a point 1.0 m directly west 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 direction of an efgr-z ;a0;nd slectric field of magnitude 3.0 V/m. What is the change in kinetic energy of the pro0; azngs f;rd-ton?

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 battexahu:,8)-t rv :*cxja1hdu6i v.lfcnry. An electron released from ,dhatlur :jx1 6vua8f c:.ix vc h)-n*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 initial and final points?

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skysky1258，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
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, b(yh kh+rw 0wlcov;.gy63 h3k are connected to a 12-V battery. An electron released from rest at a location 0.10 m from the negative plate. When the electroy .wgkobhl63;+(hrvcw hy3 0kn arrives at a distance 0.050 m from the positive plate, how much kinetic energy does the electron gain?

参考答案:    
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 by 0.20 m, are connected to a 12-V bc.b ((-d:gzm :2 gcmeyo d5xxbattery. An electron released from rest at a lg (bz:m:bcddm(-.egxc 5y xo 2ocation 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skysky1258，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 of 50 N/C directed toward the east l1g fqw-7we:rghwgl(a+ 34x s. If the voltage measured relative to ground at a given point in the field isw7 wx hewq :-gl1gs4(3a f+rgl 80 V, what is the voltage at a point 1.0 m directly east of the point?

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/C directed toward the east. If(wr88a.t9qpjb -fi yy the voltage measured relative to gfiyp8a- t8 r qyw.bj9(round 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?

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 th.goo dbq; d61o5k;feh rough a potential difference of 12 V, it will acquire a kinetic1hkgod;f;bd q.56ooe energy (in the absence 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 ;0jj.rqg(ud/q u. s umat a distance of $5.0 \times 10^{-10} \; m$ 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. F* ca4 w2i briiz0jmv((ind the electrical potential for the center of the met((i0j4ci z* 2 wivrbmaer stick.

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 (cuxqd8ui. 26y j 4pev00, 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 poin2j0e x.4upd8q ic vuy6t (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 (3.0 m,+hybsi/m2 ,zr 0). If the potential is taken to be zero at infinity, what is the electric potential energy o/y2h ,i bmrzs+f a 1.0-nC charge 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 is at (3.0 cx,u596zp 6wwemn g0ym, 0). If the potential is taken to be zero at infinity, what is the work required to bring a 1.0-nC charge from infini0w6 u59g,ym6pw nzcex ty to point (0, 4.0 m)?

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skysky1258，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
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 cornersau7y20syq6mf 0r 86kn:s plj d of a rectangle of sides a and b. What is the potential at the center of the rectangle if q = 2.0yj2a msr pqf6 :d70nusl 80k6y mC, a = 3.0 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 plna fwr4gcx3z p; ds. yb),o)t)aced in two diagonally opposite corners. In the dtrny)wsg;., cx 3bfo4zp ))aother two corners are placed charges of +3.0 mC and -3.0 mC. What is 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 (chargea8oefyi0 zgru h2*0w3 +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 tso j4yodn f rwr-;/ k90.xw(luo place three charges, each of 2.0 mC, at the corners of an equilateral triangle of side 2.0 /(wrx -jn0l u s owfy9ko.r4d;cm?

参考答案:    
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 kenau v: a2kx;e1q7 y4of a 2.0-mF capacitor when it is charged to 100 kx7v :ke4ynea1a2uq; V?

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 of (t pdg0xx7 ee hp2:8;o tqrnu9area $0.50 \; m^{2}$ 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 with aih*p3l+z phc(wr, and the plates are separated by 0.050 mm. I w(lhp+hp*z3cf the capacitance is 17.3 pF, what is the plate area?

参考答案:    
标记此题
62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacit 9;qkv3/rgglkor 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 the potentialuw8;oh,w 9w:mjq7c ya difference between the plates is 2000 V, with the top plate at the higherm9ajq:,c7; uy8w w how potential, what is 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 capacitodzb3fj:uoym u +lcw1g;-;uj lan*x79 r is connected across a 100-V battery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.ng - m c 1 ;ljzl7*;uo:aju9by3fwuxd+5). How 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 capacip c,l);ymdwb/4+zixxta2k. mtor. How much energy is stored in th )2 ;ma,tzi+ ypx./wcx4bmk dle capacitor?

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 15 mF capacitor. uee+zeqjn ) -6pt.lkbe92h v 5 What is the energy stored in the capacpehn bl29 vzk6 q.e-jet 5+ue)itor?

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*e;2xhnyssrk/9 8b kq the plates of a capacitor when it is connected to a 12.0-V battery. How much workebxs /8h yqn;srk29k* was 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 so that it sto( d h9kggjzkmg d ,:.;rskxi-8res $2.0 \times 10^{-3} \; J$ 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 paone1m0j1di* 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?

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 capacg;an86ws nv5hitor 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 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 consists of plates lhl *jd1we;l2 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:    
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skysky1258，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
72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is construcc ly udv9ia., h,zu1.rted 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skysky1258，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 with plate arlg dj(amx 3(i+ea 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 batteryjdi,-mb0mnz* 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 -zmdi ,0mnb*j of 5.0, what is the capacitance of the capacitor after the slab is inserted?

参考答案:    
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 connected to a 50-V battery and becom,7 vjtw:0zskww(vf y+8 u gky1es fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the di,ygv k8fy71t+z :sjwvk0( ww uelectric has a dielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

参考答案:    
  • 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
    本平台(https://autodiscover.51fly.win/)支持练习，作业与考试(自动评分)三种模式，群组成绩统计排序导出，题目动态变量实现同卷千人千题。
    如果您对本系统感兴趣，想加入我们或者想进行任何形式的合作，请加微信 skysky1258

    试卷内容到此结束!   © 2026 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, 2026-4-18 00:44 , Processed in 0.502265 second(s), 179 queries , Redis On.