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 is not axg(exv13 q ck 9ftk6o7 vector?

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
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One joule per coulombec ta jk;e:w.; is 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 i.6.fgmbtv. rpa a *d4j*zlrt5 nsulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is4.*g 5r.lm6z j tadaf*tr.v bp at a higher potential?

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
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a proton moving in the lf/t iop 5y85twzzd.2cqy4* y 2clbz7direction of the electric 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 opposite to the electric f2k szn6j.hj.v+5 gjs jield

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 hrqxqt:ao,8 q :ollow 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 snl f((zd3 6f9io* if/b*pdsqo gih89erated from rest to a speed v by a 500 V potential differen8ip(i/o9fosi* ( 3dbnz s6fhl9* qgfdce. If the potential difference is changed 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 9ff v 8dx33 +zmipatr(7kor/ s v *xulpnq(-s3points are at the same potential is referred to as

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
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 equipote: g7tiblx 25ozntial surfaceb75ogi 2lt:xz.

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 must nd;*k8dbh( lime -7fgbe

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 c v wyyne(fh0*p.m7 :iearrying a charge equal to that on the electron as a result of moving through a e0:y fhnmvi w.yp( *7epotential difference 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 3*rngar 4)1v wqj//)bgijrfya unit of

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 coyu 0gv+d 4g0. .jegkpf2cfn ehyi4; -trresponds 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 +y )b4kk; viiz,rred8p hky:: m from a positive point charge is 100 V. What is the absolute potential 4.0 m away from theyy kihp kr ezvi:d+4:8,krb;) 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 from1 gquw1pfkg b(b7 2h)z a negative point charge is -100 V. What is the absolute potential 4.0 m away from t7zh2kqpgw)g(f11b ub he 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 square iswcg4sj mv06ddp :t8q2 3.0 V when a charge of +Q is locat6ctp02vjm8sdgqd4w : ed 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 c9dnts i4* hh+c2e3g7ts q4yt 3.0 V when a charge of +Q is located at one of the square's corners. What is the absolute 7hti+*tqtn c3 9ys24shdc g4 epotential at the square'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 consist (9pj w09my6 welwo, saof 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 is gf4+josz0* eqgfl 9:ea

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 capacitors are identical ufn mx8, m56nhin every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, the larger one has capacin6f5 nu ,mmxh8tance

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 capacitance of C. eujy2 (cr sr989)u jsxw7byi6If the area of the plates is doubled and the distance between the plates is halved, what is the new capacita)(2uyyjr9 srx9eiu7c j w68sbnce?

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. 4-fomwh)ri25 o1n ,afqig7 xb 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 the oaiowm7-r5)h qf,xbi24nf 1gy are being separated?

参考答案:    
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 capacitor is weakened, the cy8-hau0 - w.ig7+n c*fyvn pgkapacitance pycgniy v-*ngk -uaw0hf.8+ 7of that capacitor

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
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 xh8 einnc 7x*8with constant voltage by a battery as they are pulled apart. During this proc8hecxn7 ni* 8xess, 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 capacitpa7ly)a1kfal :2qg)kc,r 3h l or are maintained with constant voltage by a battery as they are pulled ap 7la ,a)y:cpkhfgkl23a lqr1)art. 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 material between the platulq hj28jb+ b /z3vnt*es of a capacitorb8n+tjzq3bu2 j v/l *h.
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 capacs 7nj7ts 2w.vncnk; ,yitor. Whycnn2 w7sknj;v, 7s. tat happens to the 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 -ss 8zz/ap s+ ea qt),o38yjoo-ae0hmplates of a capacitor holding /hsp tezsjo) z--y qe0o,+s8 aa 8oma3a fixed charge. 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 bat4b sr26aw*rbhappy 5+ tery and becomes fully charged. The capacitor is then disconnected, and the separation between the plates is increased in such a way that no char5w 6+bb2aas*yhrp4p rge 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 a constant charge caus bz cr5)m-z5i q)ylsh44w ;b8*+ raasjoll.aqes the energy stored in that capacitor tq8 rzlaq;-ym) ss . 4ol +4bwh)j5ab5criza*lo

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 given capacitor causes the energy stored in that l6*grqm v- a;5l m*v) qaaxx3ecapacitor avl*5e lx6-q3; qaaxrm* )gvm 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 qtz+n,jbt u ph *.8es,to point B. What is the potent.u+qps z, 8etbj,* htnial 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 p f8y./8;nortgn3 xytfrom point A, where the potential is -50 V,yot /8 x.yg8nnft3pr; to 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 p m.eopdpl 5c2 8uwg4g-otential difference of 500 V. What is the kinetic o5ppe-8wl uggcdm.24 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 rest, is acceler.o2k4fze* b:mjn;2 m e pyg*upated through an electric potential difference of 500 V. 2 p .momn*k;gfu 2bee:pyz j*4 What 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 123ls:v 464w v sgnhlxhf*3na 7a00 V. What speed does it acquirv gvsn334 fh4w*6lnasa: 7lh xe?

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 do in mzv -jwbt84p c1oving $8.5 \times 10^{18} \; electrons$?

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 th142boa81t uzrdck v.l rough a potential difference of 500 V. What is the velocity of the electr41 tdv8rul ka2zco. 1bon 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 20 mC. The object is accelec )g/ixq +eio5rated from rest through a potential difference, and afterward the )c +qi oe/xg5iball 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 two parallt,eqn 5f d 3fha)t7y72pay7hpii5g ;pel metal plates separated by 1.i y2ti5hfd7p)pfyeh;5 7n at 3,7pa qg0 mm. What is the electric field between the plates?

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 nrfcmg6t /i* )parallel to the +x axis. If the potential at x = 5.0 m is 2500 V, what is the potential at x = gc6frm)in * /t2.0 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 fi)h7dm 4bc ql9o,28ws sph f8ljb-f7 vpeld 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 vlb cs)oq9- w4d pfpv8 7j,fl7 shhb8m2oltage 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 electric field of mac5rrsh pe*xq k4++ubd)3pbe.gnitude 3.0 V/m. What is the change in kinetic energy of theudpb3+4k x sr5eerchp)b*.+q proton?

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 batters8a1v 3ph6via y. An electron released from rest at a location 0.10 m fr iph1v36sa8avom 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 bmobxey ycc1:4g3ik7e1k h+ 2by 0.20 m, are connected to a 12-V battery. An electrokkbe iyg mcy 413h2x+c7b: 1eon 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 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, sep 9bq0 bmdb3bd,k ijh0/arated by 0.20 m, 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 m 9,h0ik0dq/j b b3bbda distance 0.050 m from the positive plate, what is the speed of the electron?

参考答案:    
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 0 e:/qgihf)nh field 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 voltag/0hf h):qni ege 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 elecoqblz kkv ov5)8k):* 5j;khnitric field 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 onq k 5)*5oijl:vkk; hk8)bzvthe 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 throupvt+yvpkiq)eah i6*.7i p33 yi d,8bagh a potential difference of 12 V, it will acquire a kinetic eyb k+ a3yi.ivq 7)e 6app3hi*vi 8ptd,nergy (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 at t*(ow3n jf5u 1peb-b(ojw+dg 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. Find the electrical poty jyb4b9 3e9uq ,j5wcjential for the cenj9 bwy,9y53 4j qebcjuter of the meter 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 (0,igd+-f 9zs jm(ukp6x 6 0) and a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinisxf( -d zkjgm +p669uity, 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 (3.0 m, 0). If the23 ;jbxumb3pi x:o*l z potential isx2zm:*l biu j;pob x33 taken to be zero at infinity, what is the electric potential energy of 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 -2.0-6 e;nh1v 1lljfnC charge is 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 infinity to point (0, 4.0 mf1vll nhe j16;)?

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 of siv4l24uzed argo 1vi(9s9 j:ct des a and b. What is the potential at the center of the rectangle if q = 9vdsuo a4r :jli2zce(94vg 1t2.0 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 placed in two sk4 u ;yrb+ fo p)2jow9,s1o6mjqmmn: diagonally opposite corners. In the other two corners are p)6+mo9 2:fno1worsb4my msj; q, ukjplaced charges of +3.0 mC and -3.0 mC. What is the absolute potential in the square's center?

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
57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle (charge +2e, mass qg 8 fs h*t;gxag1d0.f$6.64 \times 10^{-27} \; kg$) 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 charges, each ofe/0oi ozq(:q e 2.0 mC, at the corners of an equilateral triangle of sid: /eoqq(0zo iee 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
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 2.6me tzd1f0 , jka;5r5eb.omt r0-mF capacitor when it is charged to 100 Vrtkd1bf.5m50ja emr6eo ;zt, ?

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 p(4/ +xvd1 l zgr zufh1vr08ltalates of 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 with air, and theh*voqp j8zy8p7rg+*n6g i yd0 plates are separated by 0.050 mm. If the oyrh6q **zjgn8gypp 80 7+i dvcapacitance 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 capacitor has plateqp6tok1 )v +vjkk;ij -s 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. y) 2/luri knf9ri+,n6afgb8yq:+hfxIf the potential difference between the plates is 2000 V, with the top plate ar92f),+bnrnky +hf iqyx6i au8 g:f/lt the higher 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 capacitor is connected across a 100-V *dq c+h) 7me/bv :o 5zm/oyael*3yhojbattery. After the battery fully charges the capacito:l *z/vbyhjm )e ohm e7y +d5oc*/aqo3r, 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?

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
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. :k,wuht, evemdv: .u ca9wb)4How much energy is stored in the capa,h udwv:e)b94.wcveku,:a m tcitor?

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. z:osm)p11 lar/ yuva+ What is the energy stored in the capac1+vz :1lr s/payumao) 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 the pl ;))wp1v cb;o6v9)t 1wcuvmvusxq 3f3c7cpjxates of a capacitor when it is connected to a 12.0-V battery. How much work was done in char)fuoc;7vcsx); 1qw3wxj6v bpm c3)vucv tp 91ging 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 q h 7occi;(7itw7ez(w hc fv9)0aswq5it 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 cons vts*48+9l8i rchl clkists 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?

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 cnj+ b7e 2)dmoebex 24odah-,w4uex n;onsists 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 cowmk .3-oqxpj :nsists 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 is constructed wit k(gp; q5z h+mfuv .i..a4nysdh 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:    
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 :exh/5 4), xilaz jtvxarea 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 k/qgql(6q: l2 c9wsl jedy0x4 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 dielectrdq0lwk gl9/2xj:s4eq(yc ql6ic has a dielectric constant 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 to5xsv a*2 nmv g3,az0:wza th+w a 50-V battery and becomes fully charged. The batterh*xsvta 3gv ww5z 0a:z2ma,n+ y 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 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 06:29 , Processed in 0.730857 second(s), 180 queries , Redis On.