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 not79 w5v*5oatq47- eb zn3q,erh zchl x+ a/lmmc 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 is a*(dc5rrp xn a2

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 objectsfi 2vrtq u2 fo7/igw21ar0i)j are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Whiwf)go10v t/riaf2 jiiu7 q2r 2ch 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 electric f ,g4baae,p, -7hlzcjj ield

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
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For an electron moving in a dire9ekap n, 0t+wtction 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 pz :an:*;f(ixtx hwndj2 t;od ;laced on 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 ballw oahbt1o,gi6+hp8;, x y deb-./k yjb is accelerated 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 speed oajd8gt;k o1yibx ,o,/b 6hye-.hw b+pf the ball 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
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 referred to aaw. qz5iraw f0az s u247;o 7gw+:bkmps

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 equipotential0vmq ei7(i+b7s8p d zh surfac+szed0 q 778hmibipv( 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 mufgp4v b5 gy3tr y23t*ust 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 equal toi c ,ak/9rch a.vqv) 5zo72kjz that on the electron as a result of moving through a potential difference of one volt izccr,ho)i./9zk5 2v7k ja aqvs 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
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The electron-volt islp k) g1h2f2*r4e dgbt a 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 corr e8/m 4rphtft5esponds 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 aue.e 0*tvh 7 pfoh39ih distance of 2.0 m from a positive point charge is 100 V. What is the absolute pote7 u390 * .tepoehfhvhintial 4.0 m away from the same point charge?

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
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 , r/ :n+4e;krci4b2rmycwn w53bt iyxm from a negative point charge is -100 V. Whatcbyrb4c /kentn r3 y2riwi xw;,54m+: is the absolute 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 squar2h7 -- jngfbtie 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 o f7gih -nt-b2jf 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 *ih1a8 :ohzdc vt+oqd e m)ore/ 6a,b-the center of a square is 3.0 V when a charge of +Q is located at one of the square's corners. What is the absolu /ova1bcehor qt)6odameh z+ , id8-*:te potential 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 of two ttc( ,/wvrhx6charges 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,0:p7o; zfvyvek*b m81 ferh q is 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
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel-plate capacitors are ide t;2zb;b.qcp hntical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, the larger ocb2q;thz . pb;ne has capacitance

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
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor ha/g u gi-h:hmlqa4er-a0hq ..bs a capacitance of C. If the area of the plates is doubled and the distance between the plates is halved, whb/-qu ie 4gg.rmha 0-l: ah.qhat 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 91 w+jhe uey*zand then is removed. The plates are immediately pulled hzjwe+ u1y*e 9apart. (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 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 betweenmw:+s+ o.a1e0bjqrvx6 p ye c* the plates of a given capacitor is weakened, the capacitance oxavr*be0 j+ :psm61+qeycw. of 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
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The plates of a parallel-plate capacit lxv 0leytb1d22, q1dfor are maintained with constant voltage by a battery as they are pulled apart. During thi,x f12d vltq21 b0yldes 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 are maintained with constant voltage bpgq5xr *+og cs ,s3dq ,lnwkx 9.v3;sfy a battery as they are pulled apart. What happens to the strength of the electric field during this proces, .sg3;5wq, s rdfxo q*v9gp3s+kcnxls?

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 foryvpn,zi, 0whjy0 5k7d adding a dielectric material between the plates of a capaci7y0yhpn, ji,5 dvz 0wktor.
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 pla4vc0*eu.g .bnd/zxe mced between the plates of a capacitor. What.dem4.z0b *u/n ve xcg 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 plates o8( 6l1orlh s/fh ftpb;f a capacitor holding a fixed charge. What happens to the electric field between the pl lft6;s/ (8fhobh 1plrates?

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
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is connectedfw)g9zr b3(ss to a battery and becomes fully charged. The capacitor is then disconnected, and the separation between the platesb 3z fsgws9)r( 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 capacitanenn/ i4ghqmt,7aiz.6 ce of a capacitor holding a constant charge causes the energy storai,z iqte6h g nn74/.med in that capacitor 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
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the voltage across a given capacitor 8r(7wavn;b t x3bz2h wcauses the energy stored in that capacitor toz(b8;xwavt3 2 h bnwr7

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
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. ,itu( pp)rthea7cq) 68twfy 0 C of charge from point A to point B. What is t eqh)t. fartty() 6p8c,iuwp 7he potential 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 from point A, where thkst7kiql)9o 8byno6 1e potential is -50no1 qibo )ykt9 l78ks6 V, 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, x22pb k*+x*i edgxyf9 is accelerated through an electric potential difference of 500 V. What is the kinetic energy b *dxf2i9x+e*2pyx kgof 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
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 potentialk9l8 rb4ylz8 m difference of 500 V. What is the sb98ykz4m l8r lpeed 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 mw:t; ty/ ,gcxhq46b7u trp4l through a potential difference of 1200 V. What speed does it acq4u7yc6bt ,p hgtqm/r:wl4xt; uire?

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 in mobr: 2) 6k +kvxaz:)qrwhsh+tuving $8.5 \times 10^{18} \; electrons$?

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 acceler3+uo d(iro p3locxb ;zf 0:)biated through a potential difference of 500 V. What is the velbix3;0c rd uo):( oloz+bf 3piocity of the 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 20 mC. The object is accelerated from rest jb :d 5/. fri:xp zr+u)r*nkxxthrough a potential difb/xx 5+) dzixj.n upf:krr:r*ference, 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 two p.4 f tyfmsu+d7rx.qh/arallel metal plates separated by 1.0 mm. What is the electric field between s/hd4ruffxt . .yq+m7the 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 dirzk, m b ;8olx7lop+ah3ected parallel to the +x ahxllm7;,ob3pzka8 + o xis. If the potential at x = 5.0 m is 2500 V, what is the potential at x = 2.0 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
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 tf4 xxn f6v.j/pz:ff l0nsak0q ,(n ly6oward the east. If the voltage measured relative to ground ,x( kzx f0n0/lpa f 6sn4ynf fv:j.q6lat a given point is 80 V, what is the voltage at a point 1.0 m directly west of that point?

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
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 directio4i/ q ;skvej,vn of an electric field of magnitude 3.0 V/m. What is the change in kin,vq s/jkv4e;ietic energy 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
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 conh(bv +2d, mxfqnected 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 the positive plate, what is the pote(fbq m2h ,v+xdntial difference between the initial 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, a v9i(k sb q0fhx-0tp9gre 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 posit0t 9g9bfp(qih0- kvxsive 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-+5v hmfu,2snaV 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 positivfv+ u,5 2smahne 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 elec- 1fz0 l 8krklc/i5if r*aefrj3pv)*wtric 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 f r5fp3)vakjz-lelw18c0rf/ii * *kris 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 electr6d0clp0ca x f8ic 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 th lfc0 0apc8xd6e 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 through a potential difference of 12 V, it will ac lw9 sdnit8p +-0nd+ivquire a kinetic energy d tlp8w -s09nvi+di+n(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 *my9 nj8j9 lvv,ez r+ra 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 oj3 at7m-2ffybb; f,h stick. Find the electrical potential for the center of the meter stic fm2ay7, jbho-t ff3;bk.

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-nCm -);jbh4mw vc yi-n8 arh*qk* charge is at (3.0 m, 0). If the potential is taken to be zero at infhmib ; )h-4varwnk-cyq**8 mjinity, 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, 0gusr 2d uc.3+xvn7nri9twe , 3) and a -2.0-nC charge is at (3.0 m, 0). If the potentivd+x7n .us2rw 9cgt,niur3e3 al is 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-nCc,ef8gb (x6 ex charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the w(e6bfgx8c e x,ork required to bring a 1.0-nC charge from infinity 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 c5u ,.4 joza/j;s5w -qoreqi3n )rw tcqharge +q are placed at the corners of a rectangle of sides a and b. What is t.qa )3jr5-,;5qt4ur jio/w qws z necohe potential at the center of the rectangle if q = 2.0 mC, a = 3.0 cm, and b = 4.0 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
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-y zf ris:t1t/q:efkvm6/+nvq/ v5ya side. Charges of +4.0 mC are placed in two diagonally opposite corners. In the other two corvefk1qy6a f : qtsr 5://zt yi/vnv-m+ners 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 (charget/pwrx1k 0* l39h fbmn +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:    
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
58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is neceso/ *eck dfr5a,sary to place three charges, each of 2.0 mC, at the corners oef *d/ o,5carkf an equilateral triangle of side 2.0 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 of a 2.0-mF capacitor whe ycnye el:n/pq:.6,q- g8ukdckd : c1xn it is charged to 100 V?n1p:x e:n .d/y:e68k,ccyk uqqdgcl-

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
60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has plates of areif,b d4;8iaodsy1cnif cu; )jeh 9(w+a $0.50 \; m^{2}$ 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 witzh qr6 9n+9x qyztg2uqs1(lq0h air, and the plates are separated by 0.050 mm. If the capau(+ 0qq2 trzy6zn9qh qg 91xslcitance 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 plates of are+njqx j5/zn0qi0 tc8ja $0.20 \; m^{2}$ 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 capacit0 jubf b4:;hzeteo4 6bymb*;wor has a plate separation of 5.0 cm. If the potential difference between the plates is 2000 V, with the top plate at the higher potential, we buw o;:fme ;y4jb hb*0tz46bhat 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 battery.iw -pbkf 0i81n After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant =-pfi 018inbwk 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
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 ch0si2/ dfb o8vwp4b6 napacitor. How much energy is stored in t6bpiv4nw b0/f8hd2s ohe 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. What is the energy stored in the ca36fr+2kza7gm sz efwr,7k bx6pacxe rf bk6+r3sg2,6kf7 7mwzazitor?

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 ttw zlw3e d//6be8v ,lxka7 q4 dbv,q-bhe plates of a capacitor when it is connected to a 12.0-V battery. How much work was donedwlalq7xv / we386b z 4-db,v,etbkq/ 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 capacitorgfi9 smbw ww w7/;;b6 ssst(n- is charged so 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 arek ph.:ax*0lw pa $1.5 \times 10^{-4} \; m^{2}$ 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 areaeqrmfr5) g7w wi)hlb*8pa31q $1.5 \times 10^{-4} \; m^{2}$ 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 plat4 +lbny .mygkqx.3)9 wczojb9 es 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 is9v l ya9g+ flg4fk; iu9gnr2.xzf/c 5s 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:    
标记此题
73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capaci 63don1*iam s1mmez24pgyw (mfhy2;ntor is constructed 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?

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 fultq g9x i5z)u w/eg2v(j df7i4rly 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 capacitor after the 7i 5z(tg dq) x924weurj/vifgslab 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-Vim oq yx fnrk5qwnj(fg;:lq(/4 64e4v battery and becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is klf;jigmr4eq4q (x5nvo: qf6 n (wy/4 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:    
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 07:39 , Processed in 0.534337 second(s), 180 queries , Redis On.