题库网 (tiku.one)

 找回密码
 立即注册

 

      

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 Unit21: Electromagnetic Induction & Faraday's Law
本习题练习试卷来源于题库网 (https://tiku.one)， 为试卷打印版，您也可以在网站平台(https://tiku.one/)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 80，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://tiku.one/test80.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: admin    总分: 142分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月20日 21:29  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  
  All of the following are egt09smr 7,ms(qc xn6 +vpnv ;v5hc a0units of magnetic flux except

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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  
  Faraday's law of induction g4txvf,egr rtg.x-*0yu h -j8states that the $emf$ induced in a loop of wire is proportional to

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  
  Doubling the number of loops of wire in a coil produces what kind of chan gkv6jt-9 l4drge on the i-9 6ktlrg4vjd nduced $emf$, assuming all other factors remain constant?

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  
  Doubling the strength of the magnetic field thro(8 7;wy ch )vbfeyv0bx+tar8j+azq 2zugh a loop of wire produces what kind of changxyvw0tqzfe )+v 8b a7;c+h2r(az8yj be on the induced $emf$, assuming all other factors remain constant?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the diameter of a loop of wire prrxf i.5hq25 znv hv9p;++xs kxoduces what kind of change on the inducqs +vv przhxx5k;5xf.hn2i9 + ed $emf$, assuming all other factors remain constant?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As a coil is removed fro5t g oj +dhzqd4 e-*c4tcn43itm a magnetic field an $emf$ is induced in the coil causing a current to flow within the coil. This current interacts with the magnetic field producing a force which

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  
  According to Lenz's law, the direction of an induced ctbwba .op7o 67sxgo(hgl mm6)0 6fos1urrent in a conductor will6lw7s b .mp0gmfs 1(atoooh6 obg6)x7 be that which tends to produce which of the following effects?

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 circular coil lies flat on a horizontal table. v ,i8oa6 ,p 0zsi,fenp A bar magnet is held above its i06pv nspo z ,ea,f8i,center with its north pole pointing down. The stationary magnet induces (when viewed from above)

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 circular coil lieswzi -3j4-ci y z3lgri3dbu id5)u1 6lf flat on a horizontal table. A bar magnet is held above its center with its north pole pointing down, and released. As it approaches the coil, the falling magnet induces (when viewed fr zj15w -l3-zig )duyif3 u4b3 d6irilcom above)

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  
  A coil lies flat on a table top in a region where the magnetic fiel ovmtik 6z um+48nwj1s:7:fgcd vector points straight up. The magnetic field vanishes suddenly. When view8 iks7cn mot vj+u4zf g::16wmed from above, what is the sense of the induced current in this coil as the field fades?

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  
  A coil lies flat on a level table tip8vn-x ; c2j j8d)vlyop in a region where the magnetic field vector points straight up. The magnetic field suddenly grows stronger. When viewed from above, what is the direction of the induced current in this coil as the fiev 88p-2lviyjnc)j x; dld increases?

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  
  A coil lies flat on a horizontal table top in a region where the makx (nc585u : jf6efprpgnetic field points straight down. ffc5j(6k npu5p: x8er The magnetic field disappears suddenly. When viewed from above, what is the direction of the induced current in this coil as the field disappears?

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  
  A long straight wire lies on apk a :le6we(2hdn :ft3 horizontal table and carries an ever-increasing current northward. Two coils of wa::2kpe efl(6n 3 hdtwire lie flat on the table, one on either side of the wire. When viewed from above, the induced current circles

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  
  A bar magnet falls through a loop :cylfij:n v7,of wire with the north pole entering first. As the north pole enters the wire,:: ilcyv7,nfj the induced current will be (as viewed from above)

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  
  A circular loop of wire is rotated at coa. a)a2ar dlh(nstant angular speed about an axis whose direction can be varied. In a region where a uniform magnetic field points straight down, what must beala arh()2 .da the orientation of the loop's axis of rotation if the induced $emf$ is to be zero?

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  
  A circular loop of wire is rotated at constanix8rsyr 5 4n4oj* es1v,rcbc: t angular speed about an axis whose direction can be varied. In a region where a uniform magnetic field points straight down, what must c jrys 8o:e*1v454sr inbrxc,be the orientation of the loop's axis of rotation if the induced $emf$ is to be a maximum?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Faraday's law.93-: xqf/5 yjjepquxx
参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
18#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Lenz's law.
参考答案:    

标记此题
19#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
List the three ways wyh;-sdaer3v5 (bc+ cm-w ta- la; u/lthat an $emf$ can be induced in a loop of wire.
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  
  A wire moves across a magnetic x,y6)onfm,r 4 h 8rldcfield. The $emf$ produced in the wire depends on

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 horizontal rod (oriented in the east-west directiulw8j:72-j 9dkyb1n bh ,l gjnon) is moved northward at constant velocity through a magnetic fyndl9jbuj7blh1ng 8- ,k: jw2ield that points straight down. Make a statement concerning the potential induced across the rod.

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 horizontal metal bar rotates at a con.ui lgf+kf; jlp- 6+nxstant angular velocity $\omega$ about a vertical axis through one of its ends while in a constant magnetic field B that is directed down. The $emf$ induced between the two ends of the bar is

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  
  An electric generator transforms7u 2 .-wzi u 3wp/o.a(g .styrabh9toae.g *dc

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  
  A generator coil rotates through 60 revolutions each second. The free zk,x lp q-8n;fw857 y4sepavquency of th4nez;ypfv7 8 e ps-wk8qx5 la,e $emf$ is

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  
  A transformer is a device used tbi9u/g71ehd ic m;rchh/t;u0o

参考答案:    
标记此题
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A transformer is a device th y++m7 ,uofph0wx vz5pzi/da1 at

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  
  In a transformer, if the secondary coil ot c9w+vt8)ub1tehp/ contains more loops than the primary coil the/btecth 8t+1vp w9o)un it is a

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  
  In a transformer, if the primaggiy vih- l56.ry coil contains more loops than the secondary coil then it gh-vyg.i li56 is a

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a transformer, thz/74hmxj)i/v ifn)vod2 y: ga e power input

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  
  In a given LC resonant circuit,m rmdmc- h(ot.h ngp+y24 p76u

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  
  A resistor and an inductor are connected in series to an idealmgq s+b()gx nq imo 4f-z8q(n* battery of constant terminz-qiq )ng48m+((b sgm f*q nxoal voltage. At the moment contact is made with the battery, the voltage across the resistor is

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  
  A resistor and an inductor are connected in series to an ideal bat ;0o;vhet z-:tk5yod ctery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the ine05- h;:zd vko;yt cotductor is

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  
  A series RL circuit with inductance L and resistance R is connected a ve 8s3vslp0s7pj(i+ to an $emf$. After a period of time, the current reaches a final value of 2.0 A. A second series circuit is identical except that the inductance is 2L. When it is connected to the same $emf$, what will be the final value of the current?

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 series RL circuit with inductance L and resistance R tf58h sjls 45oj-s* spis connected to an $emf$. After a period of time, the current reaches a final value of 2.0 A. A second series circuit is identical except that the resistance is 2R. When it is connected to the same $emf$, what will be the final value of the current?

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 resistor and an inductor are connectn-h nn) j9;amb ar)4hned in series to a battery. The time constant for the circuit represents the time requiredbr);hja 9n- n)4nh anm for the current to reach

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  
  A resistor and an inductor are connected oa1v3xz y-2 ekin series to a battery. The battery is suddenly removed from the circuit. y-e1 za2vk3xo The time constant for of the circuit represents the time required for the current to decrease to

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  All of the following have the same units 6rj 4ztkg8oo a *.j b3c7ok1qtexcept:

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 resistor is connectpm+zuh f :b:2*c qiir1ed to an AC power supply. On this circuit, the current

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 pure inductor is connected to an AC power supply. In this co:4o t 4jy rb im2 /oww).ten5(mj7ketvl: dn0ircuit, the currentk rjb4) ewo ve( y7:o0lt:2/wmdn onmj t4t.i5

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The inductive reactance in an ac circuit changes by what factor when the freque4jvv3o2rv8 o; iz7mdyg6laodtz 1x;5 nlmjdotvvg6o iy1oa7 z34;x2dz;58 vrcy is tripled?

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  
  If the frequency of the AC voltage across an inductor is doubled, the inductivxy7f9jr ip:jv*i97 f de reactance of tha9xyiid :j7*f9v7pfr jt inductor

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  
  As the frequency of the AC vn7 sm(kmy io4/oltage across an inductor approaches zero, the inductms oi4knm /y(7ive reactance of that coil

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 pure capacitor is connected t.lil/9 li 2zil3e ygw:o an AC power supply. In this circuit, the currentl2li yi/e.9l :wiz3lg

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  
  The capacitive reactance in an ac circuit changes by what factor when r+rvw)1 oy3 tf2wgf hu2 9f4vw+3rbczthe frequency is triplev3g rrz24ot 3whfuwy+1)ff+wr9 c bv2d?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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  
  As the frequency of the AC voltage across a capacitor approaches zero, the c-baso h9w+e6pku y)l)gv3fv :apacitive reactance of thatvpavw3su9e)6g : -+lkfbyoh) capacitor

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the phase angle between the voltagz,8j -o/qcalses of the inductor and capacitor in a RLC series-8j,lsc/zao q circuit?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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  
  The power factor of an RLC circuit is mch5 1tmpx8oc:ox*q ilpr1/1. +cqnr defined as $\cos M = R/Z$, but the phase angle can also be calculated from .

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider an RLC circuit. 9n( pw-vyt kla6 ub-7jd*kw :lylx00tThe impedance of the circuit increases if R increases. When is y:l 00a kb(w unx7tw -9d6jk-vpll ty*this statement true?

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  
  Consider an RLC circuit. The impedance of the cir8djpzf3w. --e1m*x 2vp;qaw xmh*oeecuit increases if $X_L$ increases. When is this statement true?

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  
  Consider an RLC series circuit. The impedance of :s8gv ri g0p orj()itc-h an14the circuit increases if $X_C$ increases. When is this statement true?

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  
  If the inductance and the capacitance both double in an LRC si lhd jyok2i(t k/o2e9z (mqu/s 94g,oeries circuit, the resonant freq/t io u4le9oi 2gq(dk/(sz o yhmkj2,9uency of that circuit will

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  
  Consider an RLC circuit that .-dl8 ,4jvz6w: vhr h)ntuu evis driven by an AC applied voltage. At resonance,

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  
  Resonance in a series Rzh f rkw+:- ubpr480bkLC circuit occurs when

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 flux of $4.0 \times 10^{-5} \; Wb$ is maintained through a coil for 0.50 s. What $emf$ is induced in this coil by this flux?

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  
  A circular loop of radhog.z b-ll;tl,,r97 8g tt jpvius 0.10 m is rotating in a uniform magnetic field of 0.20 T. Find the magnetic flux through the loop when vlp; l7o .,8-z,trhbgt tl 9gjthe plane of the loop and the magnetic field vector are parallel.

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 circular loop of radius 0.10 m is rotating in a uniform magnetic field of suxk4x22t, yt 0.20 T. Fin2ut4y2,xt s xkd the magnetic flux through the loop when the plane of the loop and the magnetic field vector are perpendicular.

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  
  A circular loop of radius 0.10 m is rotating in a uniform magnetic field of 0./ qdx5(ff i;dn20 T. Find the magnetic flux through the loop when the plane of the loop and the magnetic field vector are at an an nixq (ffd/;d5gle of $30^{\circ}$.

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The cross-sectional area of an adjustable single loopaiudmk(7h) f ( nye0x,d- fej7 is reduced from $1.0 \; m^{2}$ to $0.50 \; m^{2}$ in 0.10
s. What is the average $emf$ that is induced in this coil if it is in a region where B = 2.0 T upward, and the coil's plane is perpendicular to B?

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  
  The flux through a coil changes ftu-vam5 v +zf7rom $4.0 \times 10^{-5} \; Wb$ to $5.0 \times 10^{-5} \; Wb$ in 0.10 s. What $emf$ is induced in this coil?

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 coil is wrapped with 200 turns of wire on a square frame with sides 18 cm. 4 l uhel tms1j05dc0h2A uniform magnetic field is applied perpendicular to the plane of the coil. Ifesl2d051 mcjhu 0th4l the field changes uniformly from 0.50 T to 0 in 8.0 s, find the average value of the induced $emf$.

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 square coil of wire with 3ltxs3g t d(n2l y7.lqur2j0 u15 turns and an area of $0.40 \; m^{2}$ is placed parallel to a magnetic field of 0.75 T. The coil is flipped so its plane is perpendicular to the magnetic field in 0.050 s. What is the magnitude of the average induced $emf$?

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 coil of 160 turns -1 f1,kf68q;mdw tdbth*rxc fa1 nc)gand area $0.20 \; m^{2}$ is placed with its axis parallel to a magnetic field of 0.40 T. The magnetic field changes from 0.40 T in the x-direction to 0.40 T in the negative x-direction in 2.0 s. If the resistance of the coil is 16 W, at what rate is power generated in the coil?

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  
  An airplane with a wing span of 60 m flies nhh 6bu * s(60moftm;wf*(uaz horizontally at a location where the downward component of the Earth'sm u;wf uh6tzh06*no* sbmfa(( magnetic field is $6.0 \times 10^{-5} \; T$. Find the magnitude of the induced $emf$ between the tips of the wings when the speed of the plane is 225 m/s.

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 horizontal metal bar that is 2.0 m long rotates at a constant angular v zvfqqnrv76hd0h:8 i.wx/j4 x elocity of 2.vwq4xxr f:z v.nhdh 87i6j0/q 0 rad/s about a vertical axis through one of its ends while in a constant magnetic field of $5.0 \times 10^{-5} \; T$. If the magnetic field vector points straight down, what $emf$ is induced between the two ends of the bar?

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  
  The coil of a generator has 50 loop+sl+wa6f8.q olz4 hfgs and a cross-sectional area of $0.25 \; m^{2}$. What is the maximum $emf$ generated by this generator if it is spinning with an angular velocity of 4.0 rad/s in a 2.0 T magnetic field?

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  
  An AC generator consistsa1wc bbve e:dv3hn75+ of 100 turns of wire of area $0.090 \; m^{2}$ and total resistance 12 W. The loops rotate in a magnetic field of 0.50 T at a constant angular speed of 60 revolutions per second. Find the maximum induced $emf$.

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  
  An AC generator has 80 rectangular loops on its armatuz 4pc4xm;l8kx fq +g gh/9td9sre. Each loop is 12 cm long and 8 cm wide. The armature rotates at 1200 rpm about an axis parallel to the long side. If the loop rotad 4xgkqcf 9zgxs9t8/ ;h+p4lm tes in a uniform magnetic field of 0.30 T, which is perpendicular to the axis of rotation, what will be the maximum output voltage of this generator?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An AC generator consists of 100 turns of w jsj sp 6.b:7o2mq(l7xpnwef0ire of area $0.090 \; m^{2}$ and total resistance 12 W. The loops rotate in a magnetic field of 0.50 T at a constant angular speed of 60 revolutions per second. Find the maximum induced current.

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  
  Suppose that you wish to construct a simple AC generator/r wq m67kn8iv with an output of 12 V maximum when rotated at 60 Hz. A magnetic field of 0.050 T is available.i8 r7nqwk mv6/ If the area of the rotating coil is $100 \; cm^{2}$, how many turns are needed?

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  
  You are designing a generator with a xyepf5 3 mn4(m0kgg5emaximum $emf$ of 8.0 V. If the generator coil has 200 turns and a cross-sectional area of $0.030 \; m^{2}$, what would be the frequency of the generator in a magnetic field of 0.030 T?

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  
  The windings of a DC m4e+sq bmywould758q6 gws - t+w8 acp3otor have a resistance of 6.00 W. The motor operates on $120 \; V$ AC, and when running at full speed it generates a back $emf$ of 105 V. What is the starting current of the motor?

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  
  The windings of a DC motor have a resistance of 6.00 W. The gu 9j9d2wv1dk hyc ;.smotor operates on 120 V AC, and when running at full speed it generath. ;c1 w2v 9g9sdjkydues a back $emf$ of 105 V. What current does the motor draw when operating at full speed?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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 DC motor of internal resistance 6.0 W is connected to a 24-(lrcnanc1u7oi 5l 60 mV power supply. The o5uncn 7a(c l1lrm0oi6perating current is 1.0 A. What is the start-up current?

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 DC motor of internal resistance 6.0 W is connected to a 24z:52bppniej ( -V power supply. The operatinni5(p2zepb : jg current is 1.0 A at full speed. What is the back $emf$ when the motor is running at full speed?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A DC motor of internal resistance 6.0 W is connec(x b-0ejqo-6zo ofgk qb;e,x* ted to a 24-V power supply. The operating current is 1.0 A at full speed. What is the -6(ogxejb 0b k oz;xoq*- e,qfback $emf$ when the motor is running at half speed?

参考答案:    
标记此题
76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A step-down transformer is needed t2gf76 .l ycedxo reduce a primary voltage of $120 \; V$ AC to $6.0 \; V$ AC. What turns ratio is required?

参考答案:    
标记此题
77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  2.0 A in the 100-turn primary of a transformer causes 14 A to flow in the seconlhc )9bc yc ;9(ekgz1ndary. How many turns are in kz 9cn(heg1cb;ylc 9)the secondary?

参考答案:    
标记此题
78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a transformer, how many turns ari5 f/2m -mm/o;dei*fgez v:soe necessary in a 110-V primary if the 24-V secondary i ifeof - :;m/mv5s*zodgm/2 ehas 100 turns?

参考答案:    
标记此题
79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An transformer consists of a 500-turn primary coil and a 2000-turn secondary 1+yn)smoy 6 uq*6uv t:np)nzre: t4cm coil. If the pzncmyt4 )+*nms)nu6r6que :voty:1current in the secondary is 3.0 A, what is the current in the primary?

参考答案:    
标记此题
80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.0 A at 110 V flows in the primary of a transformer. Assuming 10l853asp/rrdjhk ep ; *0% efficiency, how many amps at 24 V can flow in the sechad*5 sr 3kp8p/re l;jondary?

参考答案:    
标记此题
81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The secondary coil of a neon sign transfql:1rg+ 6xaiwexl8 zh+cd/ 7zormer provides 7500 V at 10.0 mA. The primary coil operates on 120 V. What does the:e /a++ zlxcqx 8gd1z lwi6hr7 primary draw?

参考答案:    
标记此题
82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal transformer has 60 turns on its primary coil ank01;7:1jq gyq yqid) )5tkpakotrqw)d 300 turns on its secondary coil. If 120 V atqt))ydq5gj 7w1o 0:y1)piqtk; aq rk k 2.0 A is applied to the primary, what voltage is present in the secondary?

参考答案:    
标记此题
83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal transformer has 60 turns 9oe d( -ahjw:+ryo5r non its primary coil and 300 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary, what current is present in the secn5ao-o9d( e r +hjwyr:ondary?

参考答案:    
标记此题
84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The primary of a transformer has 100 turns and its secondary hv,63(w tg jieut :j kj2,trh7las 200 turns. If the input current atl(gj j7kt6 ui3,h2:e jtvr ,wt the primary is 100 A, we can expect the output current at the secondary to be

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The primary of a transformer has 100 turns and i5; ga-)r-o wateitpn .ts secondary has 200 turns. If the input voltage to theti.-oagp en5 ;-)traw primary is 100 V, we can expect the output voltage of the secondary to be

参考答案:    
标记此题
86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The primary of a transf4uj(yzdaon) 4c (x 3,rc- noljormer has 100 turns and its secondary has 200 turns. If the power input to the priray)xd3(-4,l noczj 4o(nuc j mary is 100 W, we can expect the power output of the secondary to be (neglecting frictional losses)

参考答案:    
标记此题
87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A generator produces 60:/dpu- 14hkalvw6ij h,fv tu1 A of current at 120 V. The voltage is usually stepped up to 4500 V by a transformer and transmiiav/khj1du ,h1 lt6- wf:u v4ptted through a power line of total resistance 1.0 W. Find the number of turns in the secondary if the primary has 200 turns.

参考答案:    
标记此题
88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A generator produceszf .yk7dy/6, (iairsr;aj mp - 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by a transformer and transmitted through a power line7/-(.6izkifpmr ,rdsy aj;a y of total resistance 1.0 W. Find the percentage power lost in the transmission line.

参考答案:    
标记此题
89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A generator produces 60c; kaj.rnc dbyqa;a0s :+hv 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by a transformer and transmitted through a power line of total resistance 1.0 W. Find the percentage power lost in the transmissi; svahyjc+n6.r c dkq;00: abaon line if the voltage is not stepped up.

参考答案:    
标记此题
90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A power transmission line 50 km long has a total resin. fhwb:7 e h0; cokuml.5xl9sstance of 0.60 W. A generator produces 100 V at 70 A. In order to reduce energy loss due to heating of the transmission line, the voltage is stepped up with a transformeolu.;efw b 7hx9m h.s0 cln:5kr with a turns ratio of 100:1. What percentage of the original energy would be lost if the transformer were not used?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A power transmission line 50 km long has a tocy.e3l h8 qx*z7mfti0 tal resistance of 0.60 W. A generator produces 100 V at 70 A. In order to reduce energy loss due to heating of the transmiss*y7c3zh.t8q ix f le0mion line, the voltage is stepped up with a transformer with a turns ratio of 100:1. What percentage of the original energy is lost when the transformer is used?

参考答案:    
标记此题
92#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  100 kW is transmitted down a 6-W line at 1000 V. How much less power wou-/qdfnx ++pgynw,v czp7ms7 8ld be lost if the power were transmitted at 3000 V instead of at 1000 gcpy,/+n v -n s+7zd8fxmq wp7V?

参考答案:    
标记此题
93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The output of a generator is 440 V at 20 A. It is to be transmifd4 6 2 rn9u a9z:4c5xnlfzj vdlubk14tted on a line with resistance of 0.60 W. To what voltage must the generator output be stepped up with a transformer if the power loss in transmission is not to exceed 0.010% of the original 1c4jx9 d ua5ln4vdk2u bn9z4 rff6z:l power?

参考答案:    
标记此题
94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-mH coil carries a current of 5.0 A. How much energy is stored f 5xq i:bp,a9f,2 o*h9 cdnticin the coil9fbn:pq,xid ict c h5, 9*2foa's magnetic field?

参考答案:    
标记此题
95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple RL circuit contains a 6.0-W resic/ 0mpigo/l n/stor and an 18-H inductor. What is this circuit's time const o0/ ni/gcpml/ant?

参考答案:    
标记此题
96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the peak voltage in an ACsknx)rdp2fe 6 xre6:/(pc 3hc circuit where the rms voltage is 120 V?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 150-W lamp is placed into a 120-V AC outlet. What is thvlr+k )jb+(7:nk ) zrd 8(qatyvxx 4rhe peak current?

参考答案:    
标记此题
98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 150-W lamp is placed into a 120-V AC outlet. What is the resistance of)pt0fyi fv/ 3i the lamp?t3p/0i yi)vff

参考答案:    
标记此题
99#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 10-W resistor is connected to a 12)*ieccn:81am/k m pl l0-V ac power supply. What is the peak current throuci8 *c) /1:lnpk mmealgh the resistor?

参考答案:    
标记此题
100#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 10-W resistor is conn 5l dmxw:s0tc,tv(dj 5k4-r lxected to a 120-V ac power supply. What is the power dissipated in the resisto s5(5trkldlcmxtdj -vw,0: 4xr?

参考答案:    
标记此题
101#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The current through a 50-W5.h.a s -,z+ydnw 0bqq pm),ro5w eboi resistor is $I = 0.80 \sin (240 t)$. What is the rms current?

参考答案:    
标记此题
102#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The current through a 50-W resistor i2)vo 2e82vd: i5zy waegfilcyi 3)v2vs $I = 0.80 \sin (240 t)$. At what frequency does the current vary?

参考答案:    
标记此题
103#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The current through a 50-W resistos ye7dxc7z+ f1r is $I = 0.80 \sin (240 t)$. How much power on average is dissipated in the resistor?

参考答案:    
标记此题
104#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the reactance of a 1.0-mH(xy(:f*cuv k xh3i: dm inductor at 60 Hz?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
105#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the inductive reactance of a 2.50- (jw yw;):ne acb)sib8mH coil at 1000 Hz?

参考答案:    
标记此题
106#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At what frequency will a 14.0-/ny 5bm*6weotnxbx0g nlw0 -7 mH coil have 14.0 W of inductive reactance?

参考答案:    
标记此题
107#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What inductance is necessary for 157 W of inductiveevw +5te :ih;aydrnscpbqyc (4- i8/5 reactance at 1000 Hz?

参考答案:    
标记此题
108#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in a 60-mH inductor when 120 V AC at a frequency -vnh . ;ua izf-s8g/dfm,fwh5of 20 kHz is appl-mwad/ v-,zsf5;.un8ih g ffhied to it?

参考答案:    
标记此题
109#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the current thwp*2 79j-rdrswbrwfnb c;,i8 rough a 2.50-mH coil due to a 110-V, 60.0 Hz source?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
110#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the capacitive reactance of a 4.7-mF capacitor at 10;db,dxru(p 7z qp-jqx: ml-h* kHz?

参考答案:    
标记此题
111#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What size capacitor is needed to ha+ll6h,2oem o,bukmb b )f6se(ve 50 W of capacitive reactance at 10 kHz?

参考答案:    
标记此题
112#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At what frequency does a 10-mF capacioyj b yxywq t yt2/xl0a.sd* 7ksy4e4*+ u3)twtor have a reactance of 1200 W?

参考答案:    
标记此题
113#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At what frequency will the capacitive reacx0c0 jazw8r .xtance of a 0.010-mF capacitor be 100 Wrwxc8x 0z. j0a?

参考答案:    
标记此题
114#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the current through a 0.0010-y*a2 qgmoxhsoo6,x 7; mF capacitor at 1000 Hz and 5.0 V?

参考答案:    
标记此题
115#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the impedance of an ac series circuit with 12.0 W3 (ev oehjh*. dvb0tw)tiwj+- resistance, 15.0 W inductive jb3-0etv .j)oh+i ( etwv*dwh reactance, and 10.0 W capacitive reactance?

参考答案:    
标记此题
116#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total impedance at 1500 Hz if a 100-W resistor, 20-mH coil, and 1.0-v.b0 m p3pi.fmmF capacitor are conni0mmp..pv f 3bected in series?

参考答案:    
标记此题
117#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the phase angle at 1500 Hz if a 100-W resistor, 20-mH coil, and 1.0-mwutss x;2 s, 6qzec73xF cxz2se,3; 6 qtwscxs7u apacitor are connected in series?

参考答案:    
标记此题
118#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a 1000-W resistor is connect3fjk :(e 8 die *qsmbyhs-(f,6sxjdt,,ouwn/ed in series with a 20-mH inductor, what is the impedank8*jf,d,idx f ns(os t6u 3,q (jse emybhw:/-ce at 1000 Hz?

参考答案:    
标记此题
119#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a 1000-W resistor is connected in series with a 20-mH inductor, what is theb-22vv: hvikw phase angle at 10vv- k2v:b2iwh00 Hz?

参考答案:    
标记此题
120#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What resistance is needed in a series circuit with a 20-mH coil and .glkz;x yup /c3+3bd 7a8kwrk1.0-mF capacitor for a tza7 l.y dur3pwkb3+;gkc/8kx otal impedance of 100 W at 1500 Hz?

参考答案:    
标记此题
121#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following cap b/vvzuq +inp, -4akb/acitances is needed in series with a 100-W resistor and v/pn az+,v b4-/ kbiqu15-mH coil to get a total impedance of 110 W at 2000 Hz?

参考答案:    
标记此题
122#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What resistance must be put in series with a 450-mH inductor 2lb5*e ub6-e guaf w5dat 5000 Hz for a total ua5bw5e 2d* 6fgb-ul eimpedance of 40000 W?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
123#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What inductance must be put in series with a 100-kW resistor at 1.0-MHz foupzqpkt 5,-:fr a total , z: ptkqp5u-fimpedance of 150 kW?

参考答案:    
标记此题
124#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 10-W resistor is connected in series with a 20-mF capacitorqg4u c1izzzb;a7427mw+nzlt. What is the impedance a+ ig4c 1a 72;mtbn 7zlwzz4uqzt 1000 Hz?

参考答案:    
标记此题
125#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What resistance is needed in series 8nmsvp: o( df)-zfl070l n /j*bnoicswith a 10-mF capacitor at 1.0 kHz for a total impedance of 45o)-n(c l/ j: f7sdvp bnilfz*0mns8 o0 W?

参考答案:    
标记此题
126#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What resistance is needed in series with a 10-mF capacitor at 1.0 kHz for a p9wzg8 yh0tgja 8owt8o6(a1,4 ggcmh phase angle6 g ghzw8(8o o0h pcta4m yjat,g81wg9 of $40^{\circ}$?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
127#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What capacitance is needed in series with a 30-W resistor at 1.0 kHt,eti 2r wo8a3z for a total imtr2 ,38ewiat opedance of 45 W?

参考答案:    
标记此题
128#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 10-W resistor is in ukhe;.l7xf4n series with a 100-mF capacitor at 120 Hz. What is the phase ahln4 x.7fu;kengle?

参考答案:    
标记此题
129#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows awwrzab3*7b.nhos qy n90 +os)t 5.0 V and 1500 Hz if a 100-W resistor, 20-mH coil, and 1.0-mF capacitor are connected in*)h 0oryao.s +w9 wqb7sn3bzn series?

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
130#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A series RLC circuit consists of a 100-W resistor, a 10.0-mF capabc*5 cv(/fvn8nd*m6 nghkuj*citor, and a 0.350-H inductor. The circuit is connected to a 120-V, 60-Hz power k8 vhmd fu6vn*jc(5ncnbg/**supply. What is the rms current in the circuit?

参考答案:    
标记此题
131#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistance of 55 W, a capacitor of csw8 go99)eera)q- -y8 fdcb byapacitive reactance 30 W, and an inductor of inductive reactance 30 W are connected in series to a 110-V, 60-Hz power source. Whatewbbo y8fyr)sa)9 -g9de8c- q current flows in this circuit?

参考答案:    
标记此题
132#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the phase angle for a series RL z0hp6elh 6ud-,0bmapC circuit containing a 50-W resistor, a 10-mF capacitor, and a 0.45-H inductor, when connected to a 60-6 ahzm 6pl ,u00pbhed-Hz power supply?

参考答案:    
标记此题
133#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What inductance is necessary in series with a 500-W resistor for a hu*ocdp6q 6i6:kwj)i1nz h 4tphase angle o nc6j kpwih6): dhu*1q6tzi 4of $40^{\circ}$ at 10 kHz?

参考答案:    
标记此题
134#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A series RLC circuit has R = 20.0 W, L = 200-mqc y1uypmkz2+wp9voqm49 . f/H, C = 10.0 mF. At what frequency should the circuit be driven in order to hq uf+wzop4c2 .m99vqpyky1/ mave maximum power transferred from the driving source?

参考答案:    
标记此题
135#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the power output in an ac series circuit with 12.0 W resxez1/ry i2y+rwzd))w 0 kzzk3istance, 15.0 W inductive y 23wxz1 ) 0wr/rz+ey )kzdkzireactance, and 10.0 W capacitive reactance, when the circuit is connected to a 120-V power supply?

参考答案:    
标记此题
136#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The phase angle of an AC circuitu6 **1euauuiwa c 3h(h is $63^{\circ}$. What is the power factor?

参考答案:    
标记此题
137#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ac series circuit has an impedance of 60 W and a resistance of 30 W. What if6 w 5tbr 2oqf1ofks(wruvj32eu 3 6v;y-zzx:sof2f ryk t3ue;w xubsv( rz3-6ov5z21q:jw 6 f the power factor?

参考答案:    
标记此题
138#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the power factor fvmve/f:2 a i2aor a series RLC circuit containing a 50-W resistor, a 10-mF capacitor, and a 0.4aiv: ef2a m2v/5-H inductor, when connected to a 60-Hz power supply?

参考答案:    
标记此题
139#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the resonantrm 8 lfkya13x+ frequency of a 1.0-mF capacitor and a 15-mH coil in series?mlkrya+ x1 3f8

参考答案:    
本习题练习题目来源于题库网 (https://tiku.one)，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
140#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What inductance is needed in series with a 4.7-mF capacitor for a1 lt/(sx7 ror: sa9tay resonant frequency of xastr(r91lt/7 osa: y 10 kHz?

参考答案:    
标记此题
141#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What capacitance is ne+qv 3,jixu/ yaeded in series with a 3.7-mH inductor for a resonant frequency of 1000 Hz?qvy a/,x3ji+u

参考答案:    
标记此题
142#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What size capacitor must be placed in series with a 30-W resistor *1dvor/3w5h*hm ma.lo 2 sbpfv 2v.b band a 40-mH coil if the resonant frequencm2ob..bvsw*vfld*h1v/ho 3rp mb 5a 2y of the circuit is to be 1000 Hz?

参考答案:    
  • 姓名:游客(未登录)
    •
    总分:142分 及格:85.2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 142 道题
    本平台(https://tiku.one/)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!   © 2025 题库网 (https://tiku.one)版权所有

    浏览记录|手机版首页|使用帮助|题库网 (https://tiku.one)

    GMT+8, 2025-11-27 04:33 , Processed in 1.107515 second(s), 305 queries , Redis On.