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
本习题练习来源于题库网 (https://tiku.one)，是在线习题练习的打印版，您也可以访问本平台网站(https://tiku.one/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 80 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；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。本试卷的直接作答链接 https://tiku.one/test80.html
 作者: admin    总分: 142分  得分: _____________

答题人: 匿名未登录  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 areob 7pl.wiw *psr;i* oif)a7k+ units of magnetic flux except

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  
  Faraday's law of induction(lp d(qpt* al o55)tya states 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 ar*-h3io :wquwhat kind of change on the:3*oq iawr-hu induced $emf$, 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 through a loop of wire prt3vei;-4sajn9 jbi z1oduces what kind of chans 9 vanjbiz- 43;1jeitge on the induced $emf$, assuming all other factors remain constant?

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  
  Doubling the diameter of a c w m lbr19bd30krsh. w,(el(floop of wire produces what kind of change on the indum( 1wewrblhbc9(s3,l0f dk r.ced $emf$, assuming all other factors remain constant?

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  
  As a coil is removed720gm3 i,tef t-ikelv from 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 a,z; d)dj vp*ap. :qklyn induced current in a conductor will be that which ).vjq;k ad zldpy* p,: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. A bar magnet is heldo;ciw/j/o0xv .s 7ou f above its center with its north pole pointing down. The stationary magnu xw/ fjsi;o.07o/cvo et induces (when viewed from above)

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
标记此题
9#
 
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. A bar magnet is heox o0qp4+om d47wjge .ld above its center with its north pole pointing down, and released. As it approaches the coil, the falling magnet induces (when q4xw7.o+d oo 4gp mj0eviewed from 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 7qavjao: ah;7region where the magnetic field vector points straight up. The magnetic field vanishes suddenly. When viewed from above, what is the sense of the induced cuh:7 jaq;aaov7rrent 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 iajqwq2g 1lrs)i+lt:q1-ai 16v 5 btulevel table top 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 field tvl+jiaw)i2q s165qlugr:tq ba-1i1increases?

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 -yi(kz6,wv)lw/* rufk el8 cbwhere the magnetic field points straight down. The magnetic field disappears suddenly. When viewed from above, what is the direction of the induced current in this coil as the field disappkibklrzcyw 6 fv/) 8wlu*-(,eears?

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 a horizontal tabk d)+0fv7qd9 xsh8hm kb) p4file and carries an ever-increasing current northward. Two coils of wire lie flat on the table, one on either side of the wire. When viev7 4 p)qfbmk8 dih)9ks+hxd f0wed 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 of wirt0c vd*uk4 h*de with the north pole entering first. As the north pole enters the wire, the induceh*d40*u d ctvkd 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 rkcz4t/ / y3(khny9ngb otated at constant angular speed about an axis whose direction can be varied. In a region where a uniform magnnnbgzk4(yc 9/hy/t3 k etic field points straight down, what must be 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 constant angular speed about an axis whoj -)mpyz* fnxslj)k5 5se directio*p)z jj- lkxyf5) m5snn can be varied. In a region where a uniform magnetic field points straight down, what must be the orientation of the loop's axis of rotation if the induced $emf$ is to be a maximum?

参考答案:    
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. l2ef4djfg ,)/k7orm s
参考答案:    

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:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 i:9n 3 jxkyg/mkc: pxfy j.)-gthat 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 fie2z;ea9/ /b/nc+8 kq he( tn;8ukv-vlkmpeuwqld. 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 direction) is mov(+*w vu0om enbfutx+-jj;y(bed northward at constant velocity through a magnetic-u+*wn(yjetbmbv+(; j0uo f x field 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 ba;o4;zxq 1 0l a,bgvfkzr rotates at a constant 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 transkv(p( job;)a8; egkq,z5n evpforms

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 frequency of ls7,kqnpnr8p i3 9 *q(e7yh zsthe * q9(yr,ns p3peh8l7zn 7qski$emf$ 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 devi5f 5ic iuew 2,eh2:nmzce used to

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 dey)-pk/7j tizpul 5jv2vice that

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a transformer, if9mgnh2a sydbp30 mk l2sxu 83; the secondary coil contains more loops than the primary coil then it is xln2s982mm0pd3hu yb3 g ks;aa

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 primary coil contains more loops tlv d5a.9vxj9)8cc 0s)fylo ml jdi ;n.han the secondary coil then it ili9. vdlsx )l5co j.adnmj)fyc9v8 ;0 s a

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  
  In a transformer, the po4xiqzm nwh1 fe;w0-sm) mf:c 5wer input

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 c/*+tu2nf9t pw wv6tv yircuit,

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 id+w -g ;m(psp3+ld)hw+ tjq wjseal battery of constant terminal voltage. At the moment contact jtw +)mw sph;j- w+ql(spdg3+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 dvpi4 6dpl -+e;.sotdconnected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across theslv6d .t ;id e+4pdpo- inductor 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 co likq c.70 er;kgh0u8mnnected 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 is conhx,+1ft7fe c knected 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 connected in series to a batte du/ ze1f14wv,6cv0h:fdzsudry. The time constant for the circuit represents tv: ddsfzfw,c zv11/u 0ud64 hehe time required 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 in t3a ,i pzle*yn1 :qn4g-fmjx58hh 2uuductor are connected in series to a battery. The battery is suddenly removed from the circuit. The time constant for of the circuit represents the time51*xahq:up t zu l,h3n84ei2m gyfnj- required for the current to decrease to

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  
  All of the following have the same units excep 48/h54o uj 2xlqc3y1ls +kq3 5v:i qjikldgntt:

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
标记此题
38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor is connected to an AC power supply. On this circuit,ui cjuj1fuz 8-6,rur : 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 circum7ep) bypy avkw*g6te 5n u0+5it, the current 70p)wbm5*tevg a y+n6k5pyue

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  
  The inductive reactancmr6b x : z/brk:o-u*grxeo(:fe in an ac circuit changes by what factor when the frequency is tripled?6o(ob*rkmuxxer:r -g /:z f:b

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 indu2vnl1vynf /td6rb: 4ictive reactance of that indvin/ybl61v: r4t 2 dfnuctor

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 As58f e iycat-u/t.ux-C voltage across an inductor approaches zero, the inductive reactan5c-8x-it syef.a/uutce 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 to an AC power supply. In this circuit, the curre.e+o-o q3aux:cji)gm3 j s3p tn3 ajq+joo3m.3pegi -x u:st)ct

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 the f grk+lk-az9-:hyo /xa requency is tripo+ -rghxy/-: lkaz 9kaled?

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  
  As the frequency of the AC voltage acro ou7cswtz .y2.ss a capacitor approaches zero, the capacitive reactance of that c.uws7t2 oy.zc apacitor

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  
  What is the phase angle between the voltages of53ryzmu nq*2. hr6wwn the inductor and capacitor in a Rww 26 *zmy3rh q.nnru5LC series circuit?

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  
  The power factor of an RLC circuit is defined qbvz(r7 -d24;y8rcjzd. fts was $\cos M = R/Z$, but the phase angle can also be calculated from .

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 an RLC circuit. The impedance of the circuit increases if R incre.pto t ujfq71- vjel3)ases. When is this s jj.qvp37)1tu- fteoltatement true?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 circuit increasesg;jbpxe1b6e z bp),6 ru/id2k 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 impedx9yj6n*(flr pp4o:o vance of the 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 anii gygrh:u5)5.: fusi LRC series circuit, the resonant frequency of that 5fh5uy:.s irg ii ):gucircuit will

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 is driven by an AC applied volta-/e atjs6jyj,0(3 ttojgfpe(ge. 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 RLC circuit occurs 3t2gkh6qdo 9iw yog3*9 bdn- hwhen

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 radius 0.10 m is rotating in a uniform magu wdi u;um01;)j 6usvunetic field of 0.20 T. Find the magnetic flux through the loop when the plane of the loop and the magvmwuuuji1 ;u6;sd)u 0netic 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 radiushdp/y/w.hn j) 0.10 m is rotating in a uniform magnetic field of 0.20 T. Find the magnetic flux through the loop when the plane of the loop and the magnetic field vector an/jh )py.h/d wre 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 i, u:.v sw :a;d98fu(nzl cb gijq5rgn,n a uniform magnetic field of 0.20 T. Find the magnetic flux through the loop when the plane of the loop and the magnetii.9znu vnrd s5fawqgl;8 jg:( :b, ,cuc field vector are at an angle of $30^{\circ}$.

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  
  The cross-sectional area of an adjustable singleh/t d) 7avlo6p ;i1zcf/ zv3 0vlwdmz/ loop 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:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 c0q1 sfkuj)a toh8srw9jdy,- +hanges from $4.0 \times 10^{-5} \; Wb$ 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 sqzwgx/o-, faf3+e4 st iuare frame with sides 18 cm. A uniform magnetic field is applied perpendicular to the plane of the coil. If the field changes uniformly from 0.50 T to 0 in 8.0 s, find the average voi-, gfz4sew a3xt/+ falue of the induced $emf$.

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 15 tur;f- u oj:-sxl4y: zgwbns 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 a 4guiu6v2;9ln*sxd 4kc 0qiwn nd 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 flie sn+i o;5gxqz-s horizontally at a location where the downwari-qoz5x ;n+sg d component of the Earth's 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:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 rm s(wpkv+r7q +oom16.0 m long rotates at a constant angular velocity of 2.0 rad/s about a vertical axis through one of its ends o +r(+rp k1owsm7mv6qwhile 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 loops and a cross-sectiontlu9j go+;7tl al 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 consists 4)-qega-x jnfa9 fg7z 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 rectanl7bb;xx; y q8;ygd;-fz)l g+mhw 6gt wgular loops on its armature. 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 rotates in a uniform magnetic field of 0.30 T, which is ph - +6; lgw;w8 ;gy;gfdzy7lx)btmxq berpendicular to the axis of rotation, what will be the maximum output voltage of this generator?

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  
  An AC generator consists of 100 turns of uzoczd)-cf *1 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 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 with an output of 12 V )+ 3bw:xb hp;rkkouckj(k-y; pw5x)o maximum when rotated at 60 Hz. A magnprp y ;xhx; kwuo)(-koj3 b5w)c +k:kbetic field of 0.050 T is available. 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 maximum j zwfp077om( e:t9xdg *n8tmm$emf$ 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 motor have a resistance of 6.00 W. The motor on6r .1j uudv-pperates 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:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 hav ( k3c6scny unuv-+rn+e a resistance of 6.00 W. The motor operates on 120 V AC, and when running at full speed cu++ ( -cy nrv3nsuk6nit generates a back $emf$ of 105 V. What current does the motor draw when operating at full speed?

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 DC motor of intern-blyr -q*goa yq198-dwt u4cg al resistance 6.0 W is connected to a 24-V power supply. The operating curre wgrt8-alq -y9o*d yq1u4bc-gnt 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 connecthkc+ vgp vs,mx 5zgop70 (x6,xy *1h9 ebi)quaed to a 24-V power supply. The operating current is 1.0 A at full speed. x6v0hv) ,1*gcxg7(uzqpka, obesy95+ ihxpm What is the back $emf$ when the motor is running at full speed?

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 DC motor of internal resq;nkk+)yvloj n4uvr+mi 6:1 histance 6.0 W is connected to a 24-V power supply. The operating current is 1.0 A at fvyr1) 4o;n :kk+l inu6j vmh+qull speed. What is the back $emf$ 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 nxw9f; mof6a;is+ zc7keeded to 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 q6jso bzpt0-ll7mk ) psys1/ 9secondary. Hoky o/)q1mzbsp-ltp9l7j0 s6 sw many turns are in 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 are necessary in a 110-V p zat7v)9mqi,8bj oqk zq0 sb9,rimary if the 24-V secondary has 10 m9qzz)9bv bs07kqtioqa,j ,80 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 sea q apmp+y bj*tw5r7/y:r:wc6condary coil. If the current in the se r rp w6/:ya7ybc +a:q*ptj5mwcondary 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)p7b 6,7t ,afiyouofp4pm i .b of a transformer. Assuming 100% efficiency, how many amps at 24 V can flow i,,op 67t.uy bb4fpa)iom7fp in the secondary?

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 transformer provides 7500 V at 10.0 mAqk(yt(kyt u2 4* nao9f. The primary coil oper2q94n (uk(fyy t*akotates on 120 V. What does the 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 coi *s/1zk.)xu32x 7kqv cxit/e +dbig ftl and 300 turns on its secondary coil. I2 3z/g+.*i) tbxkqk1 c dt7x veufsx/if 120 V at 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 on its primary coi siq5os46edwm432es c hs,2) yoxpb c98td ge+l and 300 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary, what espsiegmqc+bo t54dh9o,22cy6 s8d4ex) ws 3current is present in the secondary?

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 seconda cua c2;9,genkry has 200 turns. If the input current at the primary iecu,ck9n g; 2as 100 A, we can expect the output current at the secondary to be

参考答案:    
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 1(1tzuacb knj ; rh8r5 z6uf gs69vq1y600 turns and its secondary has 200 turns. If the input voltage to the primary is 100n( bz1 ug9uvr rs65f 8kcz jtaq6;1hy6 V, we can expect the output voltage of the secondary to be

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 transformer has 100 turns ankw0o fy z 4dl40b)pk/m-e+gdzd its secondary has 200 turns. If the power input to the primary is 100 W, we can expect the power output of the secondary to be (neglecting frictional lom4dzokpb4 yg ke0w/-+)l0dzfsses)

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 A of current at 120 V. The voltage is usually stepcjpa3g/ r( lrv3x*uud4-nq( x ped up to 4500 V/g3 4( (pjrxx3r uclua -v*qnd by a transformer and transmitted 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 produces 60 A of current at 120 V. The voltage isdh nnqx) 5bbd +nck0;41lqdxrtu*h +. usually stepped up to 4500 V by a transformer and transmitted through a power li)br+ 0ckln *ddnn 14 hbqu5.txxdh;q+ ne 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 60 A of current at 120 V. The voltage is usd1eb8 uqj 2o j-3c8mepvm8-shually 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 theu d-ec 3h 8msj-pm881veqjob2 transmission 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 resistance of 0.60h sy1zz4 d1hlw h0prws:v11 9f W. A generator produces 100 V at 70 A. In order to reduce energy loss due to heating of the transmission line, the v 19zdsw1h4l 1hvs1fz0 w:hy proltage is stepped up with a transformer 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:    
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 total resistance of 0.60 W. A4w 2rm0ux 2hqz 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 transformer with a turns ratio of 100:1. What percentage of the r h2wum4z20xq 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 9krl0njyp0 w2x8 1 lsn1000 V. How much less power would be lost if the power were transmitted a lrknl 0xwp 0nj89s12yt 3000 V instead of at 1000 V?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 :z*8trgd0/ i hhq zyeb qtjg)8(7*q tc440 V at 20 A. It is to be transmitted on a line with resistance of 0.60 W. To what voltage must the generator output bqqzb hh7zjit *qc:/)dt* t88e0r(gg y e stepped up with a transformer if the power loss in transmission is not to exceed 0.010% of the original power?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 o+:w9s2vukxye-1w g 3 7ip7xm oecuoq;f 5.0 A. How much energy is stored in the coil's magneticgmye 7 q o+9;ec w:s7ku1xi2upwv-3ox 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 c gyx(vp(3rb1b6rrt9/ bfb5u b ontains a 6.0-W resistor and an 18-H inductor. What is this cir95(b 3g bv r1 b6x/burtr(ypbfcuit's time constant?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 AC circuit where the rms voeulfukwami4 * pk hga(;+*1 4eltage is 120 V?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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. Wp 457o kevs;nt/iaojbf6yoz. +z/(tr rmj*, w hat is the 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 wv* go+exfztvzmrv( 4m +4jh(su7)e5 y:r6 fninto a 120-V AC outlet. What is the resistance of the lamp?vehzr) fyz5 xn (+vgt+4jvm (r7e*mwsfo:64u

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 codf o7r*l5tm tek(eb9,nnected to a 120-V ac power supply. What is the peak current ok,emlf tebr( dt*975 through 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 connected to a 120-V ac power y 3qzm 3si;3.xmzczt2supply. What is the power dissi2s;zz x.t3ymz33 cqimpated in the resistor?

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-W resistor hhufcjn) v 5*y5ww-uq* 32tnmjo) ,vdis $I = 0.80 \sin (240 t)$. 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 j*c3p ki1 hiy84t2f m)njk4 ggqhm)f k/)b 2ey50-W resistor is $I = 0.80 \sin (240 t)$. 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 resistor/d3+ juz 8lbco 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 inductor at 60 Hzoyku8v36ybs1j l6 ,jrfv ut*pa 2--if?

参考答案:    
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-mH coil at 1000 Hzlyzl8rks* ys3xwv ,,. .tk.km ?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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-mH coil have 14.0 W of in96j+gxho 7 irqductive 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 inductive reactance at 1000,gha./)u0 -cgzx dduvqb:9jh 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 freque(4dlq702mo2wxzsg z nqm + -mtncy of 20 kHz is (nz- m 7wq20o2dgls x+mt4qzmapplied 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 through a 2.50-mH co uk5k8 ;;e*sl0wurekg il due to a 110-V, 60.0 Hz source?

参考答案:    
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 capaci9:vc:mxn xpj7 tor at 10 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 have 50 W of capacitive reactance aj7 xtu 5 kq0zj c:w8f5ar7jfh-t 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 fg8 uiog83h )ji)gc 9qa 10-mF capacitor 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 reactg88vj60fkg+k +r rggfance of a 0.010-mF capacitor be 100 W?8f+g0+rvk 86kr ggjg f

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-mF capacitor ateipm,b-+ edhne+y5s .kbv6 p +ude 7,w 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 /owiy3g1gjb kh 6x0)n an ac series circuit with 12.0 W resistance, 15.0 W inductive reactance, and 10.0 W yj nw36hkxo i/b0g)1gcapacitive 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 resist i2b xv)1yuzvp(p w2*kor, 20-mH coil, and 1.0-mF capacitor are2bvp v)*i(kpux2wy 1z connected 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 100k;ky1,tf ja8t-W resistor, 20-mH coil, and 1.0-mF capacitor arek1yjt 8ft,ka; 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 connected in series with a 20-mH inductor, what cm35m 2ifygn8 is the impedance a5m2 f 83imygcnt 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 srwgefkk:;lg+;a gsk; wz63v 5eries with a 20-mH inductor, what is the phase an3l:5;g fekk6gzw svw;g;+akr gle at 1000 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 circui;c v,-zbzn h k7j(zangax -b8:t with a 20-mH coil and 1.0-mF capacitor for a total imbn-jh x ;az,g7c(:z ba8vkn-z pedance 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 capacitances i2ai2 nmby b g,cc:2j;zs needed in series with a 100-W resistor and 15-mH coil to get a total impedance of 110 W at 2000 mybcc2g2ni2 ;ab,: jzHz?

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 afqdo7pkl8 1l.3k4 jggt 5000 Hz for a total impedance of gqg jk43pk7o f1ldl8.40000 W?

参考答案:    
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/ /-dh v,hvalt for a total ltvd/h,v /-ahimpedance 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 capacit+8i1 weie)x3ca00 8filpzp ls 5o,laoor. What is the impedance at 1a38plefiio)00zxll5ewscp1a i o+ 8 ,000 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 nenz m- q7s :+g)ajh snqgzi00v9eded in series with a 10-mF capacitor at 1.0 kHz for a total impedance of 45 W? q h7jn+0:gg)0-zz vasnsqim 9

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 z ek,-r yp1o h qx2p8o3(p8sida 10-mF capacitor at 1.0 kHz for a phasi-p3 (yk o82 p,drsepx1z8oqhe angle of $40^{\circ}$?

参考答案:    
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 seriesc4rn5t +o2m cl hg ezl/ce;+*u with a 30-W resistor at 1.0 kHz for a total impedance or+c+5uzel/ e4cl * 2nmt oc;ghf 45 W?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 series with a 100-mF capap1vfhuj1) du05dx9 o gdw3 (v5yy ea8bcitor at 120 Hz. What is the phase (8jh3 od dfa xu01vyg59v db1pue)5wyangle?

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 at 5.0 V and 1500 Hz if a 100-W resisx si 9a-42 le-b5vy/nw kv7cvltor, 20-mH coil, and 1.0-mF capacitor are connected in seriwvci74 y-xanes -/bl v5vk2l9es?

参考答案:    
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, a9v khr*+5;gong/q ,vd.zsk ff 10.0-mF capacitor, and a 0.350-H inductor. The circuit is connected to a 120-V, /kv ghd5 rv,q+kzf9sg;.n *fo60-Hz power 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 capacy9kdro) b4c16 , spnboitive reactance 30 W, and an inductor of inductive reactance 30 W are sy kop)b9nb d6o14c,rconnected in series to a 110-V, 60-Hz power source. What 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 RLC.o:m ucel6li - circuit containing a 50-W resistor, a 10-mF capacitor, and a 0.45-H inemu l:col-.6 iductor, when connected to a 60-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 av 5:o0.,amptdz: kynq phase angle ofmty:z5: . 0n,kdvpoaq $40^{\circ}$ 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-mH, C =vw.:n1ti;ln/ 8o lyuz 10.0 mF. At what frequency should the circuit be driven in order to hai.n/vn :lzuw1y8ol t;ve maximum power transferred from the driving source?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 resistance, 15.+st9jv4pr u9r q6a7 ya0 W inductive reactance, and 10.0 W capacitive reactan9uq9 p sa64 7trv+jayrce, 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 cidhpyr oq hoc86+)7u8urcuit 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 a )vr n/muy6w9tq3y ma(nd a resistance of 30 W. What is the powery()m tn6uyqw rva9/3m factor?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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 for a series RLC circuit containing a 50-W resistojp8 xe z,e0vli6gvo8hcp: gn9:*;n ujr, a 10-mF capacitor, and a 0.45-H inductor, when connected to a 60-Hz pj:c*hujz8ngnv8o6pl vp;9g0,ex ei:ower 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 resonant frequency of a 1..a2w ueuhjs -00-mF capacitor and a 15-mH coil in series?2 shj-u .uwea0

参考答案:    
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 withcqfj1z78bhwv pig12 a.g8z/x a 4.7-mF capacitor for a resonant frequency of 10 kaz 1ihb 88/1 cq.gf7 pvwxg2jzHz?

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 nee4 onufc;urz 96 +ll9wuded in series with a 3.7-mH inductor for a resonant frequency of 1000nuc u69zu9f4w lr+;lo Hz?

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 and a var54( 0hk k ks/:zdmu40-mH coil ifzaru: 5s04(dkvmkkh/ the resonant frequency of the circuit is to be 1000 Hz?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
  • :
    •
    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
    本系统支持习题练习，作业与考试三大模式，作业考试自动评分，成绩排序一键导出，可设定动态变量同一试卷千人千题
    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!   © 2024 题库网 (https://tiku.one)版权所有

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

    GMT+8, 2025-4-4 06:49 , Processed in 1.160623 second(s), 306 queries , Redis On.