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 are units of magnetic frw63 rf5xlz 1llux except

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
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Faraday's law of induction states that -e by4tka /1eg8go +juthe $emf$ 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 change dh .og8xf,n5oon the induced o8 dnx,o ghf5.$emf$, 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 oflt3g(bv0q d9p dpmh0, wire produces what kind of change on thh 0d 9qmpd3gpbt,0l(ve 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 oz4s07 xcbux9n t1 4gshf a loop of wire produces what kind of change on the induce 491bsz 0gu4tnsxh7cxd $emf$, 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 removed from a magnevgsk+ht*2 uhwa5v 92 ftic 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 current in a conductor willowinqh-d(ghvx u .i2 vzt.9u:;v88hl be that which -qlh8nxzvh2u.viv i tgo.dh u9 w;(: 8tends 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 isg2s8j8matlueegugr p p 4213 8 held above its center8gj2pm tu 83e eg p8g21sul4ra with its north pole pointing down. The stationary magnet 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 as7)xwq9b9hcov- ar , held above its center with its north pole pointing down, and released. As it approaches the coil, the falling magnet in9xvsa9) br7q cwha o,-duces (when viewed 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 region where the magnetic field veclg nxf3r;0)aj ,visk+d ps)qr+r* rx0 tor points straight up. The magnetic field vanishes suddenly. When viewed from above, what is the sense of the ip *)+nx 0 rrsljx +rsd0vk;ir,3)gqfanduced current in this coil as the field fades?

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
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 top in a region where the magnetic field vectod. ww8;q1poeb8cfo j*r points straight up. The maefdqp*owb .ocw81 j ;8gnetic field suddenly grows stronger. When viewed from above, what is the direction of the induced current in this coil as the field 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+uf:(af;ibrx z: v pt, region where the magnetic field points straight down. The magnetic pf:ab( ,x:+u;ifvrt zfield 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 a horizontal table and carries an ever-inc hi1q0ci f( t;frcu0yd0sd-k /reasing current northward. Two coils of wire lie flat on the table, one on either side of the wire. When viewe0hiift;dru0 cyqd /sf1kc -(0 d 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 wire with the north pole entering fotx3t2 xg,hna, j+n .x6fk-8s(txbqyirst. As the north po.at,jkt,o s28hxfg b(6x+nx3qy t -xnle enters the wire, 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 constant angula4j)e i/w:o* px9y:vke.t bepir speed about an axis whose direction can be varied. In a region where a uniform magnetic field points si9tek.pv* 4joi ) y:pwe/eb :xtraight 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 a..zohadt 9wt lt (277gz)kyl tt constant angular speed about an axis whose direction can be varied. In a region where a uniform magnetic field hzl2)z(7tg. to. awl ktdy7t9 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.vy)nca j j:) o;.n3dej
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:    

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 that sn ylty3hz c,hxo360) 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 field. . dhu4 t+cn84ulk8ora The $emf$ produced in the wire depends on

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
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 moved northward atg b+3bio ahlnhy. ibj)7(4ia5 constant velocity through a mag h a.o3ii 7in 4)b5yb+b(jhalgnetic 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 bar rotates at a constant angular vnte,12k/)8 vybt ek ijelocity $\omega$ 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:    
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
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electric generator 2m2b tlu m9tt;3kbk,ytransforms

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 throukeqea2ymh1 x5e6 hw24n .j**wt,z mo pgh 60 revolutions each second. The frequency of tez5mhmq yo*,en p2wa x .tje12k *h6w4he $emf$ 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 devi 6yuu0 ic0jnd2ce used to

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
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A transformer is a device tha0eerttk 7ss8 6 z,4jmyt

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 thebd ;tzc wl4ks/6 h+9ad secondary coil contains more loops than the primary coil thedh6 w;l s/bk94 z+tadcn 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 primary coil contains more loops than the secon 0cnv;bwl*1phuc6/xh dary coil thc l6pw0 vnub1/;h *xhcen it is 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 powe42w nc+wkqt5k r 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,.e7g (rkk/un( juee nh8q3.jg

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 ideabn39hrnhp6ld- a/rx 6l battery of constant terminal voltage. At the m xr66dblnh3ra-ph/9 noment 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 indpc hln:cs+/ 0suctor are connected in series to an ideal battery of constant terminal voltage. At the moment chn /sp0s+c c:lontact is made with the battery, the voltage across the 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 inductanc. (pny pxavjm z6y/4:ie L and resistance R is 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 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 resista:-f nynvkj3p,*b hk*y nce R is 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 connected in series to abq ihbnza3kivhz-* /ot 7ilh8d +f-06 battery. The time constant for the circuit ret 0-v7+hiinl*-qh8iz bhbokad6f 3z/presents the 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 inductor arv2 by.ur2 p.3ixhvnv )e connected in series to a battery. The battery is suddenly removed from the circuit. The time constant for of the circuit represents the time required for the current to decr i32vvx2)vn.u r.ybp hease to

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
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  All of the following have the same unzzk67 b5. 6swxe7 nibrrh1ic k-u7 :nuits except:

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 connected to an AC power suppl )7v*-iycfw8pm b8 fuay. 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 suv. tf l78i77dzo9sc h0e-kqicpply. In this circuit, the currentcq7c97is . kte ih8oz0 7lvf-d

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 reactance in an ac circuit changes by what factor when the frequen 0y07rxm7uq5,y jwi pzcy iwj ,yr70m5 qpxi yz7u0s 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 tb rnfvud9.gqc6;zz*v6w 80gz he AC voltage across an inductor is doubled, the inductive reactance of that inductorczz0f9.dgqv u6* b86nw v rzg;

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 voltage across an inductor apn+2cm :f oip gq7hk fa*w+o:8a4fq3g oproaches zero, the inductive reactance oogo q fc 7aiw+ o:43*fq:hnm8g2+kp aff 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 p044kpb llu559 hwguiyower supply. In this circuit, the current9u blgh p4 5w54k0lyiu

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 jb;t:hsjnjm7) tt 5ih: j 5v0sfactor when the frequency is tripljtjtnt: svj ibhh;s0)5 :jm57ed?

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 across a capacitor approaches zero, the cap t6 )1nzn1f 4:pmkm m;6ybugpydclm.0acitive reacta.uy4 c0b6lmnyt)nk6:1d mm z p1gp ;mfnce of that capacitor

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 voltaly2w.v0q5o ucges of the inductor and capacitor in a RLC series cwvc q. 02ou5ylircuit?

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
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 b:):ts1nh chy as $\cos M = R/Z$, 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 r xn; )ncjyiiwl9u ( 6ke l1h2mu-0o4iincreases if R increases. When is this sti)0li mowi cnr kuh2u e 6l(x4nj-;y91atement 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 thvt.wyc.d ;lx,7lis f8e circuit 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 impw7ay,- o, ujededance of the circuit increases if $X_C$ increases. When is this statement 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
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+( )ztgdn8:p,ohs iqg series circuit, the resonant frequency of that circuit ws (zg),tdn8g:pho +qiill

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 is driven by an AC applied voltage. At resonan455k) tt5lysxpn du 5pp2l(kb ce,

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 o5y)c;o1gz f8tew(8cizq v j (sccurs 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 radiuvjb: q7x7l v(lvve9g ,s 0.10 m is rotating in a uniform magnetic field of 0.20 T. Find the magnetic flux through the loop when lv 9v7bv:qx,gjvel(7 the plane of the loop and the magnetic field vector are parallel.

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
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 oftzp-f*q,4smwkk m4 ps xq(2 :d 0.20 T. Find the magnetic flux through the loop when thz,s:m4(dx4qwm*p p-kqsk 2 tfe 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 radiusc0r0 u n6ec p:gni /qxh;3 wsjt;:bni0 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 ant0/nb 3 xhr:6nuqw c0gp ei:s i;0;ncjd the magnetic field vector are at an angle of $30^{\circ}$.

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
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 l,hfl)04p5 j gqb fj(vzoop 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 from b7qbe7 zx,f;w $4.0 \times 10^{-5} \; Wb$ 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 frames8uon,7/xgnk 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 th /ou,7snx nk8ge 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)w26 rxqpnr1-yh/jp h 15 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:    
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
62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A coil of 160 turns anez)f7sp/ ft+ vd 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:    
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
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 horizontally at a locatipps207g()gpi0 g5 gk6w or eem5d0kiaon where the ii 70mepkg20g ws)op5gpd(e 0r5 6gka downward 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:    
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 i7d 6. gfldiw//ye,ani s 2.0 m long rotates at a constant angular velocity of 2.0 rad/s about a vertical axis through one of its endd6,a ni /f.iweyg/7lds 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 loops and a cross-sectional area0u 4o5r2 8j 87t2lxwvcyhxs ze 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 of 100 tuw+*pq9h h x6tgs ,9xrorns 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 a+4.jzt ymu;, qeusg9 urmature. Each loop is 12 cm long and 8 cm wide. The armature rotates at 1200 rpm about anmqse+;u4.tzuy u9 j,g axis parallel to the long side. If the loop rotates 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:    
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 i:,wnt iz yqfxk6dt,0x;2 dh6 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 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 0:oeqgjv7*am i +m9j gj,k d4ua simple AC generator with an output of 12 V maximum when rotate jdu:9oam+70ejgv4 g ,i*kmjq d at 60 Hz. A magnetic 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 gener3z21 uhm bol9sator with a maximum $emf$ 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 ope)b ;z ,ucf2ftrg-knwlx-+ zq( rates 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 have a resistance of 6.00 W.p3ur42q-tkfz3z i8qk The motor operates on 1tu-zri z38f 4 3kpkqq220 V AC, and when running at full speed it 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 internal resistance 6.0 W is connected to a 24-V power su wfo.x/ wm 1f4/z7oimopply. The operating current is 1.0 A. What is the start-up curo /o7wf oi m4/m.wxz1frent?

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;dwxn jr7clu xuj,1al52rr e 3;r+k5f.0 W is connected to a 24-V power supply. The operating 1r;5a c x7rl+j jnur35 ,fxl;wuerk2 dcurrent is 1.0 A at full speed. 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 resistance 6.0 W is connectr.hqcd+gdw q9uqs t dk 6pr,w;d.8 g)5ed to a 24-V power supply. The operating current is 1.0 A at full+w5d8t ; q.d6q q )uds,rd9pgcwhrgk. 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 needed tok *.k*;c)a yvg(/y 9 tf3mm f7jdvyoxp 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 qk*wu.l23c4b2gsym fin the secondary. How many turns are in the seconduqkmy4 3bg *.s2wc 2flary?

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
78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a transformer, how many turns are necess1h5lqvm z c0t.ary in a 110-V primary if the 24-V secondary has 100 tcm5t1l.0h zvqurns?

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 ncc 97h.chydbd.7gsb o4pgx3 ndl2/ )500-turn primary coil and a 2000-turn secondary coil. If the current in the secondary is 3.0 A, what is thgn/7nbc. 9gcpl3ds7x b42dchdh) oy . e current in the primary?

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
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 100% effic: o4 f1ubimxk eh0)p(riency, how many amps atfhr(b :x0 pm4) ie1oku 24 V can flow 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 zaldkmnl935()pkn83f kc l1ma neon sign transformer provides 7500 V at 10.0 mA. The primary coil operates on 120 V. What does fp1a m5kkc(ln m 38l)dz93 nlkthe 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 and 2.*tiv58si1ww,wk5hymskw xhv 31u y 300 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary, wha 1kvhwwm*sx uiwyki,sw5y52h31 v .8tt 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 oaj 3sdv (y4;vbn its primary coil and 300 turns on its secondary coil. If 120 V at 2.0 A is applied tv (bjsd3; y4avo the primary, what current 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 transforbs; 9ihz iuh9+rehe(- mer has 100 turns and its secondary has 200 turns. If the input current at thrh- h+ii ;9hbuezs e(9e primary is 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 100 turns and its secon3jok gied e (m9m.e+-t fk1v6udary has 200 turns. If the input voltage to t6( 9ikje-d oumt. vek3gef+m1 he primary is 100 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 and its secondary has 200 tu0a y19: rz :ngob2tj*prlmee2rns. If the power input to the primary is 100 W, we can expect the power output of the secondary to be (neglecting frictional m ra*zb9ejy021rgpl on: te2:losses)

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 9 cbly1h 7gb5 ja.ru+zat 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 number of tu.jl1bg+cahrz79 5u by rns 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 t*e.pea(8dzn 0f/ i6mpajaba5av+,x 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 teav 6p.8m ae+j5zx d/ft(aanb ,p0*a ihe 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 m;7ynwjr c0foaenp:i h)) ()q 120 V. The voltage is usually stepped up to 4500 V by a transformer and trans; 7ayno0:qjh )im)wr n(cepf) mitted through a power line of total resistance 1.0 W. Find the percentage power lost in the 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 1t:v: dz9 xwx3nf.k yfresistance 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 transformer with a turns ratio of 100:1. What p kxdnv:twf yzf9:x31.ercentage 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 haet()y/4 e huismit. s8s a total resistance 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 transformer with a turns ratio of 100:1. What percentage of the original energy.4ei)yui(e s 8thmt/s 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 *: 6ydf hlst-hhu-q +cpower would be lost if t qhf:c +*su-ydtl h6-hhe power were transmitted at 3000 V instead of at 1000 V?

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 i8e6m +;eapj)fyy-8l s*g z lhss 440 V at 20 A. It is to be transmitted on a line with resistance of 0.60 ygzy)s ;lepfhml-s8 +j a*6e8W. 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 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 olo9dn8)xyatek3 :qtk9p. ip2f 5.0 A. How much energy is stored in the coil's magnetic q8p: 3o2lnxe.)k9a9 ykdip ttfield?

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 con 2ziqszbekt8ydumfb;/91v +e v ) s9.btains a 6.0-W resistor and an 18-H inductor. What is this c2bst.z+i8 zvbu1b9 m ;esfkdy9ve)q /ircuit's time constant?

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 AC circuit wherc,( nle3uw :tue the rms voltage is 120 V?

参考答案:    
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 intw5ga*:z2wo*k zt 7e(zm e 2jceo a 120-V AC outlet. What 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 into a 120-V AC outlet. What is the respjq)+g : wj: ht/f;3o8v qs mf*qzc65)pfjwwuistance of the lamp?)jww+ovg*5j fw c j/shq) 36u:; tpz:mfqfq8p

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 120-V ac power sup0vlg:pv,e tl /ply. What is the peak current thll:,v 0tv/ gperough 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 supply. What is the powerfn gpop.,b .yo4*ogv 7 dissipated in the resistpp7y*f g .bng.4 ovoo,or?

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 ix 6jl v5,i8yvuj:: wkqs $I = 0.80 \sin (240 t)$. 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--)bxkva 3ry d-.,tn-nc5lge0jd . ng nd6add. 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 resist ,x(( givbqjyn7t +:ygor 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 xtl .zq e3j j+1b)lxw8at 60 Hz?

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 1l5yta;i6l: g6dm;y( x1rtoc d 000 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 c(b va.reus5f4fg:c* 14.0-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 :.ys 9blit b f+w 1m.ypbt:sm:r9a8y y157 W of inductive 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 AC9c-6(x2 ./ eivdf egq )zkrrye at a frequency of 20 kHz is appf-x r9rkic vedgqze().6ey /2 lied 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 coil due to a 110-V, 60.0 Hz sk 2od07giy9tg5 0q yb1f g*dumource?

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-d3qdg.m0;ktjpomga 9u6cy3t9b)h 5 z mF capacitor 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;j pm *3jd8;or dhgsnmv k,b2; 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 capacm)xw*u2yqd0,)s7q:k4l m aea rgol n7 itor 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 reactan cy5 d u+mx4e/ur1)kiq m:j:otce of a 0.010-mF capacitor be 100 W?1: m5ry k4equm)ix+odu/ :ctj

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 at 10ccqg)qit/ rzbdqn5/bkgf/ y4 6l5b+ -00 Hz and 5.0 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
115#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the impedancemcgy98g (cxshs4jl2.n p+er 0 of an ac series circuit with 12.0 W resistance, 15.0 W inductive reactance, an mpscgrenyj 82g940+ .lhs(xcd 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 1p-1 lglqvi3a tz8gr0,bpz- (c00-W resistor, 20-mH coil, and 1.0-mF capacitor are conn-ia 3lpvlzt(80b-zg , crgqp 1ected in series?

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
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 hkzqxk-;91vo if a 100-W resistor, 20-mH coil, and 1.0-mF capacitor are connected in series? ;x h-zqv9okk1

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 resistorn :drxu0fc ;6skn x;d, is connected in series with a 20-mH inductor, what is the impedanceku 6;nd, c;ndf0xrxs: 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, whatwsywb dj9nv+clppp4.8c: ; 3z is the phas.;w 4zc 3wjb89yldvcp+ pn p:se angle 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 circuit with a 20-mH coil and 1.0-lr,oai,j rd2 m6z4;w- py d3aimF capacitor for a total impedance orio-d ly ar26iaw jp3;4z dm,,f 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 capagk 12mc8 t51v-bk bo)1 ;har;ddhwksjcitances is needed in series with a 100-W resistor and 15-mH coil to get a total imp5bh;-gtb dcvmk1rj1 d1o 8kh w)a2sk;edance 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 wi;7ux(6nhlfn hwclj2 +b-xs.mth a 450-mH inductor at 5000 Hz for a total impedance of 40000 -xm wxlc+nl .j7uh6 h;b2n(fs 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 for a -4rv;r zwxmfcox er4z/ p*7e(total impc7p(fw 4r vrz-meor4z */ex;xedance of 150 kW?

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
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 capacitor. What is the imv hy. 0 q9b8gtdz/hwf(pedance at 1000 Hz?tqz8.(wgydb/ hfv0 9h

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 with a jy4-f0fdif y w2h7 7hm10-mF capacitor at 1.0 kHz for a total y4wh hj0d-ymfi7f7f2 impedance of 45 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 nex/e r6:yrp g/oq t)ph*/c*iyreded in series with a 10-mF capacitor at 1.0 kHz for a phase a o*yx/e hpgt6/*qrr)p:cir/ yngle 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 series with a 30-W resistor at 1.0 kHz 8 i * vb3w3 x3-ozwg d4ja4g5mnlbmlw,for a total impedance o4 5*gm3zv-i3g mwwxl, d 83awb4b jlonf 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 capacitor at 120 Hz. What /tfy96 wvvu;eis the phase angl v;6yv f/eu9twe?

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
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 resistor, 20-mH coil, and 1.0fw j /iv wp9nxdu)bo(5r 2qs:6-mF capacitor are connected in seriesbw25v: 9fxn udw)jsrip6o/q( ?

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 conqqx1k 64 wver4rt kr3:sists of a 100-W resistor, a 10.0-mF capacitor, and a 0.350-H inductor. The circuit is connected to a 120-V, 60-Hz power supply. What 3rxerrk14t46qvwkq : is the rms current in the circuit?

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
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 capacitive reactance 30 W, and++ti)tqz.kg iikm3wc0x)o4w *q y 5ud an inductor of inductive rq+*dtg3xioy q k)0w u+z ckim4)w5it .eactance 30 W are connected in series to a 110-V, 60-Hz power source. What current flows in this circuit?

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
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 circuit containing ut6peu r kepn391ox ngl.;, tb.w)pb .a 50-W resistor, a 10-mF capacitor, and a 0.45-H inductor, when connected to a 60-Hz pg; e3n..wuonl69tuxe)k,b r.ppp 1bt ower 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 i878kp8i xch wxn series with a 500-W resistor for a phase angle o8hpxwk78xci8 f $40^{\circ}$ 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 = 10.0 mk4ucq+/qv cn: f 2h1 (lysinw:F. At what frequency should the circuit be driven in order to have maximum power transferred fc+k/c 4 nqflqsu(2n:wyh 1:virom 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 outn heh58bm/eq idw 7yws0kt frd52 ;1x(put in an ac series circuit with 12.0 W resistance, 15.0 W inductive reactance, and 10.0 W capacitive reactance, when the circuit is connecte0f kbeqw hy;nim1r2e wdh(t/d75x8 s5d 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 cir,ycexlb2z:sf2f2ib 3 cuit 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 n/;krrs1aiskva1 )m (60 W and a resistance of 30 W. What is the power ki 1vnsa)srmr k; a(1/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 for a series RLC cirfqaqlj*y( l0)nb( s4g8 v/s xkcuit containing a 50-W resistor, a 10-mF capacitor, and a 0.45-H inductor, when connected to a 60-Hz power supply?l(qgx(0v/y jq* lb 4a8s)nskf

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 f9sws8z c*ob)/td9z4 iq*jt tq8dx7kr)klk 3 wrequency of a 1.0-mF capacitor and a 15-mH coil in series? tlxqc*zorb3/89 s*qiwk sk9dj)w)k7ttd 4z8

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 with a 4.7-mF capacitor for a resonant fro6-9n,halhbh0+ y edn equhn,lhe9a 0 by-oh 6d+nency of 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 needed in series with a 7vgv,b vb ayw4s7t 2(au9pf:h 3.7-mH inductor for a resonant frequsv:v w(ha ,7t27fuvpb b9g4ayency of 1000 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 serie.l w dn9x25g8kucz4r js with a 30-W resistor and a 40-mH coil if the resonant kxdu4zclr98jg 2n .w5 frequency of the circuit is to be 1000 Hz?

参考答案:    
  • :
    •
    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, 2025-3-7 10:32 , Processed in 0.700327 second(s), 305 queries , Redis On.