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 flux *03hmq*3c osm rz oz9ewb+p6lexcept

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 states that sxq gp,+ so;p,,q3udn 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 y+qu3m wk55nfof loops of wire in a coil produces what kind of change on the inny5fum+5q 3 kwduced $emf$, 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 t*qia k+w,af 839nprdkhe magnetic field through a loop of wire produces what kind of change on the inducea8 d9k pwfr+,*kan 3qid $emf$, assuming all other factors remain 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
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the diameter of a loop ofn7 rkt i0il85d wire produces what kind of change on the induced td7n8r5i k0li$emf$, 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 magnetic fit82 )8zevdbsh qulv/ 2eld 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 direrx4ni( yo-2 jc tf p5 d1lf2g3xn,gd4mction of an induced current in a conductor will 3(p1dn4nlxtfrg2x4yc2g om f , ij-d5be 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 flatpo v2x7hfahan(sva 41 j d55a: on a horizontal table. A bar magnet is held above its center with its north pole pointing down. The stationary magnav:4s5a5nja vfa1h7hx2 (o pd et 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 lies flat on a horizontal table. vl.ei1qi-dvgd 6o 1 gpc173ab A bar magnet is held above its cenpd13o.1bca 7ivgi e 6d 1lqgv-ter with its north pole pointing down, and released. As it approaches the coil, the falling magnet induces (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 6drcen u r7m/z s b;-g9i5mf)otable top in a region where the magnetic field vector points straight up. The magnetic field vanishes suddenly. Whdz /)5m-gi9rofrbnes 76mu c;en viewed 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 level9 +031+n7ys whbr hxvymrke;l table top in a region where the magnetic field vector points straight up. The magnetic field suddenly grows stronger.9shke+ bw; hlvy 0 y1rm3nr7+x 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 region wheroiy, +;jp *)5xa- frf4v.srmdw g(spre the magnetic field points straight down. The magnetic field disappear;)vf+mr*wgj a 5s,rxi fpysr d.-(4p os 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 everqk17pi*vrz o2 -increasing current northward. Two coils of wire lie flat on the table, one on either side of the wire. When viewed f*7 2kovq1 pzrirom 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 wi ki()pmwt8q8kjez 4 c8th the north pole entering first. As the north pole enters the wire, the induced current will be (as (pqkc84wkjmi e)zt88viewed 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 angular speed about an axis whosanmk4 q+cz-1w qq;j-p e direction 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 rwc +;q qp4- najmkzq1-otation 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 abou rcx af.lk) wwkvb53zd *87b+kt an axis whose dir.fbrlbw3* d8kxcv 7w)kz k+ a5ection 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.q -v w/3.e 4t2mnng5n7wjk ite
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 t jzuq 1/;j.biqi .ti.pr 8i:izhat 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 magn cvz74bsu 7xl+etic field. 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 eatsr5ox+.z 3ppst-west direction) is moved northward at constant velocity throupr3oz+s xp5t .gh a magnetic 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 consta h/r/qxs;;y lwnt 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 tra0pjdq /yp4kl.nsforms

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
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 xrxlq.)g;zng f2v ((3pv . p2xh)xk q4axee 1gfrequency of the.(x 2.z2;pxr( )gx)xn qv g3vg1f hqxeap4 kle $emf$ 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 devicetft.2 k+z 8zvb8u;wlu 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 devicvnq,-u3 x9esm6 3kh*jm +bwi ce that

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, ifc*f.+euf9ehm7 z ne* y the secondary coil contains more loops than the primary coil then itme*7 f nec+yfue z*h.9 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 moretl1yz i:* uz)n loops than the secondary coil then yzn t*1:uzi)lit 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, thzo 3 7zpnx9g zs9om2k,l8gg-je 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 resonant89istc7 . v;)nfqegfd circuit,

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 o26sy1ou,t 3x+ctl g9c( ; ewbqkz8 afin series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the resist 1l2b (;attgw cyzeo c,k fq8oxs9+6u3or 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 es ed0f)dw-k c27* xnu5wzx.sseries to an ideal battery of constant terminal voltage. Atsd5cue2 )-kn*w .0xs7wf e zxd the moment contact 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 inductance L and resista4qpd** wy hc 1.pdqny;wsnl47 zl19fwnce 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 resiswirc):y5lpo 7p tp7:mfy(h5 w tance 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 a battery. The time l,nn;vgw04r3 ziv:fm constant ;fvwvm g,i43n0lr :nzfor the circuit represents 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 indxcb)i4 /8gxt o3 frkj-uctor are 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 jkb8xx f- cot)3gir/ 4for 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 excepthg,h)bf f ipz3)tlx6(:

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 po+cgx nffjfk/gv db + +e(dq)5+wer 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 powao .-q f:r* oa vlyrygy7wn8-/er supply. In this circuit, the currentyyoaw:nvyrr aqgfo*l8-. 7- /

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 a4(pv)f)snzq0g k h 1eo9 fj9*y8nftov n ac circuit changes by what factor when the frequency is triple 0oof8z*9 9n(t gy qh)svfp e14vjfk)nd?

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 in3 0q gmmyv)gh2ductive reactance of th y3m qghv)2m0gat inductor

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 AC voltage across an inductor approaches zerewfcou5dm j/; -e.a op. ss*w6o, the inductive reactance o dujp 6oae./fsc; *ws- oem5w.f 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 circuita*ohxv5 v5 ba7, the curre7vxbo5 5ava h*nt

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 izy :y/4i7kqzil)etmn92 t lk;n an ac circuit changes by what factor when the frequency is: n k2tl4zy7zy9 t);iilekm/ q tripled?

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 Ab:k.j d 0 7wsx01cv sdubkub1y;.uhj; C voltage across a capacitor approaches zero, the capacitive reactanckcbvbhj sxd;w;:u0 su.1by . u0j17dk e 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 voltages of the inductor and capacitq ;eeaws5xiq.(ly )c) or in a RLC series ciwe;x()s e.alc qqi 5)yrcuit?

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 de .o+voes;u nxcx8q 5.)ex z 27zh;iiiyfined 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 circuitp(xl z /oqpz6wej-.4t increases if R increases. When is this statement tru6p/ etz.w-(pjxzo4q l e?

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 increases if n; ;zx:feq3yw $X_L$ 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 impez(o )6rt1,oa3 uyd hxuii7a*sdance 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 capacw prv:9d 4f;nh y0.nzwu l69iditance both double in an LRC series circuit, the resonant frequency of t rnwdldv6h 0:.u9 pfn;9zw 4iyhat 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 is driven by an AC applied voltage. At resonance, zwi4p je7zwd 2-mg3z,

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 R pqt)n4iu/ m/rLC 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 radius 0.10 m is i(787tu/ 4hvao,cbfej nsbw 4l q89tqrotating in a uniform magnetic field of 0.20 T. Find the magnetic flux through the loop when the plane of t /8wq7ea4s(n9 c,v8tblhj buoi7ft4q he 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 fie. 9zccv;+mp-l spf7y rld of 0.20 T. Find the magnetic flux through the loop whenpsr. 7;f9+lcp cv -yzm 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 rotae tccsi5- .(oxting 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 are at an angle sc5tc.-eoi x (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 loop is reducedhw fqu-1 2m5sz 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 change8;u avtu (4n1 lgn6huxs 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 square frame with ; f)a sfv-bfcjsdog/ez4/+ w(sides 18 cm. A uniform magnetic field is applied perpendicular to the plane c 4;fa-bw)osg je/v/szfd +(fof the coil. If 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 15 turf+s qt,mii r7h6+;rqens 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 j ,aol)3l +x4uud2edxand 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 horizontally at a locatvh hp p34p.,6 xe+/or 1acztlrion where the downward co4ro tpzlvh+ , x.r3c1php/e6 amponent 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 2.0 m long rotates at a constant u)vqk:d 5c1ol angular velocity of 2.0 rad/15 ul:kc)qdo vs 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 hy38oqkvk79 io+f* )tln* y 4mqaecm b7as 50 loops 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 consists of 100 turns of nd. 9ca0bh6g cwire 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 armature. 27at ghbrj/8o 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 perpendicular to the axis of rotation, what will be the maximum ourj/o27g 8habt tput 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: gphq29*c6a*nz6qs*w5qo mxt ohf0k 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;qj zx:m2jm4s) 3qvl n construct a simple AC generator with an output of 12 V maximm:j4j)mq3nvz; l2s x qum when rotated 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 gekrwgwll 5 r.frk14 8)tnerator 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 resikj 6j, zjcj)i. hamj*5k wmrs9*7n: dbstance 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 tdy4 bi-p.,(nuh1nbj6.00 W. The motor operates on 120 V AC, and when rupbijhb 4 nudt-,1n( y.nning 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:    
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
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 slpw6v)z i5is ++ mbh4tupply. The operating current is 1.0 A. Wh6pw 4)hlvmt5 z+is+biat is the start-up current?

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
74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A DC motor of internal resistanceih9vh-e w, p :e/p9ab ymuq5j: 6.0 W is connected to a 24-V power supply. The operating current is 1.0 A a- 9hjqh pe/,9uw paei:5mb:vy t full speed. What is the back $emf$ when the motor is running at full speed?

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
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 connected to a 24-V powyzw8 l wa5vg(*er supply. The operating curr 58v zgw(way*lent is 1.0 A at full 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 neededr4z xv 0kf*(oe 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 primf )4d.rowdqr6u khmnp649 wb( ary of a transformer causes 14 A to flow in the secondary. How mak rm6nwqo.9d 6u4hrbp4wfd()ny 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 vw 4snt/i9t:g;y j r5y8vus:a are necessary in a 110-V primary if the 24-V secondary hr 4g9avwjy5;tvy8n:/ u si :stas 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 y8b mpyt-r:m0) w. ekaxu5eh.coil. If -5 8p0eyywmxmr. tbek):.ahu the current in the secondary is 3.0 A, what is the 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 primarye() k)*chacv4a 2mts f of a transformer. Assuming 100% efficiency, how many amps a 4e)(*h2 f)stkmac acvt 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 a neon sign transformer provides 7500 V at b w)h+bgy:wemdls ehzr2.v+me15 i-/ 10.0 mA. The prim /2 r -yi1+ezml :+bwhdveg)sebh5.mwary coil operates on 120 V. What does the primary draw?

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
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 coik0adg 4/-9 n nid/r wn33zqtxtl and 300 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary, whaw30 kt9gx ddn3/aq nnt-/iz r4t 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 5plwu.tnn ide b) 0s+7primary coil and 300 turns on its secondary coil. If np7d5b il+wunt ) 0s.e120 V at 2.0 A is applied to 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 transformer has 100 turns and its secondary has 200 turns.zjgny:3wnwajr/hl, ,7e35w cew z1;p If the input curren zpynhjacr/w;e1 ,3 , 3jgwezw7l5nw:t at 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
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 secon*jq glh)ac 1:ndary has 200 turns. If the input voltage to the primary is 100 V, we can expect the :jgnhl 1)ca* qoutput 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 transforme bvx qvqf;:cf/m908zo 6hfsv 3r has 100 turns and its secondary has 200 turns. If the power input to zvfv0 sq9 o:mcqh/68 fv b3fx;the primary 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 A of current at 120 V. The voltage is usualw i,fgah -*w--mvlx4 xly stepped up to 450m4 a xxiwh,*-w--g vfl0 V 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 is usually stexnz5 * ehabp 2chniu2.t*8,ptda/r 0mpped up to 4500 V by a transformer and transmitted through a power line of total resistanc*p58z paix ha0*.rth2d nbe2t,/ucnm e 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 s)wz8gd 3x 02 ,tppt 5drp:nts1ojd)iof 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 transmission line if the voltage is no2)j s8rp :pnztwp)gidd1 t,tso 35 x0dt 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 line9/ nb)d/vybhm w*o +gfv7; vkz 50 km long has 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 1 k 9;/zby g)v*7fdhwo vv+nm/b00:1. 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 Wc,tb 9gexg;f j x-48a8dchesp ; 9uo1m. 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 tranf41;hsa ucebp ,-odxx gce9 9m8t;8jgsformer 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 muchs-xgcpwah:pw)a 4 mw1.3 n+ 2zm1trmi less power would be lost if the power were transmitted at 3000 V +sgm wp w2znrwmm-at hx34 a)c.:i1 1pinstead 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 440 V at 20 A. It is to be tranpcd ,x3- j9h hd+,xj qprcq( q9-dxze-smitted 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 hx93+,(qdc-hz d jqd-,x x-cprjpe9q 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 currenlr 3j 4uk+wfb picg+29t of 5.0 A. How much energy is stored in the coil's magnet+ ck+34fbw2jrp9liguic field?

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
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 resistor and an 18-Hrr 2os ;g1.uxa jpeq :5u9.fmt inductor. What is this circuit's time x:e15g. fjuso pam2.r r;t9uqconstant?

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 where the rms voltage is 120 Vm yfrh q(.2o1(ptgdb2 ?

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. What is the peak cuqrsy d5+40c13 zjb: skmkmks;rrent?

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
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 osvr+i6r5o+i uf the lamp?+r5 +sviir6uo

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 c1by:fqm -sxu6- 5k1nh aa 7piqonnected to a 120-V ac power supply. What is the peak current t- a s 1kp7-muan51b:xy6qfh iqhrough 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 supplj(fspo9snie e p 4gr0/tme 29(y. What is the power dissipei(p 4m( 2ejfr o9gsnt0s9 e/pated 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 resistorz1pu8vl-ugm 6 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 resisuupwm* s;x +nyejr,34 tor 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 hsu03(hqwu py 4or(gg6v*c,a resistor 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 i+ ojr/*(t xba0 :ipls1.0-mH inductor at 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 reactast1 e ds(s cqw-1;db43 pbqkuq45atyd+(msy7nce of a 2.50-mH coil at 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
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 inductive reactancedvo-qv/d3w/y 4 m z:+(aqkajw?

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 reac: mpt 9c.pbjuo f lm8.a,c78 nw8o:meltance at 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
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 1 o3xq7d8 s0,lno61ur oe7vjn o20 V AC at a frequency of 20 kHz is applieo o,n167djq u8n vsrxo 7l3eo0d 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 2 sz6w*pphd ar),k cilt8q:k6to 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-mac2i khpg rx65vd((1-6 dmnk hf ,slt6F capacitor at 10 kHz?

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
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 at 10 kH dnw.kcw7u(q2a k*10jf,ea6aab4 f0e ny h w8vz?

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 capacitor have a rf mh2ql2sth;mgck7*8;2 sxekeactance 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 reactance of a 0.010-mF01lm,mmmxj2p tz m m,3 capacitor be 100 W?pt0ml,mm2xmmz 31jm,

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 capacit* zm /j+-ox-yklmzv 6wor 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 W resistance,j kb9k f k+sw3m(+o7koj :-jio 15.0 W inductive reactance, and 10sjojjk7kw +f( ko3: 9-+ob mki.0 W capacitive reactance?

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
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 yi5+:h zkqh p6f70zppa 100-W resistor, 20-mH coil, and 1.0-mF capacitor are connected in s0+izfqk5zphhp:py 7 6eries?

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 1.0l4 m utyn 7dkd05dn4c+fr6 5ny7l 1e41nxvef k-mF capacitor are connectedy 754 k4ndex7l tyfnr f1ddum5c1v+n lkn604e 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 s/q0n- ,n ugk*jsj7ud7mkfa 8deries with a 20-mH inductor, what is the impedance at 1000 Hzudn7* 8jsqkg dj/0mu,7a-nkf ?

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 in9z(z ik2ma9i zk 93idmgru5 0yductor, what is the phase angle at 1000 Hz?2i3k9mg9z5dai y9zi(m0 kruz

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* qyrc5(ubsd-3 a-dco -mH coil and 1.0-mF capacitor--db u q o*35csyd(cra for a total 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 capacitances is needed in series with a 100-W resistmivj.osqtr ,s4r, *u)or and 15-mH coil to geq*t.m is4r,ov)u, sjrt 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 45+p n7iqlna6c, p4bsn/0-mH inductor at 5000 Hz for a total impedanceq n 47a/+npblnc 6,spi of 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 seri:.lqr2zorx7x cl nh( ocx2,mc:k6, e aes with a 100-kW resistor at 1.0-MHz for a total impedancer rhk7 ,.cml2ae (2zx,occonqx:l: x6 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 thd +(apqphk:+q e impedance at 10h qapq: kp++d(00 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 with a 10-mF cl g)mqvdl+a-t .cs;f2apacitor at 1.0 kHz for a total m) v. c tal2+lg;-fdqsimpedance 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 needed in series with a 10-mF capacitore8bi mt 67 r1 xoh*q,7gn5qwhb at 1.0 kHz for a phase angl7*bhq, orhexg 6 5qbm7wnt8i1e 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 kHzkra*c am 7wsup(15sf) for a total impedance of wcms* (r u75aps k)1fa45 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 series with zgu*as5(9rlh 8c;j )ml rkr5ga 100-mF capacitor at 120 Hz. What is the phase anglgz5r *9lgu85 lrrms kc)a;( jhe?

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 /l3:gb vna9zd-W resistor, 20-mH coil, and 1.0-mF capacitor are connected in series?v/l93abnz dg:

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 ak7g 8ds+fivr)ll689,j wwhyy 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 is the rms current fr 7) gl88y9wkihwy6v +,jsdlin 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 capa)kkawgl;r : 0dcitive reactance 30 W, and an inductor of inductive reactance 30 W are connected in series to a 110-V, 60-Hz power source. What currealk kr) gd;0:wnt 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 seri xd,3 ,0 upcsghq.o6z3g-lz iies RLC circuit containing a 50-W resistor, a 10-mF capacitor, and a 0.45-H inductor, when conn,q,3iud l0zsp6 .3 gcxi o-zhgected 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 nece : op qpir8-;ok,-rlzh0bzw *ussary in series with a 500-W resistor for a phase angle ofkb - p o: 0-hrrou8pq;,z*zliw $40^{\circ}$ 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 f; s-*acsde0 m.xf,oi= 20.0 W, L = 200-mH, C = 10.0 mF. At what frequency should the circuit be driven in order to have maximum power transferred from the dsf s a0oc,; -.df*mxeiriving 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 v4ri :90h e3,ual:le+zh2n6lhf 2a hx)kaldyac series circuit with 12.0 W resistance, 15.0 W inductive reactance, and 10.0 W capacitive reac fyh:hxhl9a dula+nezrk2lle2 a)v360 :4 i,htance, 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 circu /5xntppku .k 0jk;xc0it 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 rgfo;(q oz 47u hkhjh7 -)i.7j5e qor*f)l pouzesistance of 30 W. What isuo4 .7hf)e 7zj*-5 koopq gj(r luzohqif)h7; the power 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 co*ex nd1lk4 ov8ntaining a 50-W resistor, a 10-mF capacie*x4 d1nok v8ltor, and a 0.45-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 resonant frequency of a 1.0-mF capacitor and a 15-mH coil in seriuu41gze2htr1bq )w n. es?q1u h)z u41ngr. 2tebw

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 99oiypxag -w,a 6oj7ya 4.7-mF capacitor for a resonant frequenc-w9igo7 y, o ajpyax69y 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 3.7-mH inductor for a resnde00toc j: ox698jb+tcrk5fm 87huionant frequency c 7ke ocmbj n69uixhf0o+5tt8rj :80dof 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 series with a 30-W resistor and nwk;e, sqia80we m y+8a 40-mH coil if the +8ee,0y;8amnsq i wwkresonant 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, 2025-4-4 06:38 , Processed in 1.087600 second(s), 305 queries , Redis On.