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习题练习：Physics Unit19: DC Circuits
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 77 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/test77.html
 作者: admin  发布日期: 2022-08-17 15:49    总分: 102分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月17日 12:52  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference between the termk 7(iq zwp-ynl;,xd )tinals of a battery, when no current floiq(nyd7 -;wt xp)zl k,ws to an external circuit, is referred to as the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference between the termin;j bb(r:n*qaira5k*x9 ng7 xuals of a battery, when current flows to an external circuit, is rei*b9 jrxaab(uq;*:xk 7g5nrn ferred to as the

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected in series7fvwi,ybll 10ga 1hs: to a battery

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are con85fm 2kj5f tpdnected in series,

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected 8 gi 9m)lc*2nfpz0 xo+8qe tnwin series to a battery. If the current of 12 A flow eg8xmw fn*pz2q089+ol) tc nis from the battery, how much current flows through any one of the resistors?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistor1):5 s ial hyxkmpx4.ytc i:0qs are connected in series to a 12-V battery. What is the voltage across any one of the resist 0xhqicai x1t: .l)y:m5sy k4pors?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You obtain a 100 $\Omega$ light bulb and a 50 $\Omega$ light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. Which statement is correct?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in series to a constant voltage source, thezrgdcf96vbt y q.*ni n /l:7o; power supplied boq6 dc.rv/9;*zygb7 it: lnfny the source

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected in paraldv+420ij qmig ,(mr golel to a battery,

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected in paran: xgcnyv 7r5awk-i-ts9.3u q tgvz/sk4 w,s3llel, we can be certain that

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connecte1d 6c0c6hsi+z h,rao yd in parallel to a 12-V battery. What is the voltage of anyih6 o+ hazcr,6yd1s0c one of the resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are coc-eba:tjn:e +) hclljs (0t,l nnected in parallel to a battery. If the current of 12 A flows from the battery, how :lj bt(-h: 0e+tjl)l acec,sn much current flows through any one of the resistors?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lamps in a string of Chrisnf0 (: ,r2)fos zrk ijhdc-o)wtmas tree lights are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wiresn,0 fr o hcr:f i-k)sj()dz2ow leading to the lamps.)

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in paralle-4 kwmnua- r:(ljtb 0ql to a constant voltage source, the power supplied bu -mbt:w0a4(qlr- jnky the source

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identical resish g l7(da) jzswl51ah-tors, each of resistance R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected i5wg l daahlsz1()7h-j n parallel with these two. What is the maximum power this network can dissipate?

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16#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's junctios*e fuqh5;z m 7;xyi9tn rule.
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's loop 3 l)dzd/ g:gyyd0 ,n+yymzwc(rule.
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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's loop rule is an examp,ok)l hzh o33fle of

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's junction rule is an exz +.m.f5wycfh ample of

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the equatio6ydtdm:rdr c 1)g-s 3nns here is valid for the circuit shown?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries tot )l* xoip;h5lgether in series ("+" to "-" to "+" to "-"), and place them in a circuit, the combination will plx; oi) l*hpt5rovide

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identicalud (tr7b (4j:2 5lqy4a*jqga vc0ylwa storage batteries together in series ("+" to "-" to "-" to "lgbj:7y*ja45quld w acy r2 tq4av0(( +"), and place them in a circuit, the combination will provide

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical s 6mk48rlry l7nv m+ jr2d*4fdwtorage batteries together in parallel, and place them in a circuit, the combination will pr4f 6r+l *vjwl72mddmkny8 4 rrovide

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in s :b3h/px4 vblmeries to a battery,

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are connected in series, the equnyx9 lw 4 i(pn5j.ff-wivalent capacitance of the n.nip4w95(f-yflj wx combination increases.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connected in series/hdjbp gq dq g/5h4e54 to a battery. If a total charge of Q flows from the battery, how much5pdedg qhqjhb4/4 g/5 charge does each capacitor carry?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in parallel to a batte1zc6o7yi sggj(,dc 5 mry,

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are connected in parallel, the equiv1rsoo* r7* gyxu*3zjnalent capacitance of the combry *urno1oxg7s**zj 3ination increases.

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capaciv /v/(w)u4acc+nm2zvm uvyv+ tors are connected in parallel to a battery. If a total charge of Q flows from the battery, how much chargy+zcv(vwa v/+nm2mv/ ucuv )4e does each capacitor carry?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the unit for the q k ,9at2:ap wmaxsdaa7 g*y3y6uantity RC?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of consta lls yhru5r)wz;f 7*j4nt terminal v z5 ;h*sl4urfwjlr7 y)oltage. At the moment contact is made with the battery, the voltage across the capacitor is

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of const s)vnkr.pc(4mant terminal voltage. At the momkcm 4 s(.)vrnpent contact is made with the battery, the voltage across the resistor is

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery /ixxqu w/4ee4rf9o ;a5w *cwmof constant t *a 4;w/ x4q5fe/icewu9xormwerminal voltage. When this system reaches its steady-state, the voltage across the resistor is

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal ammeter shou +d 2b-qvbh:rkgkv:l;ld

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer can be converted to an ammpc(j mo2uy20x.xra vm v.4q)j eter by the addition of a

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A current reading is obtained by properly placing sk tqntxeg0./gv107 ih q. l;aan ammeter in a circuit consisting of one resistor and one battery. As a resu1ae. sv. qn0gttk h0lq7x ;/iglt,

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Decreasing the resistanchui.(sw7 w pq3e of an ammeter's shunt resistance

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to construct a voltmeter from a galvanometer, one normally w0/k g(s3k vuztould

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the resistance of a voltme. k ybp hnu/t3dp4i+.tv )db1pby60lyter's series resistance

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A voltage reading is ok b 9z-n:d0 .mvzv ghj8cf5o0cbtained by placing a voltmeter across a resistor. What happv g-oz.0d: mhk0j czv59nfcb8ens to the total current flowing in the circuit as a result of this action?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wired in series with an ammeter, and a voltmete( qo6q.ivf* y 1ruqh(qr is placed in parallel across both the resistor and the ammeter. This network is then placedq1qqq(.o(6iv*h ruyf across a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wired in serihl grop2kdn(/ lz5: q:ht18gk,;lrsjes with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtat ::r/;(h8op5q ll1 g , 2jlkrdsnghkzined

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 20 $\Omega$ resistors are connected in series. What is the equivalent resistance?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four resistors of 12, 3.0, 5.0 5-r8jgak dt1t, and 4.0 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12,kqhj6sy i-ti18nv*6 y 12, and 6.0 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12, 12, aw /j- k wo/ w.5.e*quhkezwh1ind 6.0 $\Omega$ are connected in parallel. A 12-V battery is connected to the combination. What is the current through the $6 \; \Omega$ resistor?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination of yo)9ekq a 8h5 utlht:2a 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 4.0 $\Omega$ resistor?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination of ajgsz*rbd (kx2h s72o/7g tkh4 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 3.0 $\Omega$ resistor?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows 8c1 -kbea.ynz3 7nqwt*6japq3*g xjx into a parallel combination of 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 12 $\Omega$ resistor?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parap6 mqo7p7(m-ylqcuseoc )2a6llel combination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 6.0 $\Omega$ resistor?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combinzl((i yv/ld ;pation of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistor. What current flows through the 4.0 $\Omega$ resistor?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0 $\Omega$ and a 12 $\Omega$ resistor are connected in parallel to a 36-V battery. What power is dissipated by the 6.0 $\Omega$ resistor?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The following three appliances are connected to a 120-V circuit)1bxmbz+dum9+ p i. y,xlv f6u: 1200-W toaster, 650-96lxymub ++x ifumpd)v ,zb.1 W coffee pot, and 600-W microwave. If all were operated at the same time what total current would they draw?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the maximum number of 100-W light bulbs you can connect in parallel in-(:ur*xs;udf5vjlo8j4e qz7 pj cli+ a 120-V circuit without tripping a 20-A circuit u j:;5lje8lf*odijzsxq- r7 + ( vcp4ubreaker?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A combination of 2.0u;n2s 1qe5qg5rht (vq $\Omega$ resistor connected in series with 4.0 $\Omega$ resistor is connected in parallel with a 3.0 $\Omega$ resistor. What is the equivalent resistance?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two 4.0 $\Omega$ resistors are connected in parallel, and this combination is connected in series with
3.1 W. What is the effective resistance of this combination?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0 $\Omega$ resistor is in series with a parallel combination of 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What is the equivalent resistance of this combination?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 15 and 30t(ldk0o /)*ror oh s,e $\Omega$ are connected in parallel. If the combination is connected in series with a 9.0-V battery and a 20 $\Omega$ resistor, what is the current through the 15 $\Omega$ resistor?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 4.0, 6.4i,f vaivjwx )l:9dp90, and 10.0 $\Omega$ are connected in parallel. If the combination is connected in series with a 12.0-V battery and a 2.0 $\Omega$ resistor, what is the current through the 10.0 $\Omega$ resistor?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 xt /z(lsu kfy1i0pu9krvf *k(ys, 85land 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 4.0 $\Omega$ resistor?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 and 9tkk1wv h, i8xa *.afj+n )97ufmv- gcc.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 5.0 $\Omega$ resistor?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 and 5an51alzh/cz 2 zaxf:9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 9.0 $\Omega$ resistor?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.0 $\Omega$ resistor is connected in parallel with a 6.0 $\Omega$ resistor. This combination is connected in series with a 4.0 $\Omega$ resistor. The resistors are connected to a 12-volt battery. How much power is dissipated in the 3.0 $\Omega$ resistor?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total resistance of the cir sz qdaxv xfh6-lm7h761( 8zug/nh,j jcuit in Fig. 19-2?


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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 40 \; V$, what is the voltage on R1 in Fig. 19-2?


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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 20 \; V$, what is the current through $R_3$ in Fig. 19-2?


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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If 1.5 A flows throud; q bcur06(phd34-.m cagsplgh $R_2$, what is $E$ in Fig. 19-2?


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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total resistance of the circuit i detm 5ok 4z0zo(16yuax-m2w tn Fig. 19-3?


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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 100 \; V$, what is the voltage across $R_5$ in Fig. 19-3?


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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 4.0 \; V$, what is the current through $R_6$ in Fig. 19-3?


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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 17r339 i mlqstai .fv+j9-4, determine the current in the 1 $\Omega$ resistor.


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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, detpox98 zrge- g-ermine the current in the 3 $\Omega$ resistor.


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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determine the current in m1op;n(gf0m t .ewm3 jf+ rziw69u,a vthe 4 $\Omega$ resistor.


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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point A relative to poind 8cekux81,2 4v dwqzvx0 9s;xnuy( sot C in Fig. 19-5?


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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point B relative to point C in Fig. 19-5?2716by o8xd1 gblrtam


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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of poinz(a-6bxq 2q)w3fq fmbt D relative to point C in Fig. 19-5?


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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows from the e4.nbytxj/(kzq, l h uhn). r5). xawpbattery in Fig. 19-5?


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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential drop from point A to pon i (h1xaaw6v cct07)j3o5egm int B in Fig. 19-5?


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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the)9b)f-c t2vwia0e/zlm on x+q 7 $\Omega$ resistor in Fig. 19-6.


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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 8 27/9cdjzyz cyj8g1r;ofregc -3 tgy; $\Omega$ resistor in Fig. 19-6.


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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 4 l8 b yp1c)ria/$\Omega$ resistor in Fig. 19-6.


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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in then s6);tt 6awqm l hge 5h3eztlv94r,r) 12 $\Omega$ resistor in Fig. 19-7?


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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows ilymen60v.qstsww mq7 27a /t0n the 18 $\Omega$ resistor in Fig. 19-7?


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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the solid wire cfuhwap43 h , pg-t jx:/8j+jouonnecting the upper left and lower left cornersguh3xf-p,jj8a4/ t h+:pw ouj ?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 16 mF capacitors are connected in vt y1:ycwd8;- l .c+ijsw y u5xkpnd,9series. The equivalent capacitance of this combination ,5 .+pcjc-indy utyyd v1 wx:9lks8w ;is

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.00 mF, 10.0 mF, and 50.0 mF capacitors are connected in series ai 4t+( qh*7pbwh* zynb fd*3efcross a 12.0-V battery. How much charge is stored in the e*dtnbpbz*hqf h(34w+*yf i7 5.00-mF capacitor?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.00 mF, 10.0 mF, and 50.0 mF capacitorbh 5n-oa5h4 p(n qqv7es are connected in series across a 12.0-V battery. What is the potential difference across the 10.045aq v(qeb hnon7p-5h-mF capacitor?

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacitor are connected in series across a 3.0-Vc4tb9 t1ayfm ;a,v9yv j x)hl- battery. What is the voltage across the 1.0-mF cxyv4ym9-ja ,1 albthv) tf9c ;apacitor?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacitor are connected in series acrossgg.w.(hc:tc8 7ux:ptrd p,yi a 3.0-V battery. What is the voltage across the 2.0-mF capacitorc: i ttgwg.(,d :rpc7up8xhy .?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1.0 mF, 2.0 mF, and 3.l ktyuy;.+(tj8n a1u y0 mF capacitors are connected in parallel across a 24-V battery. How much energy is stored in this combination when thk8y+(;ylu1u. tnty j ae capacitors are fully charged?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Capacitances of 10 mF and 20 mF ar 4bg79g8/uyrqqew,lv-fyw )d e connected in parallel, and this pair is then connected in series with adyufq v 8 el) 9gb4w/,qgyr7-w 30-mF capacitor. What is the equivalent capacitance of this arrangement?

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92#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connected in parallel. The combinati(wq 98kweoojodg-4-m .mvcw4on is then connected in series with a 12.0-V bat. 4( -evodc 4wo9q-j mwomkwg8tery and a 14.0-mF capacitor. What is the equivalent capacitance?

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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.qd8m o br zd/u 0f4yy 35/)zisvv4xs+f00 mF and 8.00 mF are connected in parallel. The combination is then connected in seriesf43/ zvom xu4i5 yy+dd0vqbf8z sr s)/ with a 12.0-V battery and a 14.0-mF capacitor. What is the charge on the 6.00-mF capacitor?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connected in parallel. The combinat+ls+r 56tou-u loa-rq ion is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage across the 6.00-mF capacit- su+urao 5ltor 6-ql+or?

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95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged708tvc9ox fx4)f ;jcpbljx ,f k 9hsn: through a 50 $k\Omega$ resistor. How long does it take for the capacitor to reach 90% of full charge?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged to s 8)b afzbloq4)ft9iu p vt;)212 V and then discharged through a $4.0 \times 10^{6} \; \Omega$ resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-MW resistor is connected in series with a 0.50-mF cap7ug:u4x z w teh3fz uqs11c0o6n5y/wfacitor. The capacitor is initially uncharged. The RC 41wsc:57 qw fue uxh 1ztg3y/f60nzu ocombination is charged by a 9.0-V battery. What is the change in voltage between t = $RC$ and t = $3RC$?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-mF capacitor is xio7 s6,ofap9charged to 6.0-V. It is then connected in series with a 3,s6i ao xpfo79.0 $M\Omega$ resistor and connected to a 12-V battery. How long after being connected to the battery will the voltage across the capacitor be 9.0 V?

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99#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has an internal resist5q/1v 8ud:qz 2.xre ub 3ywmbrance of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a milliammeter capable of reading up to 4.00 mA?

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100#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has a jwn gci /r kwg/n1r+*(coil with a resistance of 24.0 $\Omega$. A current of 180 mA causes full-scale deflection. If the galvanometer is to be used to construct an ammeter that deflects full scale for
10.0 A, which resistor is required?

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101#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has an inter. oup yq4;7:kjiy+qu hnal resistance of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to 400 mV?

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102#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer with a coil resistance of 4s8b*h9u -mqoarto-u9:(yq e r0.0 $\Omega$ deflects full scale for a current of 2.0 mA. What series resistance should be used with this galvanometer in order to construct a voltmeter that deflects full scale for 50 V?

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