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习题练习：Physics Unit19: DC Circuits
本习题练习试卷来源于无忧得胜-网上国际课程 (https://5edu.win)， 为试卷打印版，您也可以在网站平台(https://5edu.win/)直接 访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。 访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 77，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://5edu.win/test77.html  教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。
 作者: admin  发布日期: 2022-08-17 15:49    总分: 102分  得分: _____________

答题人: 游客未登录  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 terminals of3kkbft.6ylyst zl5i+i,.a qxb(n8 c5 a battery, when no current flows to an external circuit, is referrz8txbqs6yb3tnk. fliak5(yl. 5 +ci ,ed 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 t)ula vfru q 2sb.k/97ferminals of a battery, when current flows to an extuvkul9)afq27b/ r.sfernal circuit, is referred 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 res; .z.ykg 5 1ox1(guws uvglpe;istors are connected in series 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 connected0yga cqn9zx-u-d 0d,w 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 connectgs; dpx e1f7zc+tg;fnt +b67 ged in series to a battery. If the current of 12 A flows from the battery, ho6c;7;zf +ggg+ts t7n x bed1fpw 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 resistors are connected ifuk q5 q5k(0dwy * lt9ex/bwq9n series to a 12-V battery. What is the voltage across any one w ku/b9t0 5f *5 9y(qxdeklqwqof the resistors?

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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 i7. yhs68ji)yhkn, 6 f1oblsuvoltage source, the power supplied by the sours,lyf6ii8 sj6 .y kh1 oh7u)bnce

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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 res,sn :2;t +ncf8vzjn nwistors are connected in parallel 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 parallel, we can be ag 045 h,b4lalyjf6b) e exp;ucertain 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 connected in parallel to a 12-V battery. Wha ;h9k (1r ( icxutv2hik+vvh:lnlr9s w:x 0mx/t is t t(nkc; x9khlxv/:h+ 9srw(m hivl i: vrx21u0he voltage of any 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 connectegq :mwuyepr , : y64tqikjv4 4+9evh9fd in parallel to a battery. If the curren9,4 m:tqueq+kyjh4 we 9:yriv64vfpgt of 12 A flows from the battery, how 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 Chb9, b -h 3rugel(/xz(uwssk 2xristmas tree lights are connected in parallel. What happens if one lamp bu bz9gsh((b/uu3w e, xs-kx2lrrns out? (Assume negligible resistance in the wires 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 ::rf:ym:wo zhc j-+fnj-grcqdu* e8.added in parallel to a constant voltage source, the power suppli:w df.y8rqje o j n:ch:zu-r*+g-cmf :ed by 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 resistor+rsq ,5;le xils, each of resistance R. The maximum power each can dissipate is P. Two of the resis sle5q+l ,x;ritors are connected in series, and a third is connected in 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 junctionaq -3zkg9ir ilumnx;-c(5v+p 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 rulbz( 3xs0+b aose.
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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 example o fug t6 :;*yylvt2yw-(vb(qpe f

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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 exampleqhsk/4 k;/smsd 6.h sz 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 equations here is valid for the circuib3)zqd(*d ytz t 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 identi*7i xv hk0n.*dtfi fz5cal storage batteries together in series ("+" to "-" to "+" to "-"), and place them in a circuit, the combination w05*7z *t infv xf.hidkill provide

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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 identical storagew s+cc23 *yhzwn b3ltj n2g1h0 batteries together in series ("+" to "-" to "-" to "+"), and place them in a circt jsgl 2ww+b3*ch03ycn12zh nuit, 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 storage batteries together in parallel, and pl2 9 b:si7 xb+g bhj*+u+xsgvq5: sdaxxace them ingab 7*: vguqx :ssx+i+j2hb x 5s+bdx9 a circuit, the combination will provide

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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 conu3 n, y:ql4,ktrs+j2dv xv cx,nected in series 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 capav ra2q12l j(tgcitors are connected in series, the equivalent capacitance of the combination increasear l1(2 vqgj2ts.

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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 to a bat;gp( w1g(aee 8 yb9ufxtery. If a total charge of Q flows from the battery, how much chargeua8gb; fx1g9e (py(we 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 battery6ro .;o b7dqe +lk5axs,

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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 connect2nmh:msp 43l 8 zzam-ntx;w6n ed in parallel, the equivalent capacitance of the combination increaz8-n4nx;3zm s mmh p 6:2wlatnses.

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are cone50z,, f vbmooh0fiu (nected in parallel to a battery. If a total charge of Q flows from the battery, how much char( mof,ube,v00ofzih5 ge does each capacitor carry?

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本习题练习题目来源于无忧得胜-网上国际课程 (https://5edu.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
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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 quantity RC*;j6)5y 3jyy mtpheq d?

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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 batt vi6(3uigtjw /ery of constant terminal voltage. Aw tig/i3 v6(jut 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 batt,09hvohv6p oz ery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the resistor io vzhv0,h po69s

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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 t j:ep (g n hpom:;;hpo3ic4m.wo an ideal battery of constant terminal voltage. When this system reaches its steady-state, the voh m:mpgc4i:h3 p (we ;oj;.pnoltage 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 yxhg;5 rwes;.qc 8yq-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 ammeter by the addition ol*qymip77- r kf 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 an ammeter in a cirjty/ /h8o9e)mvekq2r p1 blg 6cuit consisting of one resy8bok2/qpre j/g 69hltmv1e) istor and one battery. As a result,

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Decreasing the resistance of n2+/z:xlryx;y dowm qt 7i6e1an 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,qdwrq ;ybe0n6 hopc c5(m/;r 0 one normally would

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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 voltmeter's series resi4 mtakqb+;:p(m 2xqzvstance

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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 obt)ui *ljo8qyn:b/jbw9ained by placing a voltmeter across a resistor. What happens to the total current flowing in the circuit as a result of this actionlbjwo 9iyn8: b)q*/ju?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor d)0me4ngrvi8x j o 83czxz7.uis wired in series with an ammeter, and a voltmeter is placed in parallel across both the resistor and the ammeter. This nerj 8dn 4zx8z.mvixeoc70g)3u twork is then placed 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 seriq54u :.odonqsogwj hy3 .(;u les with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then conn; jo. soh:3gwqoldyn.uq( 4u5ected to 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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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, and 4.0 fsm-q6)lgg *u $\Omega$ 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, 12, /m)/l; rzkrseb.ngl v mm 8z9)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, and 6.i6+6sv x t7m8fyi,0gtq5q hb f0 $\Omega$ 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 ogeka5y3;j absc4 6c(k;4sc sinto a series combination of a 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 a 7k6r7 qn3xlxzqaw (*k3atr5r z*i3uu3.0 $\Omega$ 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 inbg;8x w1 j up5/ka 2u;tuvan.4f,kddh mnn+5mto 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 parallel combinatiodk/2.9h8 g kp6r4uvvub)yqoan 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 combm -x*ve)n l7s rv(kjm3ination 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 120vg vi wo5c.c6:tr 7hsmx :e6x7-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current would the v6iv:7h.oregm5w 7s6 cx :txcy 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 conv3hen1dr 6mp vlw;1 a(nect in parallel in a 120-V circuit without tripping a (3da;v11nwh vmep r6l 20-A circuit breaker?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A combination of 2.0: e6dm3tr*s0 huaw y- y 3mfwmb8colog-)k./l $\Omega$ 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 g20kwk9kd+ zd dy:t2:ssa)c yand 30 $\Omega$ 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, 6.0,1..o :j p/mvb xcyfe,g 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 and0 vsse3tzy - r:c8k(hv 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 9.m aldpi bh,7jt*qz17fm hs370hug/ /a0 $\Omega$ 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 tl; i6rsp hign,*a7 whi32:ku9.0 $\Omega$ 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 vjrithc( kve e8h1 hcnn a98:rcv/ +6ig,f d56of the circuit 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 through 67edq j(jb d xe2* 2p*reaw/ch$R_2$, 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 resist ;pht vqin5ho)ynf0t 5,7+fqeance of the circuit in 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. 19-4, determine the cur,f1j7-.p a z(glxyjuxrent 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, determine the current ip(0,d+ vmcp,wb9frr66zse fe n 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. sk)ep:v( k.bzrje7 -o19-4, determine the current in the 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 pkn+6lv, 7r qchoint 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.eirtr;* j.vg- 19-5?


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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 point D relative to point C in Fig. 19-bgtq-zni 2da( qu mvy9,-tj-85?


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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 battery inn-eib2l wq)x nnx9r4 7 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 poinh-g-:(..) fxnck,zbjguvak k t 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 thu wqid-tkxsn qxo. ,,e +x(66pe 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 inz14jaoz f * jv:b8y*gei j:uovquum(+(7za q/ the 8 $\Omega$ 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 4vgll2bq8vzv,k4. nc9 r -+z tw $\Omega$ 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 the 1rt ) qbxy p7dqi00ct3(hu.m8xz8xe;o2 $\Omega$ 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 in the 1n.k vhe,/wtk38 $\Omega$ 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 conny sy+hkj8e4w o/rl4 alexh+ :1ecting the upper left and lower left cojk +we4ys4xahrh+ly1 e/:8olrners?

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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 series. The equivalent capaciouqhxor8 (qaw.+ -;vitance of this combination isiq.- uo8 w (ovax;hrq+

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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 capacitm o 9 ,mkhrus(4)8dmn b.vmlqi5y;cfd7-mje;ors are connected in series across a 12.0-V battery. How much charge is stor hvj;7yrdsinm9bu)f.mkdo e m 8lq(54mc-;,m ed in the 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 capacitors are connected in s pev-cq)x540b:cle )qveth+q4xj+mjeries across a 12.0-V battery. What is the potential d )qxx pvbm:+cqe45j j4)-l+ e h0ecvtqifference across the 10.0-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 ckvbr+d+ 1e xp)peg)zc /u)-ezkl+ iv 4apacitor are connected in series across a 3.0-V battery. What is thpecvu) g l + e)bipe-rkdx41zk)vz+/+e voltage across the 1.0-mF capacitor?

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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 capacjwl9 8)wm.c*zdmvi4u/vz c+ pkkpl: ( itor are connected in series across a 3.0-V battery. What is the voltage across the 2.0- mkj4)9m *pplui(:zv +c.8 wlwkzvdc/mF capacitor?

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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 3.0 mF capacitors are connected in parawv e a1n5qa11cr3wa 0allel across a 24-V battery. How much energy is stored in15carvaa w30qa1we 1n this combination when the 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 arey2c)rgu,cg m-l3vk3g connected in parallel, and this pair is then connected in series with a 30-mF capacitov3gc )y2cugml,r-g3 kr. 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.l3,am fxw: d4n hezp3o9e4yjie2k+)v The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent ckz42 ix+4 h op3a l) w9,dmjyveef3en:apacitance?

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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connected ip/ vd(r1e a/xbn parallel. The combination is thxp(/bea1v rd /en connected in series 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 parall nhz9 sg p4z(j x73 eo/uv8h;p.c(mgerel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage acrov7x h3 ;jz4n.grp((z9ou hec 8es/mpgss the 6.00-mF capacitor?

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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 charged 6hu5wwl8g sr-+gpvj7 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 i9i l9 yxdcr nv2 iwl:j4t7+ex,s charged to 12 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 w2/2nufnv kpj +ith a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0uk /2f+pv2 jnn-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 charged to 6.0-V. It is then+0e cmevah 2 ah*2r :rm1 szw5l;w0caot+ ,hfj connected in series with a 3.0 t + *h5hc :arr+slwczm2foe;a 01 h2mew0va,j$M\Omega$ 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 resistance of 1wwy kpl n,:c:s p vi;mikn36-+00 $\Omega$ 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 coil with a resistance of 2zt,v849e kt jgc(-bc/p0iak/ h;vv ox4.0 $\Omega$. 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 internal resistance ofh3o0rvk*hl* jnu2xm5 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 resistanceef pvt9q-44o1lf6c o n of 40.0 $\Omega$ 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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