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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 terminals of a battery, when no anzk oycy462x u.r8y ,2qw*rk current flows to an eyukq8c6 wy x2*o,r 4 yan2z.rkxternal 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 t *9 dkoe*p n2hx2q-iyjhe terminals of a battery, when current flows to an external circuit, is referred oxp2- *ekn*9 2y qijhdto 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 resisto wa),e rn9dd/ zg63 hgfp7srf*rs 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 connect jj lhoz;z9 ecy+.+qn2ed 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 in series 3 usk0juhtv/ 9to a battery. If the current of 12 A flows from the battery, how much current flows through a3k90just u/hv ny 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 in series to a 12-V battery. Wha;;j1 4hz:2nyrktozlr4u x v -jt is the voltage across any one of th;zn2 jyr 4jok1;4t hlxu-rzv :e 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 voltage source, the pt4oqci29esz v zn:8 h8ower supplied b2hs: 4ociqnvz8z89 ety 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 paraw3s* y+)t h hqij,1winllel 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 con l, h;macgh,60a*weca 9 fvoy0nected in parallel, 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 connec xx;yuxi1a2ny guo ,8ji6t-2 bted in parallel to a 12-V battery. What is the voltage of any one of the resio ,n 1gjaxi ux2uy;tx -82ybi6stors?

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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 connected in paras e41*3pq8dav9o ymiowp .i,kllel to a battery. If the current of 12 A flows from the battery, how much current flows through any one of the reqio *ks w9m.od41p8 3vya,ipesistors?

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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 Christmas tree lights are connected in para o.e4l1/9 ssyyza8wqm llel. What happens if one lamp burns out? (Assume negligible resistance in the wires leading to t8wy mlsez.sa/y 4oq1 9he 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 parallel to a constant voltage source, isl/jvf*zx t82p ee4+ykj e90the power suppliedykvfjt08pz xes l/+e*ij42 e9 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 resistors, each of resistance R. The maximum powerhd 7gh 1 ss;0/ywcf2a6lmgq/jf.th (x each can dissipate is P. Two of the resistors are connected in series, and a third is connected in parallel with these two. What is the maximum power this network hq/; . ssdtjmw0y26a7lg g f1(hxfc/hcan 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 jun+gfcbm( rokdwgdv:ob(,yer 2)d91c ;ction 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 r f2p b;aj7bf4vle3 ( -o(wj)swarb;jdule.
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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 o.2jf* ubo6v nan example 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(ow hym 3hd/fw/eg8r* ews3s7 is an example 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 equatioi.a ;vq)er:.v dipr1yns 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 bazpzcjt u(8i)6wvh+8ntteries together in series ("+" to "-" to "+" to "-"), and place them in a circuit, the combination wzni)hw vzup j88(+ct6ill 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 identica ndy-phvj6(g.l storage batteries together in series ("+" to "-" to "-" to "+"), and place them in a cidvy6hn(.g -j prcuit, 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 place t3j;kksm ii.hun/ s0+/ ir:h te1b /orshem in a circuitjs:b/ kis/3uis+ne hhritm; ok 0.1/r, 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 s .qkcb-oqku)uq6+9 ibo(-i o connected 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 capacitors are connected in series, the equivalent capacitaq b sy-av52g00 r 9ia/ssxkdn)nce of the combi s0ys5s)02 aki9vxb-n/arq dgnation 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 arx(1swnsauo , ,s+eb f7;vzsx4 e connected in series to a battery. If a total charge of Q flows from the battery, how mu;,x7ozea x41s nb w+sus,s f(vch 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 batter7 lf1rhyt991pm+kesd d+gwjj 08+an ay,

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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 capaut9ib6.hf q0 8z;trrk*ax0v lcitors are connected in parallel, the equivalent capacitance of the combinak08.zt axr qt6u0i*vfb ;lr 9htion increases.

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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 connected in parallel to a battery. I9exz94;5htkm3rq8nqno tlp bnt 2t 4 6f a total charge of Q flows from the battery, how r5t4 t 8 x2ok9qtbz649emnthpn;lq3n much charge 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 qua12 sb)m5: - uz-z+6eygiuxyngtfk6mr ntity 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 battery4g 5sb(m 0rde8 oteay) of constant terminal voltage. At the mots 08gd4 b)5em(oyreament 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 i+eo8gi82ccli 1 riy:s saio;5n series to an ideal battery of constant terminal voltage. At the moment contact is made with the batte:1;coceiis8sai goy r8l+ i5 2ry, 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 capacitounsxc 9lo ;k hu60fex87mv9 n/r are connected in series to an ideal battery of constant terminal voltage. When this system reaches its steady-statlxmnn80e ;o7 6xv9ukuh/s9cfe, 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 shoulut/lr)b g*rq/ d

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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 t0g 3-jn v2bk/el6pewoo an ammeter 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 p18x xfzc w ozmuk/3:u0lacing an ammeter in a circuit consisting of one resistor and one battezk/c f8xxmuz 3u01wo :ry. 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 ggav. z1k0qdi+k a:+pan 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 voltphs :7*k7k,am jwl . u6t5zxixmeter from a galvanometer, 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 ser ct *c5rmk5,acies 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 obtained by placing a voltme 0odmhibm4 3kbbbpip(f +:wd5 (am.a0ter across a resistor. What happens to the total current flowing in the circuit as h.bpb0+ domi03 4:bm(ia abwpfkd5 m(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 serg: 4l anxms pep8)7nw;ies with an ammeter, and a voltmeter is placed in parallel across both the resistor and the ammeter. This network is tpa:xge n)4l8 psw;n7mhen 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 ser7erl8s2ljo 3n 4eac0zies with an ammeter, and a voltmeter is placed in parallel across the r 2njoel4as8ler3c07 zesistor 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 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.vluy8tdm .39- 5uemu n0 $\Omega$ 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,/ kvaub,8z l96p3mw ip 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, a( : p)k6d+izcnfbxm -mnd 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 secov 9z(oogmv(n ( :8k;ehk9s yries 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 3.0ill.6.rhix 8;5b lz/yrrd,b a $\Omega$ 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 into a parallel combi4a/;ed0ydc sqnation 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 c 1x sa,dm6ms2g:vxb/rlay,viv(/ cp8 ombination 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 flowsij,yb.* g2 uy: zwgbi/o9kmj31e bm.t into a parallel combination 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: 1200-W toastery pnd wi8g44*cd- jjhy2 p98p5wirl; u, 650-W coffee pot, an4ldrj judpn 8-g4*hi9p5 ycw2;8yiw pd 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 py;j: d-j:ev b.cy0bka 120-V circuit without tripping a 20-A circuit bre;p :eyd vjcbk-:bj.0yaker?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A combination of 2.0gava/m vvk1aj. j1 2/v $\Omega$ 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 xi8fb.l6 qj qw9**x gx30 $\Omega$ 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, an ,e82i/g kp io5v9 prk:xdza-cd 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 and 3-cg (q nioc0mfnj5r/ 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 9.0 a7uwx2 :cq0ut $\Omega$ 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 an p 0l6/cnx* rla0qqf1md 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 fakm (r:3:v8hwpggm9 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 througk. w2uro f*li.,s:ycvkui o0. h $R_2$, 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 in /e 7 tgax/hq4.thhcfws3+x.ql kg3 h.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,l5r6 j25ntcu gel6l)u 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, determine the cd(f o k s*tmi7lkh j8zbn0063burrent 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- ycq)j+boil ;mkii/.2 y+yf xj +ems64pz b;v*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 point C :g) jv/hvp2a win 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 pok5p, 4(obpjjn8vz0orint B relative to point C in Fig. 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 poi we1723qbym j( kg4c hgkhx2b6nt 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 battery in Fig.:-e.h dtjv t,r)-awm(4 n othc 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 bf,qn,:-jk 0vhgn:: yme0 c pkpoint A to point 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 7 rz) xyrd+6vrk- zb)lqv-ba;-$\Omega$ 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 wytmzb j59rp:.zu 1 g-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 curren ,0cykivs ;(rp+utb q,t in the 4 $\Omega$ 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 tp3tj *ak(w3 hrl y+5 w+s,-u;npgdg udhe 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 in (;48okhxo a: voc4sx gcvt1d 6the 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 connecting the upper left and lower left co f1m)oiz ukjw,s3+cpir86 u; d 6u18zu)3ip;m cs,fojrw+ki drners?

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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 ara veoa on2bpl41r/+*n e connected in series. The equivalent capacitance of thvoaone4n l1a/p + b2r*is combination 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 aren)-j2p *-bqh fvwc+ nq connected in series across a 12.0-V battery. How much charge is stored ic)vb+wjhnfpq *q2 n --n 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 zpa7f qaho -6e;n ;iyojogg;4uf/196n6 wxxxeries across a 12.0-V battery. What is the potential differenceixah4 qnxjaf nyxf/wog z -9; e66g6uo7;;1po 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 capacitor are connected (9a ws,n;noe1 )d nhmhin series across a 3.0-V battery. What is the voltage across thh1n ndsw, 9o)nm;a( ehe 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 capaciz2n2bo. va tasn;ixizst h/d ))1w- 8ftor are connected in series across a 3.0-V battery. What is the volx;2) hdat-8 s w.bo)iz1fit snvzn2 /atage across the 2.0-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 connectekjduv7z 8j9d 1d in parallel across a 24-V battery. How much energy is stored in this combination when the capacivd7ku1dzj 9j8 tors 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 are connected in parallel, and thaj (;z)9c)bsi alpj ab):h.oeis pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitance of this arra)ac j:sl p;b)hi9jz .(oa e)abngement?

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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 khvor;0almx51) -dof 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 1a5km-x)h0or ldvof ;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 6.00 mF and 8.00 mF/x kss +42 .c9gdjnrve are connected in parallel. The combination is then connected in series with a 12.0-V battery and e cssdnxrk./9gj+v24a 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 84 uj2;sncplx3.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage across then;x 243jclpus 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 thrt-:c 6r*yqz*o* j y*pgu-f8t zcm1lghough 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 12 Vdzj o8 w ys-bcbdh*e2,4tx*wm+e . 8yf*tsds7 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 capacitor. The capacitob(abb+*g)j n0 qroywb(rgd5. r is initially uncharged. The RC combination is charged by a 9.0-V daq gny)*.r jo(wbr(bgb0 5b+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-rembtk w+ 4a-sypm 1/2V. It is then connected in series with a 3.0 - /m apkrbys2wt+e4m1 $M\Omega$ 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 resistancecrh igaq5:1 o7nii7 -i+(di+j(tjev f 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 coil with a resistanc:p0 *k.n :gu* eeznlqie 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 internal resistancj -jfo-i7cyy(r+ll a+ e 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 ijy,u0the3d525uh lpzixul/ d4p44mrpq2o0 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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