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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 of a ba-62hjdyy cz)/dl.4fq3ji ne s/1-me)wva s b uttery, when no current flows to an external circuit, is referred to as t uw.1l 6jbd4 nhq--e fs)mya //cevj )iysz3d2he

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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 th*nw.(n m5y eqre terminals of a battery, when current flows to an exter wn.em( ryn*q5nal 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 resistors are connected in series vn6.ih1eo8 rgto 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 connected in ser24o mdni odg.:fd jg,)ies,

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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 to a yc tv54u.wut5battery. If the current oty4 u t55vwuc.f 12 A flows 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 resistors a v)1lnmb- t2mrre connected in series to a 12-V battery. What is the voltage acrosst vnm -ml)21br any one of 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 s bs )3vud+m987 oflqgzhk:g .yeries to a constant voltage source, the power sup+ .ydgv3 9 )lz kugqobsh8:m7fplied by 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 conn3jkd9 l-/4ik 86r gai9dr lptkected 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, crsfp,pe (i*fg 39-cnwe 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 connected in parallel to a 12-V batte)yz.z)tshhskbf+:35 ogg(uf ry. What is the voltage of any on.u g:hf3o()h k zstyb5)gsz f+e 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 resistors2 ;xfnru,yd4n are connected in parallel to a battery. If the current of 12 A flows from the battery, how much current flows through axy nn4urdf 2,;ny 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 Christmas tree liy lr9kzx2 m6g9ghts are connected in parallel. What hap6k9 92x rzlygmpens if one lamp burns 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 added in parallel to a const2uhnf.cj 5k,t;qg 6:f ded /z9ax;aocant voltage source, the power std .z5ka co /fn:e,6j2qcahxgfd ;u;9upplied 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 power ea-s-5cgdx.cuy 9 fkz+x z/a0wj ch can dissipate is P. Two of the resistors are connz ad+cj-gysz/ kxwcu f-50x9.ected 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 juncti(/c+s )us kl 5xr1wdqd +rj(qjon 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 rule.ts3 y -s( ju0ox)d8 (d; ut(oifnu:vnq
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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 ex1k5 -xbufyav, ;r1th* afbq a3ample 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 3g qt0)fwz70f1jb uw(dvy *+tlbjz e3rule 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 equations herxm.i57db :il vz2cq*pe 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 together in series (jf;/gd 2ar lh5rc1/aa"+" to "-" to "+" to "-"), arda rag1jfla ch 25/;/nd place them in a circuit, the combination will 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 storage batteries together in series ("+"zp2- -s4 j +3kkeujepaaoy38c to "-" to "-" to "+"), and place them in akj ujeo3 4y -s2peaa pz3+c8k- 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 st (+0vm5 fjirrmorage batteries together in parallel, and place them in a circuit, the combination will providev fr(5r0jmi m+

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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 series to a battery,z4ln ldmx9 xh-g2b9 (6 2.xtowq*flcu

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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 capa.1a/+ gqs3sby *cjrim citors are connected in series, the equivalent capacitance of +3ri*gqms. csjay1 b /the 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 st g/ 6wlnxg2 +:shw j0npmg2p7 zpz-x,eries to a battery. If a total charge of Q flo w: mx x2n2n 6-+g0lzs7tghpgpzw,/ pjws from the battery, how much 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 c,: )(lqq l2i mdcyjltieyq d- aq4a:;*onnected in parallel to a battery,

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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 eq/-erh0 v)d-dva 7b2gxbeez h 5uivalent capacitance of the combination increaxh z0-r52bedd)7 hvebe-v g /ases.

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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 bat/ufl**+w *u hwl dxc1ftery. If a total charge of Q flows from the battery, how much charge does lu u*+c1/xdf**hfl wweach 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 qu2btdu9c3-ul j antity 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 ideauy1gga9j,rf s r0-sz2l battery of constant terminal voltage. At the momeag9sf 0u-s21rj gzyr,nt 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 connect h,kxmky5)i q kj v(*.c -nv:rn8m+onjed in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the resistor icink,ny:v.j8m+o5) q -nkk( *h vjrmxs

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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 of ,f(x:scohm,tdmk 5,c constant terminal voltage. When this system reaches its steady-state, the voltage across the res(o5 ,c tsmd,:kfhx,c mistor 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 shouldl j t t/gplm7m)d)co.ud*r f/(

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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 convert j*+(dyn5 snpt3tfx /aed to 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 properjhcjyoqfw4 3jz7 s603 ly placing an ammeter in a circuit consisting of one resistor an7qsjc fwj3 0 o64hj3zyd 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 resistanc j1.: 7jsk lc+b,u)9ahtj hwnze 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 ac:)nh2;pn(py , 0vy+-cifokw avz be ; 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 series resistanc0yy7j z2a kvh 6m4t 3v5yotv:qe

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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 pz,f m)+- qkmq:;gqu nklacing a voltmeter across a resistor. What happens to the total current flowing in the circuit as a result of n - ;kuqzgfmq):q+,kmthis 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 voltmeter qw 5uh)1:g+m*krrb qvdk;q + cy9hz /gis placed in parallel across both the resistor and the ammeter. This network is then placed across a battery. If one computes the value of the resistance by d qb /zr+u) *1 kdvg;w:crh+y mhqq9k5gividing 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 series with an ammeter, and a voltn4:i (6d.ew,nevuqu ow, g.yemeter is placed in parallel across the resistor only. This network is then con(.ngdn46u, qiw e:wou,v . yeenected 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, 5f -w8 xhlk7)qd.0, 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, 1tjd fus,med8w4g c;w mi 49(f62, 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, hwp :,bri8ul+ eb/2f uand 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 alq6 0 6 nx1n mpg,0z5bvex;yglwo5zck+ tjp;1 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 ser/i zx1g7dti.ties combination of a 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 into a parallel combination of 4.05ffmq js1sm jy 5t+ w0mct94-h $\Omega$, 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 combination mv* (tpv ap:up 9l)e+mof 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 combination of a 4)2qdx -cu4qu piwinwt+ k. t tyx8s) n:+k7af;.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 j9qkev( g69 ltqb+p +pt+/ *opqv fho9a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. 6p+f 9 +phq9 l obev*t9qv(/okpq t+jg 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 nud/cfn gvcq -xve6;u ll*(:x4mmber of 100-W light bulbs you can connect in parallel in a 120-V circuit without tripping a 2x xn/v 6(-dl4cev*mufgq:c ;l0-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 n +ntfwd*8 nt-$\Omega$ 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 3bscb+2 *ikbhx pfjb 6c.;qj*)0 $\Omega$ 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;pv+ oihn.1ms, 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 and s- kk *oxs0r1t2 3n;dck 8obsq9.0 $\Omega$ 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 vep2g+nvmppw j-8yz68q b y h10i64fn $\Omega$ 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 a z3q*e fb03qo;c(q)o vooe)m n ,p3zcxnd 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 circuit in Fig. 19-d 8f7kva4l :skdb ehc xvs5+vdqj/ +/,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 t6 yvk2dhx6 mj n;l5zftuy l6ypk8()*$R_2$, 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 resistancmaq)w3jya3q0q n:2 q fiz i0r9e 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, deter(9b rkwsub4k ;mine 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 current in /0x8 z m6) mxjyv6fqn/k:w eidthe 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 curra. wr( cja0ijlf:x00sent 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 in Fig. 19-5 fssby+ hgo/,80f 9sj:/crqgp?


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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 pkd* w hygqc+v 0u+ksk. e02wj:oint 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 point D relative to point C in Fig. 199tg/3 gbwldj 5-5?


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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 tnakxb c9:8mj+ :vqj(she battery 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 dr xl((bao3siv jrv3c4 6op from point 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 to psle.7 j8s6x.ikk.in the 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 i ,ct*g1fctieeg(92qin 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 4 v3;toup kt5fv 1n-y5i$\Omega$ 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 t*8y uzll 4m.y -pb0relhe 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 t6yr /l8j1w cu+ps(f oohe 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 sol6q rxcl*d/-ixfi*1 a rid wire connecting the upper left and lower left cornlcx*/a d*xr6 ifr-1qiers?

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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 capacitanra t0co7ey h-3d53 9t0)smyviesr9opce of thiyt sr od5)-chmpvy3309o 9ts0ree7ais 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 are con r /esbrbj)w(8nected in series across a 12.0-V battery. How much charge is stored in the 5.00-m/br(wreb s8 )jF 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 mjna0; zn- d9vyrnn)u-n-g2 n pF capacitors are connected in series across a 12.0-V battery. What is the potential difference prd0j-- 92v-zynnan) ; n nnugacross 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 capay3v6k3 uas:;b nb eds;citor are connected in series across a 3.0-V battery. What is the voltage across the 1.0-mF cab;uyn3 s vks:d3ab;e6 pacitor?

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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 acrohti; dct) v(, peip:.zss a 3.0-V battery. What is tt:c.ii ;z(,p)ptdvh ehe voltage 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 mzczgs*;b z,0 kF capacitors are connected in parallel across a 24-V batzzk* ;zbs,c0 gtery. How much energy is stored in 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 are connected6pf0xy 0nhqca9d6h)v .nwz1u in parallel, and this pair is then connected in series withd1ac w hpn)h xfy69qz6u.n0v0 a 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 b a01hp4db7pa+d/tz tare connected in parallel. The combination is thenpb 1ttd /+h0 7adpb4za connected in series with a 12.0-V battery 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 6.0a 3n* ,wgf9pv; lkzwa:0 mF and 8.00 mF are connected in parallel. The combination is 9a;g w,z n*3lf pw:kvathen 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 connectedmkrayii 8qo 6*6 ,rk)k/dr,bw in parallel. The combination is then connected in series with a 12.0-V battery an 8wii rkrkay/d6rbq6)o,k* m,d a 14.0-mF capacitor. What is the voltage across 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 through a 5dc0emgr :8: 5tq ku0nxsoz99 x0 $k\Omega$ 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 ic.w( y i:uvtr1s 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 with a 0.50-mF capacitor. Tgy u5 1ru e7 3fqdwdsvi9f*x0(he capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the fsd(7* xfwq5uvg3d19rye ui 0 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 cha3n2vn(i b xz7wrged to 6.0-V. It is then connected in series with a 3.0z3w 2(xn7 invb $M\Omega$ 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 intern nlxswf)y pdoc08 sc1a;m2 /e6al 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 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 resis(brapbjabexd *vjh.b m / n4*1i, b+2btance 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 resistance of 106bo u.p(x4)wawv( p rg0 $\Omega$ 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 40.0kx0 jpa z15lx28 1sxta $\Omega$ 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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  • 姓名:游客(未登录)
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    总分:102分 及格:61.2分 时间:不限时
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