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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 curre4w +et avi6g2v ,upeoq fgk2+:nt flows to an external circuit, is referred tuwt,ipaeef6:vk2g 2q+4+ vg o o 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 g4q7/-oi4qvdd a6se rq a 2;xwthe terminals of a battery, when current flows to an external circuit, is referred 72a ra;q dd46qxwq/4vs o-gieto 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 con7s w35y.vekczhb h 7o4x;*jub nected 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 cm,qdn pr a5*;ponnected 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 connectedzk l:jw,7n. zte9v ku9 in series to a battery. If the current of 12 A flows from the battery, how much current flows through :n9zt.e,7j uw 9lzkvkany 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 amrupnm0al8 , 6h/qb: 5w;pxpos;w kb( 12-V battery. What is the voltage acrb0;5p6nmq:a up,pw 8ohl(/km bxsw; ross 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 series to a con5b3dwb0dvd :gsdzk u9 /s(n9astant voltage source, the power supplied :d9a 9/ d(vwkbzn0du5dss3b gby 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 connecti* pk/y(iof4 k / k-e46le m7k,jvurrved 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 parallmhx:cm 58xwc80 teo*r:o w/sbe2kpv: 9hibu7el, 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 jac(w wa7.m1cted in parallel to a 12-V battery. What is the voltagej1 7aaw cmw.c( 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 connected in parallel to a battery. If th e dihdq1f3*6le current of 12 A flows from the battery, how much current fdh6 eqf3l1d*ilows 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 Christmas tree lights are connected in parallel7 q-jk qm52ywv8q .lj+fh4wqf6d v2p e. What happens if one lamp burns out? 5f mq .qpe87k j hwvldwyvq -4qjf2+62(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 paral2lu n1ck63sgmc)pw 5 e4ph, p9ffob-alel to a constant voltage source, the power supplied bpu kpg2s3 nab6hfc1) lc9wpm4 fe-o5, y 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 identic 41u wfj3td,psh. tt9bal resistors, 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 in parallel with these two. What is the , wbp ufht.t31tds 9j4maximum 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 junction ruleow2fy8;ob9i: 31gb b e4roaxx .
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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 rumd 5)wkh 6.cwba 06mmqle.
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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 b)mhu8l j6 b,vis an 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 is an exampnnpquv7 p3v ((le 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 fo-yzrdz-n1 i u)r 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 ("+" to "-"l 3eboj(*b2qva1tf/m5m3r i j to "+" to "-"), and place trfmiq52vljjo/*( ebm a 3t3 1bhem 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 0 cz+;fwzg wen/.7 grvseries ("+" to "-" to "-" to "+"), and place themr wzn0+vg ; c7egz/fw. 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 storage batteries together in 6rra+r4+)nbf v czof. parallel, and place them in a circuit, the combination willvf c+6on+rrzarf )4. b 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 cap p. x +v lphfzbwj-k)+.80dakgacitors are 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 conneodb -kch1-kw 0dp3cms9 ::et34wvbdzcted in series, the equivalent capacitance of the com:dp h3ov3zb-b:tccwd 90-w mks4e1d kbination 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 toaea8bnfo;n0 +w3ywf e(3 vp/h a battery. If a total charge of Q flows from the battery, how muph3wwfa/+ov8 ;0e e3 ynbnfa (ch 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 capacito f+d nog2.hz8ilij5fy7jv t+( rs are connected 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 equivalent capacgc;gtx lbo12k.: xi ;vitance 2:1k.oxl b; ;cgtivgxof the combination 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. If a total :7g)swaz,cs u+kjd,uh +yhl: charge of Q flows from the battery, how much charge dw,h cyj7sk)+u :ugh ,zl dsa+:oes 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 quantity RCqa/ xwnsqy:6t+ s; e,xayef-gkr0 *o* ?

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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 connpe cn4s2 4uphaz524loected in series to an ideal battery of constant terminal voltag2s ea2pplzu4445 cnohe. 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 st(e,jw/acx.f eries to an ideal battery of constant terminal voltage. At the moment cctxe,a. / fj(wontact 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 of consf7dk,/ yg7ke db90- k ag(uckym6 wmu,tant terminal voltage. uc m6k a90bk7m,gdd 7y,y /e kkug(wf- 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 shouli jb/-r.qj 8pjl(t yy*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 conb a(f;j+t9xxuf2s :gb verted 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 properly placing a 6lk8oqfs w6e;l8rqj,j g,i s7n ammeter in a circuit consisting of one resisto8,;sqf6 q6k87r lwgl joije,sr 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 an a-rxd2f vq;a1 3 vs7gxemmeter'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 normallrjun no7m+auei *8/py :wb +;.n c)fpfy 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 volt0(m,p +5t7e/ kj h4fw v lftiniz+to+smeter'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 obtained by placing a voltmeter across a resistor. Whatgd fh3/et7lxf p- -id39 v,qyh z(mhe/ happens to the idle7 eq-h,f-ymzgh93f/dt 3(hv/ pxtotal 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 vgxup uz76zc+vbz;pb:l* /tu7 oltmeter is 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 resistbgp77z6bx:uu lt+z*ucp/ z; vance 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 series with an ammeter, anij34+rq ;yxn,c0lehjd a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If oqh 0 +jey3r,ncli jx4;ne 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, +scf7uf(z+vsvb to q0bumub+gm /u l 4*q45h*5.0, 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, 12, a.lzo7 i fgqh40nd 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 6.0 u 8uw olu.c7kj.b9 /lk$\Omega$ 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 com)arwve;yi ,,cbination 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 seriesi9 pluw4dbx j23zb+ 6cz0-vie 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 4.0 irqir7 t-y*gt kov s7zk; .,;w$\Omega$, 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 intofv jk(y 13wbn) a parallel 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 combination o //+idl. 32youm orhncf 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 connecso9son *9fhr 0p9z,c dted to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W micro* szocfds,p9h9r 9 no0wave. 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 wd7e,r+ i+23eo; g6sdzk raogyou can connect in parallel in a 120-V 6dr,g7ao zreg2wso i3+ ;ke+d circuit without tripping a 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 g-g .hw9m iz:i,yxfd: $\Omega$ 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 3 eeb57j (fc/ji) kz/sl0 $\Omega$ 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, and 10.0s )0gvku9mehz ,6r 3bi $\Omega$ 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 uto* ovl3/sq v8kevl 7-a7lk-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 andge.1-tvh mhi qo bu5:4 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 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 9.j +wg.:2lg pwrrg9c g(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-fovzk -+ nz7)w2?


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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 througzrga o7)d)a +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 resistahfg;off vz:xb,(g6/n u )fx(ence 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 F8ohy-+shdso zam7//d b9pl8l ig. 19-4, 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, determine qen,*7dxcs pb i)*2mg./yg3 fvs jbu rs+)h; bthe 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 Fu/w0+ :vjau ssig. 19-4, 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 inq7c6 wp-cuxi7l0c fl * 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 poihe h0f 29r9qwhnt 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 iwlpnio1m:o3u ;3w , lqn 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 frrx.*8yi3xbsyn 3qn5;wq p, ctt89 b5hngj9wb om the 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 drop frogm/6xpzd bgd f78k,2 hm 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 currentms8e l mug70e o0g17bw 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 curren q,zp mf 00/kms)mjtk:t in 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 thb(3: fh5c a n6zht*gale 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 theozhv:*b3n r: i.(wqo d 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 s; u+ zux50ao.ri1molx ) t(xz rx,z46tlz2ucthe 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 d2ly2 8dx3n5z ;ilsnithe upper left and lower left cornel5;2283xz si l nddinyrs?

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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 uns +qh32n7y 9ov kbk q3la+dnvgo,61 are connected in series. The equivalent capacitance of this combinv +7+6gkl,q n nvsu3dknhyq2a13oo 9b ation 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, anhcj,tu 4 t 8j,isg )w5kzwy+6ld 50.0 mF capacitors are connected in series across a 12.0-V battez4i8h ,tl+ j5,gs)uykjw wt6c ry. How much charge is stored 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 capacitors4bwumt+:zpd 6k2mc v+x70 ,6 meocftx are connected in series across a 12.0-V battery. What is the potential differen,4m0m +owubec 2 xvkd6cft7tz+mx:6pce 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 conn s+pmvc0e9*gh ected in series across a 3.0-V battery. What is the scv*+ephm0 9gvoltage 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 capacitor are connected in series ly(ohcf w7cu,rjg p 7nzm/, +.across a 3.0-V battery. Whatnmwcl7 ,/ pfj chygo7u+z. ,(r is the 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 mF capacitf)6npf6 dgvm,y bq 6+i3hyn-kors are connected in parallel across a 24-V battery. H63kq+ -bh6v)iy, mpf fgnnyd 6ow 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 20tfc xz0rlhm;u 6m12 s., xn4c:la/dsl mF are connected in parallel, and this pair is then connected in series with a 30-mF capacitor0sm2mcll :t.cz, 1nlx u/a64;rsf d xh. 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 mFov i (6 pw8,ov4pl;fod and 8.00 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 equivalent caoilfppv;do 6ow(,8v 4pacitance?

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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 axj)arle od5l;z4d xq2*p pmh.7q ** oand 8.00 mF are connected in parallel. The combination is then connected in s)mo4palq.r*dql* x;p2 5x h ade7*ozjeries 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 combi:aqgx/5cr +av0yk 0ocnation is then connected in series with a 12.0-V battery and a 14.0-mF /q5x+:c ag0c aorv0ky 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 throughxd8 kmajy3 ll;g :wxk0n(2sr9 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 V and the;u56vj+t1xa innwe 5 mn 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. qrr cl-s;/s9z ua/1gt50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the grlrcs/ 1za /st;9-uqchange 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 connected in series with+fwx/q-f w.dv a 3w-xw+ vfqd/f. .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 ale8kl v8xd (n8 6)-ffsvp 9avun internal 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 resistance of 24.0 dmapt.:mx o+kxl/p (p*pmy 4* $\Omega$. 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 resistancex ug f t-1px7(xn9utmybh:2w 6 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 oekwrk u3;* 1* pszrst9f 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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