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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 3sg07fbpv- rmuto(a) between the terminals of a battery, when no current flows to u0p7motb(- sr fa)3gvan external circuit, is referred to as the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference b6i4pgq qm r 3op9qtx cww -w8byj9434qetween the terminals of a battery, when current flows to an external circuit,o-3qimqq 4r3p xp 6w wy4g84jctwbq 99 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 -t/rqo0:k xqjto 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 connq; vw+y6xbjk ;ected 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 o.61 (xejxp :czu l3qxin series to a battery. If the current of 12 A flows from the battery, how much current flows txcoxj p.u 3(e:1qz x6lhrough 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 in7f)4 :n ucvodg series to a 12-V battery. What is the voltage acr4u:7ong c fv)doss 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 aresokx-ov nt 2u3l+kx lr -- o::(w5rlte added in series to a constant voltage source, the power suptx o+nls-oko3(: 5lx2kvlur: r- etw-plied 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 connec5le1k7y*cyk rted 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 paralls h77amrzq x1l-i6li/el, 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 resisj 9c 5;n,+2xuivfkp fqtors are connected in parallel to a 12-V battery. What is the 25f ufc;k+njxq i,9 pvvoltage 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 c9k icb fjriy ul-mc.q)v:q, 2:onnected in parallel to a battery. If the current of 12 A flows from the battery, ho,ly-mq )kf. r92vquiij:cb:c w 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 Christmas tree lights are conne),.5t enj5bd5(uv rzoie gzx(cted in parallel. What happens if one lamp burns out? jn(b5(ztgz),rdi.5o5xee u v (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 a* kg,oo y2rbt.p7.xm 78mthz added in parallel to a constant voltage source, the power supplied by the source ygt..ob mpo k*,zh7mx8t72 ar

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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 maximum5f0gwr-p np t+ 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 maximum pow0gpn5p+ frt- wer 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 junctioyoxi 9(;dy j(fn 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 loopbn , *9gp atb6su8qli3 rule.
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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's loop rule is an examw6w.dhr7z )5s y eba7g)ntgp,ple 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 emjbxjomll2 nli+pw5vh7z36 , 5v(3 esxample 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 equationshd jgpec hc8*;u 0q53x 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 batteevy 0ia2(h(puqhhv:54a :xv rse*bj9 ries together in series ("+" to "-" to "+" to "-"), and plaiev usr ej(a0v*ha9:h2q5 px h b(vy4:ce 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 ("+" t kvvd7+kcq0d* o "-" to "-" to7q dk*dv+ kc0v "+"), and place them in a circuit, the combination will provide

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together/lkb8sr)pf: 5d1t y vv in parallel, and place them in a circuitp5v r1:v8 )ksbd fty/l, 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 connected i ;jiog*h 5iop*n 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 c;v e8r. z/em1xvlzwn. onnected in series, the equivalent capacitance of the combiv8rez/m lzn.w1xv.; enation 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 to a battery. If a toq7gmy t mz09i7-c g;dwzyq/z: tal charge of Q flows from the battery, ho dgq :zc7wz0;gzi7y 9/-qtymmw 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 capaci wh;1rnlh:zhu( ;2aum tors 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 capab8ufc bn3g(z t774 vmb+ i5luvcitors are connected in parallel, the equivalent capacitance of the combination increases.( unvt7c5b u 7m 38vbigflzb4+

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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.giv,(om fr( 3yq6e dc: If a total charge of Q flows from the battery, how much charge does each capacitoriqvcd6:,e g3fy o(m(r 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 /+fs 1ocioct (lnuj8m2 zl-( cquantity RC?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of consv d ng3ysqq.+q0a09rltand3l0sgaq 9 q nr.v+yq0t terminal voltage. 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 seaj dj;nbpa yp)-fp r6.u70i*:x 1zzb zries to an ideal battery of constant terminal voltagfz- ; b*j. jn ):p1xdaa7pyzru0z6bipe. At the moment contact is made with the battery, the voltage across the resistor is

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connecten x41g x:t2vkqd in series to an ideal battery of constant terminal voltage. Whenknx:v2 xtg4 q1 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 sho)f7uz7cion 1gl7j(3 nj70h gaf4o utwuld

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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 ) hdfcm++g,iy9xvs : kaddition 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:zy 6z1layo(uv7lbr33 b0 ocu by properly placing an ammeter in a circuit consisting of one resistor and one battery. As a oavu16bz0bl:7ucz (yryol33 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 ammq)x nngu1ca.h 4s; 7ofeter'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 voltmu qh).q1+m kbceter 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 series resistr,zz(2eqw -kv;x4 z whance

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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. What hf(r(e pplf 0ikbp377i appens to the total current flowingppp0 ik(f 3fl bir77(e 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 voltmeter is , t5vaa o+--ebdfxfecg66bwl - +ue, gplaced in parallel across both the resistor and the ammeter. This network is then placed across a battery. If one computes the value of the resistu+eco+t afeb,fewal- --g ,xbd 6v5g6 ance 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 a yqxc 0 er9),x)z/wabwn ammeter, and a voltmeter is placed in parallel across the resistor only. T,)ca bxre/yw)x9 qw z0his 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 4wbu3l6 b;4o q)1r 3vggjf6hvz.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, and w/ g (j3pw8 rjiqi:. liig/(kx6.0 $\Omega$ 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, 1 *kb h3)fhqg6lxdq5+y 2, and 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 comb +p* e6aovb3.3 vvjj4 9w,xkmcfug.uqination 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 jkp /m1bmkmv jyuu 0t:h)6:wfec,v) 73.0 $\Omega$ 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 ofp /7uleekq e ;nu2w,(a 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 para5m(frbc4 toulj6 xf 0(llel 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 of a 4. h)rash:qf 49),n4vlpa m/t*jqov l4g0 $\Omega$, 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 ait5 8;o3cq f;qqz2 zcx 120-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 c2qtqz5co;3 ;8xqizf 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 numbera*zx m1 ds.;gh of 100-W light bulbs you can connect in parallel in a 120-V circuit without tripping a 20-A circuiazs;d 1gxm* h.t 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 dfbk1a4pt 0:b jx-n ;mqdy.a- $\Omega$ 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 aqh:t(kjlc ,y7dpcw2*n j0p r( nd 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.-4r sn5wosxoegpst8y5* )lrw8 i:jb 30, 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 ;kyk47g q .cbp9.0 $\Omega$ 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 v -r3yplx/r1dmb x4v3vy75 vj $\Omega$ 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 e*d*/7etmq1zi e 8ttp.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 thez lh.:u jgf+w 5g/by9e 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 throu* ;iky w3q:okogh $R_2$, 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 ofauzbz*ouz+qf c9*1p 9 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 3e)hag0tax eh gv m, c2;5:iidcurrent 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;3cdz+v e b/bm*s idhzd90*c k the 3 $\Omega$ resistor.


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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determx,z1bxz e1ad,;9yrzmv/s: kr ine 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 in Fig. p/xdd-apj:9 kv2;xo v19-5?


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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 +fp cl.b imxhx(-: sl9o26dyipoint 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. 19-d8k6k+i 27tcjl;ra v y5?


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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 batxrx(i 9 g1 1ghr5m2knltery in Fig. 19-5?


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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential drop from point A to poihigkdk rqh5hk*o95y4 9d2w by l57wp.nt 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 idmhp:: *j 7zpxl8e+b 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 in the ggub3ym- 2/r c8 $\Omega$ 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 qo y;bns-c- mly 0r4r)$\Omega$ 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 1hrixl 8g8 u33b i8c/gxzei d5-2 $\Omega$ 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 dif*07gs5i lho2nb k: 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 ino3 ,bawz/krs0 the solid wire connecting the upper left and lower left corne0r bws3z/ok a,rs?

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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 equi:t*gma. 8k )y7ceniwhvalent capacitance of this combinatcnygkaemhw8. 7 i)t* :ion 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 aretc17 soaj7jq: connected in series across a 12.0-V battery. How much charge is oj:1j s 77qtacstored 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 mFv pf8m ,m7wu/x capacitors are connected in series across a 12.0-V battery. What is the potential difference across the 10.0-mFfvm, u/mw78xp capacitor?

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacitor are connected in series acro j*l tdwp:ewd7o 28pzgb27 h6rss a 3.0-V battery. What is the voltage across the 1.0-e d2w:lg*pbj 268p 7rd 7howztmF 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 serw/ws w mw:,zb2ies across a 3.0-V battery. Wha/w m2s,:bzwww t 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 capacitors are connected in parallel a*wiua i*9:k21zp xjgr/ :rvercross a 24-V battery. How muci ev/w1x:rugk2a* zj *irrp:9h 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 ar pdi6yq+p2c0+,ymb k;zxu1mo mw9u laew5 -g2e connected in parallel, and this pair is then connected in series with a 30-mF capacitor. What is the equidmxkuqmi-gp lwe zbmcu52a1y+ y,p2 w 06;9+ovalent 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 rr*lwqowp/ g5pk w8)6 connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is*rl)rpk ww8o 6pg5q w/ 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 mF9ccwnplg /) jy(7uavy;4l)ex 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-n(w4 yl7j );cyg/xpal9ceu)vmF 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 com ;xt,8u tvd-glp *f2ndbination is then connected in series with a 128-f2lxtuptg*;,v d d n.0-V battery and 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 5omrvkep9-md w 4by+-ev:-p 0 p0 $k\Omega$ 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 i qb2c x:q; hsm d0w8vsg2vm/j/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 with a 0.50-mF capacitor. oq7.e /(l1uyi f fl-xw The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. iw .1xfo qu/(lleyf7- 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 co:a:mkuw ei5hnf a; 2/ 15lohsqnnected in series with a 3.0 1/f:le5oua:w2 a5mh ;isnh kq$M\Omega$ 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 o() c1;u y jx-yhl a0dsi (l2:y,acgaujf 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 re1odt)ivq/d 1ssistance 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 resistxkc)f :i-x2 wykke-*uo 4zs-43yd4s0 hb xbraance 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 omh jf2qfy2lfon/.v) t-dw0;rnl+d x3f 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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