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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 battery, when no current f iq ;/zg(lyur4lows to an exter;i uy(4rq lgz/nal 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 the terminals of gvmm52f9 r lb qp*6zj3a battery, when current flows to an 5bj*p2 vl9fmrg mq6z3external 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 a4ax4,cbwrsij3 v k4xpe745 wnu6b ,z 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 connected ik,)mt+ om 2bh2q o)nwon 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 cof34jdjzed2ux k *csnp;8 (-fcnnected in series to a battery. If the current of 12 A flows from the battery, how much current flows through any one odccsn3dfkufz;j8 pex4-j *( 2f 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 baec(zl.pv ,6 8 avsb , 2rgwr-gf6rq1hdttery. What is the voltage across any286rg 6v,s(br gw-plqr 1a,cfed zvh. 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 7mit vq+d ewdpy2-n*8 kkzi g)r.1f6w added in series to a constant voltage source, the power supp6dkg w7v1tdkw2- i zn.i8ey+pm)rq *flied 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 resis n9xlk :gj8cq+tors are connected in parallel to a battery,

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected in parallel, we can be certain thg/ /gz jgvo :u*0qq(koat

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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 parallelubcj)3 2f )mutx-6v tn to a 12-V battery. What is the voltagfcbxnj)2um t-t63u) ve 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 are5bn/tc77 y ;fw(r;bua: 7jb1ej;ez(ow kbkke connected in parallel to a battery. If the current of 1reek:( b;kwb u f7je1;t7bjzc;yk7aw (on/b 52 A flows from the battery, how much current flows through any one of the resistors?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lamps in a string of Christmas tree lights are connected in parallell ba gf9go0nu 1*ix5/e. What happens if one lamp burns out? (Assume negligib91 gi fal*xebng0ou5/le 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 ufj . *mc+51o(fh9u1kubk mhcconstant voltage source, the power supplied by the so h1f+f ccj1 muu(.uh9bkmk*5 ource

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identi* zj6 jpmpemzm,:y24ae 7cvg e3/sl) vcal 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 maximum powj*sl zv64ez y:v mcg m/3em7pa,p)j2eer 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 juhgyz 3it5sbavdwa:j7d92 nc bhk0) ,7nction 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 rulexg )vg**i-f mlzc nb6:.
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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's loop rul3o+u8m6p+uzr z ps-90dny gvk e is 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 example o (u:yn.tw qk6ef

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the equation+v d lhf/)-jiw/iwk n,s 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 identicri lrnrwe**250vk04z g3psl zal storage batteries together in series ("+" to "-" to "+" to "-")*zzp 2 nrelw 0visl4r0 3rk5g*, and 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 bat rjz 0k;+(m7oq mj6ihwteries together in series ("+" to "-" to "-" to q6(ko i0mr jhwmz7;j +"+"), 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 in parallelrd )l3cm43 dqm ,,megf, and place them in a ci,dqmgd f3cl) mr3m,e4rcuit, 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 capa 9hoxer 1s)9r den*mu.citors 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 connected in series, yf(wun;1 03w o,ul 5h-ydk6 ln8uzh jwthe equivalent capacitance of ;zyy18 o hw w-(luwknd60f3 l5jnuh,u 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 series to a battery. mooao+n f 9 k:vlfmtq0 -)01pdIf a total charge of Q flows from the b1fotpfm9:a0 vlo mo )+0k -nqdattery, 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 co:fa*mq9 jg9vv;s)atz nnected 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 capacimepiojzk ur83bm*, 1+tors are connected in parallel, the equivalent capacitance of the com8zi ,p e3j1morbumk+* bination 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 cuk tza sy5ovf-hi+ksc/i8 u*z .f.8+sonnected in parallel to a battery. If a total charge of Q flows from the battery, how much charge does -i. oif+k+*8cz /su8hty5fz.svasku 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 RC?n 8-m3 hfy6ihv

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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 conq am0hdrg 7kl8 guqs(26tczw; *sev40stant terminal voltage. At the moment contact is made with the battery, the voltage acrosszvraq sdk c;8lhws0q 0ge2t( *g4u76 m the capacitor is

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of poaf bg 6f;oa51r g 7 aq/ssab1:z;*qkconstant terminal voltage. At the moment coq gs: rf z5a*/;saaof67aq;b gpo1k1bntact 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 idealar v(d02d10p(i btn gh battery of constant terminal voltage. When this system reaches its steady-state, the voltage across thehi(dp( rngt0adv 0b 21 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 shouldxmr/pt+xci.+r o4 m tve+0 z1i

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer can be converted to an ammeter by the addition of gjer(.key*e* ijgy1uk -k4o-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 obtained6+ vwxr5. rb7b-s5rt l9a tbww by properly placing an ammeter in a circuit consisting of one resistor and one battery. As a res6t-w.t9 x rb lrbvbws5 5w7+rault,

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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 ammeter's s2 5v4qhqv-wvu ,xjy +vhunt 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 l df+ehs49mz(9- hvsb a voltmeter 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 vol-f sh2k k0sqmjo9 8gc,tmeter'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 ml+7sm611 0 zkxgkrzvresistor. What happens to the total cz1r7 vlm06xkzgms+1 kurrent 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 wiu:le(5pd: (ovu f3 fno8ynot1 th an ammeter, and a voltmeter 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 resistance by dividing the voltmeter readief3o:o( n:utfp 51(nv u8doylng 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 voltmeter is vw-o/3v6rev z,k;n,xwkie *tplaced in parallel across the resistor 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,i,-, * 3wve;ovvz n6rwxe tk/k the value obtained

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 20 $\Omega$ resistors are connected in series. What is the equivalent resistance?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four resistors of 12, 3.0, 5.0, and 4.0 ,ctn cklq1v2w taf1;9 oqv-g 2$\Omega$ 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 126plk 6z ol6z;p, 12, 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,; a z7zv.;zvr,cv.tpzm xvf;: 12, 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 combinatdgiaqk ; (1sd.ion 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 combinatib nu-0gxpqij0d-t2-wc p i (f:on 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 parad3i fay3,l3d -ppg9dso v)k s(a67 8nm z9qyakllel combination of 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 12 $\Omega$ resistor?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a para4hx d2ix; c bq5hu 66uhmrny9/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 intos j k0w5lxp-o/ ;z5.tlnwiji. 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 c ym 1ti2;x+xgto a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W miixy2mg t+x;c 1crowave. 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 m0;tkp j-w0khla ,s:c you can connect in parallel in a 120-V circuit without tripping a 20-A circuit breakemkl; thk00 jc:-pa ws,r?

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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 m1 pvzbm *r(6zk;gd1 n$\Omega$ 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 30 duvf 8:dvzpyo + gg/6+$\Omega$ 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,pcnb6p+kkb)k 5/7 3g)leh;o jy fn2g k 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 9.0)kls2w li+ti8/)c0wahb +ft j $\Omega$ 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 5.0fzxoag )(4xzby7. ra ) and 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 aem t35de 4se2:x -vywend 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. 19-2:)impah g 4.x;pa .*x,9qr5ygdc hglh?


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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 throughbs.z6i y6;1 ahcj/vyw $R_2$, 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 Fig(-:0 fmkhn- yru+v ppu. 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.oy;y i3qj92a.o(p.ymia(4 m mw t i(dk 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 the current in the*xh*o77ji f eg 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:fav2mdjv i58 xt1m,m 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 Figef*v1 v.vrs6oy j csyvv-*: k0. 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 poi b/gx-eog.sb/ r8dy(wnt 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 Fis cg 6 zb7,n34h3rlchig. 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 f9tqh u)p szuhdz(9v r* x5*p0g2 j+megrom 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 potentia60lcl, xgr,vtg w;h +rl drop 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 in the 9e ccjajsy) lwk6 ,g7zdr /oun v;e)d.(h:z6s 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 thenj+dv3ize 190q-xkm 7yy tm1z 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 in0 (jqi ,j:bd51(ovwvvhxsrl6 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 the 12b qlo maoquf520h40 n9ng+r3z $\Omega$ 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 18fe p1:a-di ywvw. xt*6 $\Omega$ 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 solv:* nu/rl*zp 1 izcyd5id wire connecting the upper left and lower left corldc1/z*u *5pviynr :zners?

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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 capacitance off)rjcq *p2qg + this combj+ fqqrg p*)c2ination 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 capaci3 ymepjop.u:n7jxp;0 tors are connected in series across a 12.0-V battery. How much charge is;ue7nyxpopp : j.jm3 0 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 capacitors are conne8o(wyg nu: .qkq +hk,hcted in series across a 12.0-V battery. What is the potential difference a+q:(yk nu.gk8h oqh, wcross 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 in series across a 3.0-V baugmck7i;z .3m4 b j)kfttery. What is the vo 3m7.;z) jkmkbcgi uf4ltage 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 capacitoh4-pvlwt3y(di c8k3jd)bkt 9 r are connected in series across a 3.0-V battery. vlw(3c3 bk p hjki)4t9 t-8ddyWhat 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 avvr 3-x 4lv0fire connected in parallel across a 24-V battery. How much energy is stored in this combination when the capa03l ivfr4v-xv citors 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 m b *i+(;ebyjm:4vak(d xmx ao(F and 20 mF are connected in parallel, and this pair is then connected in series with a 30-mF capacitor. What is the x4(o:* ja bb(v;m+m i adkxe(yequivalent capacitance of this arrangement?

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92#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connected in parallel. The n9md gb(r /r5wcombination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent5wr 9nmd(r/bg 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 are connejg je h4 x9p3;p q7l.:hlb7izxcted in parallel. The combination is then connected in series with a 12.0-ih7;j b h.7p3 9x4geqzx:ljplV 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 aelr t,f// 0gd7-mlty kre 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 aclf/kym- ldt g7/0ert,ross 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 througha8 h e*tt2j35ibjx8ef 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 then discharged throu :9gld;z l f(fjw0emjx3knu-9gh 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 capacitmjszg6hjp/15fu9k. mor is/zp.mk95jg 1jfmu6h s initially uncharged. The RC combination is charged by a 9.0-V battery. What is the change in voltage between t = $RC$ and t = $3RC$?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-mF capacitor is charged to 6.0-V. It is then connected in serie 2cz9wxnm5 :)+3 b huvwmyqfl6s with a 3.0z n:hmvw2 l 5+y)cqmw3u9xbf6 $M\Omega$ 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 resishgd5-+ ftc3bj tance 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 nlz)c ga86* mtf2 j4n t7+gozlof 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 inl 5e.noub-e5j ternal 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 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 y 7e8l5okv n8ta coil resistance 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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