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习题练习：Physics Unit19: DC Circuits
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 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 )rgusy6i-m 5wat-to81a- an nthe terminals of a battery, when no current flows to an externa 1ui- swma no-6ta5)tganr- 8yl 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 )*um.jywv ux2 between the terminals of a battery, when current flows to an 2j. )mu*ywxvuexternal 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 connecte2/;e5f n jtjfp8iu)jnth j4a5q6j 5p w,c0z ihd 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 connected in ss9:uh)la rbr,p,i,-dmh-t xperies,

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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 +r18ilk x ;tbnconnected in series to a battery. If the current of 12 A flows from the battery, how much current flows through any one of the reskix8rn l1+b;t istors?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistorbmq1a7m mv ) k8qhdll(-w.s5bs are connected in series to a 12-V battery. What is the voltage (q8dh)v k15s-l mmbabmwq l.7across 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 constant v h ujlane4q*5;4oxvtp9 f1flsv;jo0 ;oltage source, the power supplied by the s5loujs9 ev; na1 fj*qoxltp 4;0 f4h;vource

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected ib0gti1:h si6nv+ rr, kn 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 that(tcsl ; 5psi1xgpo/6dcrl )8n

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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 battery.)0.mv*agtosr e- za0jipj,(w What is the voltage of any one epmgwtrz)(,- j* io0av.j0asof 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 the cuno1tr ;;v.ni urrent of 12 A flows from the battery, how nv iu;1;otrn.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 wk 4n prbnna 9018rxr-Christmas tree lights are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wires leading to the lamps - 08bxnrrr1pnnkw94a .)

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in parallel to a constant voltage sourcblplho2k hc,f)8 ad93e, the power supplied by the socp 9bhd)kohla38,f l2 urce

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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, ea 2h ukf*0kqlf8ch 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 parallelk8f*2 qf 0uklh 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 junctionplu 9nk cv0p0+ 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 lotde +cc qtijdf+8::/u60l ri9f4macvpoq65 wop 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 ahu7u.2b wtc;+y s p1urn 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 rulv6.knf sdd(x w*fns6:yxl(c// lje.oe 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 here is valid for q)-/wmj9ap a.rxa;x lthe 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 identicazj q8b14 r8czzgt l,r(tuuq) 2l storage batteries together in series ("+" to "-" to "+" to "-"), and place them in a circjlcuqbr8 1 ) u zztg84,2zqt(ruit, 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 i6dony - ngd8v8un4+a z 0rn/fzn series ("+" to "-" to "-" to "+"), and place them in a circuit, the combination will 8rd+vzz0-/g6d n8y fn no4unaprovide

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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 ici;e r z6p37hjo r7dm+dentical storage batteries together in parallel, and place them in a circuith3jrpi6zd;mo 7 r7 ec+, 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 in 83x vqr0ifns,j3wc- hseries 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 capacitn .8 g*nmpq6twh e1dw.ors are connected in series, the equivalent capacitance of the combination incde6m.n.h 1twg8 w pn*qreases.

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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 connected2mvq0p; b)7fcv8zsb pefm,.lio73a h in series to a battery. If a total charge of Q flows from the battery, how much charge does each bi,b3p 7 h p2v0fevmo .lc7)aszqmf8;capacitor carry?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in parallel to a gwkuo,ih3 (4t2b (ocy 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 capa .uu,jp2 yntt5citance opu.t 5ny,tju2 f 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 3fggbcfp a q7(,x4/ yia total charge of Q xybi(3f 7qfgcp,/a 4g flows from the battery, how much charge does each capacitor carry?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the unit for the quantity v:-dpsp mv91* ci9e0wnn- hsfRC?

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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 chtpkpk)bqgcp++c m 1ynr 0(ay2z,h,f5ue p/:onnected in series to an ideal battery of constant terminal voltage. At the moment contact is made with thehkp5:q2 (,f, 1zcgtppa) h+ upc0nkbyem yr+/ 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 seri kyr2r lm:eu026px(s *nsmrz.es to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage acrn2(esmz2.r*s 6x0 rp:ur klm yoss 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(7l xnsyxxs2(baji7u2 z:t-v constant zj sxux(nva 7l syti272b:- x(terminal voltage. 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 shoulxma61/8e j wm7 q)5czsifous9d

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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 torsw exdgu* x9zf8+t5sr1/r3 j 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 an amm8 a *ijzem7i-reter in a circuit consisting of one resistor and one b*iarej 8i7m -zattery. 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 resist t;lj19mm4ogj zhe / j4zzvj,2ance 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 wtnd/b4ayc 5fm.b7tlj rqyv.-+h q61 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 voltmeter49l8p )v5l3s yhp4enk gfdk z5ut,.q j'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 acr(bkxs /0(+ vz 0bypxydoss a resistor. What happens to the total currenys0bv yxkz ((p +/xbd0t 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, 67 ocxjgc0.6kk zl 1e2oh 9h2vpqyz z)and a voltmeter is placed in parallel across both the resistor and the ammeter. This network is then pl 6 )ologkk72pehc 2 cxzzzj16hy v09.qaced across a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wireukxbbzn 3)i)y 1jw( 5hd in series with an ammeter, and a voltmeter is placed in parallel across the resistor only. This))nikhz5bb3wj uy1 x ( 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.t:rrn/b v//fs 2a;lb y0, 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, dxf1***y n)f -uip 9wja8xrlpzk4vt112, 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;oitq/ vk .e+y, 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 ncd 6y:zs3zk9m 22rl+/dy gbdinto a series combination of a 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 4.0 $\Omega$ resistor?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination ofakea n014nli,1bee 5v5ffm+j 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 combt0:0mlgo i: uo; m2gjdination of 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 12 $\Omega$ resistor?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combination of a stoldu7ia7dslv69g,-tg t:5 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 au,z y2(f4n hy k:f;lmx 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistor. What current flows through the 4.0 $\Omega$ resistor?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0 $\Omega$ and a 12 $\Omega$ resistor are connected in parallel to a 36-V battery. What power is dissipated by the 6.0 $\Omega$ resistor?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The following three appliances are connected to a 120-V circuit: 1200-W toa0lew fit51p o9)ex9kister, 650-Wipi9e9 )xtlkfe w 051o coffee pot, and 600-W microwave. If all were operated at the same time what total current would they draw?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the maximum number of 100-W light bulbs you can connect in 5*lb,d gafdl:( vrug+ ;kc 1rpparallel in a 120-V circuit without tp5:l( dd;r k gcu*,fbva r1lg+ripping 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 ;m 3j3ozbzpz*e k:d,r$\Omega$ 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 an5,t:3 wc3vt5mb * . kop.mqnqmg4kv*8e o fakgd 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.w urv4pr57s9vz 6i;aaw 8rx3d 0, 6.0, 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 9.06bpfmdhucy2s9)s 4( s $\Omega$ 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 anzh bb fxq99x g9s/z7u1d 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 l4ki7vx 5 zj9kand 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 circ1-pr m(30;fgb:yeo/vy kc; rzjhe8ituit 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 throuq cmpfw6e)g 02.9i6z, pq;tuf-zt cxlgh $R_2$, 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. 19-lpga4cst :y 0+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 Figal qwyqvptj pq8p37 x7*pae o4hwvg 87;;l8; h. 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. 1gdk**2lo-u6cu i o7bd9-4, determine the 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 Fig. 19oldt/, -p+o;dipkux yg, zz 78-4, 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 to1j7q ne*hg+k;cwk 1 zf point C in 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 5s bml88:ito j3j8v:lcgfyn.of point 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 C1.:b0 d jtupa0nufy8h ;jbv+k in Fig. 19-5?


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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows from the battery in7bd7 ms-xl c+o 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 p7irq(6u az6mioint 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 c-*zcqt8 i8w9pm*zt ee nbu14the 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 currenism8hpkp8 3i*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 thenqwsza k 80v*q05rmq1 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 128xzvr 92x(o2wjwza8h+hhhf* $\Omega$ 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 t:31jijb5mpg z he 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 connect /ym*4jai4 ;arfe)j.iq rm+pding the upper left and lower left cor*;ijd qj4+ep4 /)rriaf ay.mmners?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 16 mF capacitors128. 9g gkhimowoyjr4 are connected in series. The equivalent capacitance of this combi 12ygw4i8jrkoo9m hg .nation 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 50.0m0wqv:(.3mso lwm qh0mw ekvc4 /, q2f mF capacitors are connected in series across a 12.0-V battery. How much charge is stored in the 5.00-mFc(qovh: 2 kmql0,w3vm/.0mwsef q4m w 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 caf3 7cue84 orqg;ifmb.vw2v )3i8l hnopacitors are connected in series across a 12.0-V battery. What wiqlo3bg7m rf3c . )vuoih;8ef82v4 nis the potential difference across the 10.0-mF capacitor?

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacitor are connected in seri(nt+iscn qwd/0( (2p7y 9uczf awnu n+es across a 3.0-V battery. What is the voltage across the 1.0-m (sn2wycd9(f/ +it cznp+nq7a n uuw0(F 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 seriekgd 8zd;san7/ s across a 3.0-V battery. What is the voltage across the 2.0-mF capacitor?s z7d8gna;d k/

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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 acre ,h*eziknbmsd1tk +,8c.u 5yoss a 24-V battery. How much energy is stored in this combination when the capacitorsene y u kh*z.m,+1 sktd,i8b5c are fully charged?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Capacitances of 10 mF and 20 mF are connected in parallel, and this pv, ,kqmmwxi9crhcbe 4((1c (l/xs, z fair is then connected in series with a 30-mF cal( c,wxmc vsr(,9,ikf1x q/( zmc h4bepacitor. 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 are connectehsj8 r(h+k .q/rtkz) td in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is tz+ )h rk kthq8r.j/t(she equivalent capacitance?

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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mu ( 0+lwdb4xzjhzpu)6 F are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.hu0zw()p6d zb+ljx u40-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 f:q,:h( iqdsz2( hctj in parallel. The combination is then connected in series with a 12.0-V bat2jcdqsf(hi, z(: q:httery 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 t(0vc 9zbs4zg6urt ceqpi x /698b6p bqhrough 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 disciq u ,fo0md u/dkb1/ b+a0k,epharged 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. Thkh a **ii;s(/-ffs48kfo lbob e capacito*f/;s(sa b4kb8i*kli ff -oohr is 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 c0m i:ko4r.d 5gefms/zonnected in series with a 3.0 :/goz. k05 4reismm df$M\Omega$ 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 resis8lw t+o)wwe8j;g8ttd 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 resistancro*k a8puz)y23+q * b-jgxhb ve 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 resie ;)y.*b6jpa ch* +g nt(ihfxu jo/uk7stance 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 of 40.0 63zxl(1vgd zb1,fev k$\Omega$ 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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