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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 differn1bqrp cvo3*4z;m/m sence between the terminals of a battery, when no current flows to an external circuit, i/1mob43mq ;*pr cvsnzs 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 a battery, when curre ) q 5pb1w3bl)ud,iaignt flows to an external circuit, is referred to as thwdub)1a)lii3 b5 qp,ge

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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 seri:avn/q w q*-ng6ndlc3es 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 sqjydq+1oqb.f kh(l:ic9: ih68 qn,fc eries,

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors f-)e8we wbu/oa-nw5mare connected in series to a battery. If the current of 12 Aob - a8-w een5fm)w/uw flows from the battery, how much current flows through any one of the resistors?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors r*i22vqyei d)are connected in series to a 12-V battery. What is the voltagid ev*iy22 rq)e across 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 5 ,k xccutadtd/o*lsbv arn;h( 2+6x/in series to a constant voltage source, the power supplied by the sobahx* /5 vndx+t cud;/ r( l,kt26casource

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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 in parallel to a batqm3af*-.b/e gaz3c7wxobf;( y pw 4jvtery,

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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 tha*f50 l 8vfbhdgt

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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 v*td -)xn h fweb/qu8sxy(3u ;to a 12-V battery. What is the voltage of any one of thex) (-ybdun*thquxfsvw / ;e 38 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 baq3- 6qmhu iq*vttery. If the current of 12 A 3vu h iqq*mq-6flows 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 parallel. Wha96 2qedu+j 7 igalvx 7c p9ucxta,h:6zt happens if one lamp burns out? (Assume negligiblee xt dqagua+9v ih6z7pljx2 u:,97c c6 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 to3,ry i8 pbnnvcjwdx+-.75enh a constant voltage source, the power supplied 3ep8xnr ,c.w yn-ih 7bv5dn+j by the source

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identical resistors, each of resistan zd- m 11vev8sbh5*sq(au9rre ce R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected in parallel8r* qv-a5rsvz d1hueesm b(9 1 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 jungc-m.e8vwx3,0-to;h yw,, dos jlnhr ction 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 rule2 ah(lf6 ql4rl.
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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 *)5p flmli+ee 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 exaqj1 ed0(w4xmsdn kks .1 .+n 1jutxov0mple 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 heru7epl n32mb8ne is valid for the circuit shown?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together in series ("+" to "wn ;x(3 5svybn-" to "+" to "-"), and place them in a circuit, the combinatiwx n3;(sbvy 5non 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 ("+" to "a.pvbt+tkpqn)98na( ;8og jub1qv *f-" to "-" to ( n1n8 kfp.q*av pjb a9u tv)+8qt;ogb"+"), 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 u+b 5i(,:ai1ngfobr t storage batteries together in parallel, and place them in a circuit, the com ti5gibfb(1o :+unr,abination 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 connectm,/0+ sesadjmed 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 r14dvh5 z0axpare connected in series, the equivalent capacitance of the combinatiov4zrh5da1x p0 n 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 a7 2 c w,t(vkyx/vnwwh+ battery. If a total charge of Q floy7 v2,(c+/xwkhw ntvw ws from the battery, how much charge does each capacitor carry?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in parallel to a ba*x7* wnnxax 0fb f15ihttery,

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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 capaci wdj1 twjwv01)tors are connected in parallel, the equivalent capacitance of the combjv1wwj)1w0td ination 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 af9 e w;d98shux7axgj3 battery. If a total charge jadhew 9x9ux783gfs; of Q 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 quan j/ .9;wyxg5d/dy wisvtity 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 in9o-b bk+ulo *bh: rrn9f cwp-5x -e1m+p6 cpbp series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage acr:rp6e hc9kp oomu5b cn-b- +fx9pp1brwl+b*-oss 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 capach sfcte1, fcs,bw+3 vcf969(g5nnt k aitor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the vfec f,v96wnat5k c9h tg,sfc3 n1 b(+soltage 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 capaci3xij9zf+cttaaoc 40m xm;l o(q*1o2tb n x7 :ztor are connected in series to an ideal battery of constant terminal voltage. When this system reaches its steady-state, the voltagejon xz4m2co 09t+bci* ftl q;oaa7t1xx:( z3 m 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 should* gaubt7m i./0dzmh 29/tt qrn

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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 o(/bp rliv iev14 z7-+pmr nuf,f 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 obw: r a.;rqa3sqtained by properly placing an ammeter in a circuit consisting q.r s;wa:q3ar of one resistor 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 ammeter's 3ga 5vu a)*qyoxe0e/d f:er-qshunt 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 galvanometer685hhykzi3 .ashjxex7 /fi 5i, 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 v1 cryyr huy k9,0qx u50koh(3toltmeter'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,/7 e(rshu d qu -cn0xxs8+ci+2ncgah by placing a voltmeter across a resistor. What happens to the total cu,x0 c/ 7a c+iq2hre8nhcus -(gsn+dxurrent 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 vd 8(.vrjurv) g(*bgh4wz t.dvoltmeter 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 resi vv. udjzr8vw*rgb(t)h4 .gd(stance 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 wit *pq we)wd*x pxlm.i,*h an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. Ipp** wq )x*m.xedi,lwf 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, 5.0jf: 4 uerq5z)dh gl:d4, 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, and 6.0 lxa :r./-z l )gw2gpnh$\Omega$ 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.d xjs t :ud/q+r1+ l1vc;7b;hp)nhbp f0 $\Omega$ 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 xo4*.;1v (ww:cuwo t ,np;ltimsku 8ra 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 1m8fdxvln 3in5 29m hma series 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 nnvayh/i). i0:ud+ud into a parallel 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 parallel co(2f0 bu,q2 x j cn7 ukyoc0xp2ygev(m2mbination 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 ofy4 8endg c8x47(nfslt(2 zllc 16gdw q 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 arqp)mj siuci98d- b.odc +8d2ue connected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were ope q j)u9 + c8pm2o8ub.dicdds-irated 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-W7xwt5equf gi0t6v* x , light bulbs you can connect in parallel in a 1 ftgi*7v 0txw5exu q6,20-V 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 2.0l u:,lw.q4v ktgr58iit r;nr2 $\Omega$ 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 ad9zd44ddypv 4u5l8rk m m.g:gnd 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, 6.0 +rkioa *:)ynub10rt)a yc0hv, 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 9.0fds8u2i+/ b ki $\Omega$ 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. )hxk n/p9h8x -wunvp60 $\Omega$ 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./ ;uwjfia9(r, * w kg/nc)uybp0 $\Omega$ 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 ofh- za 06;d5so)mfczxl the 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 through)p +uw fe:km* kp.1ve9tz fm2n $R_2$, 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 ofsqrk-p; glt( f) 5)1sn;hpycp2nfd:a 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 currey je8lijkuv9oz+*v/ gu+:v s*nt 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. 19-4sbz9 tjoo:crxu;ff4d- b c:gy3 g(84x, 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. 19-4, determine 784 ,lpme wozuc1o-kgthe 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 rgi u(b6+ /qa8,d id.zfuyv9x pelative to 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 of point B relative to xadbqpf- )/ 2* sfbgd;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. 19vl/cepft;1cxsq0de l,*mk. 7tks t 34-5?


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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 in 8/f ( fh++v zpumlnzts+z ib116pbgf0 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 dro9clkrqf6z9vf )p) kt(p 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 g ggwyo/2qct/;-cq1nin 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 ince*uhat8 t sh1jc5)(1 hfgr2m 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 i9bcnt g wftew0hg 12b+p*uno ff:.+ah)sp3h: n 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 t qbi vpd7 275sqj4m:my jd(jq564;f t ocg5hushe 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 the 18 6gmx2,utde*6kc;x : 5snueuvchz:13 vgnj 7r$\Omega$ 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 the upper left and lower lefb a,yai)e4j a(ob3-jf,n;e vf t coryj ja4n e;f3-iovaf ,()a beb,ners?

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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 (uls0m8 fu-iw*1ej 1me(qvj7 (ptohu of this coi((qf0(-7utmw h* ljvu8 esou jep1m1 mbination is

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.00 mF, 10.0 mF, and 50.0 mF capacitors are connected in series acroz sjr0asz+n3-iq3n j 8ss a 12.0-V battery. How much charge is stored in the 5.00-mF capacito 3jnsns qzijrz03a- 8+r?

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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 connected in series across a r cr4oqeaybh (r4200b v0tp8 b12.0-V battery. What is the potential difference across the 10.0-mc0r qbybrap44 0obvthe08 ( 2rF 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 capacie-njn4 ,r ;t tsz dc(xt:m-ne(tor are connected in series across a 3.0-V battery. What is tns( dnen tc (x-m,4;t t-r:jezhe voltage 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 sea om 8tq *d8w6ic:eor0 ;nm eprgxa)2.ries across a 3.0-V battery. What is the voltage across the 2e;m 82e a:m nc8wxt od.ro r)q*0apgi6.0-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 acrosk7 tjny* ;:j(5)iu5ved:jf lpojm+ ies a 24-V battery. How much energy is stored in this combination when the capacitors are f: i k;5fpmyvjjjtuj+ di n*l75)eo(e:ully 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 mFsd7/ afwqtv5ud 1ijmxlb u0z7 wj2/ 00 are connected in parallel, and this pair is then connected in series with a 30-mF capacitor. What is thew/ jtdxf0s7/l0 qvw5j mu70d 1auib2z 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 connected in p aogb09plt 3r,r w wpoif-65j,arallel. The combination is thw i6popft la5r3r-wgj09,o,ben connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent capacitance?

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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connected in parallel. The combinatiop.a jyh ti-mt lkki 5mbatz) 5,53if(-n is then connected in series with a 12.0-V battery and a5k-fmp3t)5b ty ji ,ti-zm hkai(.5al 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 combina;g0u3cemm 5fao+9b -ccy: wlid5 hgp2tion is then connected in series with a 12.0-V battery and a 14.0-mF cag;igp2w9o5ecm c: dbfcaul +- 3mh05ypacitor. 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 char)t-+nz djkv 9vged through 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 thed,igpq j4rdzt 2 e8,o, 6xa6vxn 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 connec3t01j pxf 4yjyted in series with a 0.50-mF capacitor. The capacitor is initially unchargedyy43j1x0ptf j. 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 series with 34m2r/mbup*r 2r a rkma 3.0 prar/23m mbukmr42* r$M\Omega$ 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 resis/ 3j m75),+ l uzvz9a rbbstep/jbhat2tance 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 cy7ou3.ult0 q md/gwh2qyjz5)f s2;+gju x.rfoil with a resistance 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 re2bbyx 6ihf l,4sistance 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 cce 1 vqly2mwbnj 7z30,oil 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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