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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 the termiea,2xjnabb7p1mj-2o /7ih (mf 0 accj nals of a battery, when no current flows to an external circ(0ni7-b/jmb 7 xh maejo2cjf pc 2,1aauit, 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 a battery, when curk + azn(tdoy,6rent flows to an exterdnoatz ,y 6k+(nal 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 to a battp swc x/dy5rp0 g7s.*hery

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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 series,j9.w8 i 6iqsfchu :4nw

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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 in series t.9 hf1ggxa9i n l03ufa+:yomkl: egnejv) .4ko a battery. If the current of 12 A flows from the battery, how much current flows throughagvx9fu0hlg93 4kf+y .:i: g) .anmjkneeo1l 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 ar0 c-xu sp5wdhd0mbq9-e connected in series to a 12-V battery. What is the0bpqs0d x9dm- u-w h5c voltage 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 in series to a constant voltage source, the po72 j7mt6y7y lagoj: iwwer supplied by 7:7wij72 jay6o gtmylthe 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 connected in parallel to a battery,e-, ,vzun7 ad.hywd7dwd s(, m

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connecte8xamf1u .,pjz+/csv6 zbgt+ vd in parallel, we can be certain that

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in parallel to a 12-V jgkr bu :,pd;9wp-q7fbattery. What is thrw; k p qf,:gbdp7-j9ue voltage of any one of the resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in parallel tmpq731u vs/fz.9whe j o a battery. If the current of 12 A flows from the battery, how muzf vhq/7. pj91ewum3sch 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 connectedd/+, *m(x5 no5r qv .z0 eatbmzmad+df in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wires leading to bddr,a5dfe m*zz m+n(a0t+.o 5 x/m qvthe 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 apwr(t+ba s.e7ew. +s y0ts i/5-rdadwdded in parallel to a constant voltage source, the power ssydw r 0t b (ia.sswd+/5a-r .eewtp7+upplied 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 resistance R. The maximum powfj ,6se8rdf o6v6vau- er each can dissipate is P. Two of the resistors are connected in servof- r,e86fduav6 6sjies, and a third is connected in parallel 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 ju- kd: jj7(zhx )3ltjgl ekv0(tnction 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 rule jvs.i.c+ xwx8fo98q j.
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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 example o 2aol 1g.oj+1wwe )dwqf

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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 :fx-;huu/fjol3tw, mvqh +j / 1ghvs(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 equationd m8:hsp. 6.mms j.mbas 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 batteries together in series ("+ guhq 5r5 +ut-tjl:lqg19se; h" to "-" to "+" q t5 q5hllu :-g;st1u+gj9erh to "-"), 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 batteries together in series ("+a0al2fi *oar(2vy aw+ " to "-" to "-" to "+"), and place them in a circuit, the combin0aywao*f2 a( rail2+vation 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 stor(fj +e:+i dx ac6oniv1age batteries together in parallel, and place them jn6:odxi+ a1+vcei(f in a circuit, 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 series to a br 1lpod(76(r t:3 tmyrjn(wv tattery,

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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 seriessy6xd lga* z5:zf yw5p9xji7t -qm4i1, the equivalent capacitance of the combiit 5y7ij5zx myswz9q :x da16p4l*fg-nation 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 connectk1rkwpag+5ug/f 3v.yb l 20a yed in series to a battery. If a total charge of Q flows fro 0k 5la+2/kab ygv.gfw1 3yurpm 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 connectedoq(0lyl z;h aju/-8rr in parallel to a battery,

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are connected in parallel, the equivalent capacitarhi)ca pn7 . nx;mi0-once of the combinamr .7i oa)nx c-p0i;nhtion 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 paral7dba(:0 v wxjflel to a battery. If a total charge of Q flows from the battery, how much char7:( ba0vwd xfjge 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 quantitzf g5- ic8no4r1o-dcwy 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 seri ktbgxb0y7 ;u3es to an ideal battery of constant terminal voltage. At the moment contact is made with tk3u;gyxtbb0 7he 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 series to an ideal batte8w( -3 d/da ,/ypjazsoxn7 ilhry of constant terminal voltage. At the moment contact is made with the battery, da, (o8yj7zwn hida -sp//3lx the voltage across the resistor is

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of constar wf58. 3shqf x4r+ssr3n7 jaint terminal voltage. When this system reaches its steady-state, the voltage ax8rqr .wj4nfsi+37 ssf5 h3racross 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 shoul4 63 8hveo9wh3mf-r 3wdfufb gd

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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 rqzjqp+*94y (h wmxg: 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 prt 195f67 i)mjzrwmxutoperly placing an ammeter in a circuit consisting of one resistor and one battery. As a5)r fj 6tm7t 9x1wizum 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 o2rbp;,s 8lgra;*n,y2. et nfe v7 vawwf 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 volt96gfw xkr kle (acx7y1hgx2 73meter 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 ofdr4y 432(n t kcpq3klh a voltmeter'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 placnm vg9 zbde*unl9s 9dqxp -d7s*;j7) king a voltmeter across a resistor. What happens to the total current flowing in the 9p-xs j )nenm; dddg z7u**sbv9qk97lcircuit 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, 5svso i0w(b-tr0 )g thand a voltmeter is placed in parallel across both the resistor and the ammeter. This networhrs)5 g0tb(0ov tsi -wk is then placed 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 wired in series with 01 g dkl4xy,i6gjqgu(an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If one computes the valxd 6g,( y1 g4u0qjkiglue 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,,wqar av4.dhj/7tw p8 5.0, and 4.0 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12, rx ug:j*s5uds. xh-: d12, 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, and 6.k91ynsdjcm jw jfl :,.ij*:;n0 $\Omega$ 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 combination y2 6x. p/vvxwjgf9r+wof 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 i4jjmb:+bty3z kdq. z 6nto a 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 into a pardx9c,9 b w1y qv+ b-gvr;eba.fallel 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 ibo y:7-xnt5axzvrr uvv( g0),nto a parallel combination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 6.0 $\Omega$ resistor?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel comgmq-;t* rp/rt2n3kcr uz3tfn l 2 m7l.bination 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 to a 120-V circuit: 12008/ bygqq aonk 0d72ikpi--be7-W toaster, 650-W coffee pot, and 600-W microwave. If/-bd7agenbkyqp o7i0i qk -8 2 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 pa i/pnl1 /eu, fne)fu7zmfy (oppk6r75rallel in a 120-V circuit without tripping a 20-A circuit breakerpuep 6n) 1ezmlniy/f,rou( p5 f/f77 k?

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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 gx bdxo5:(* +c;5os aqlyb ukd7(zly *$\Omega$ 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 )vd r1qs1qqr ;qb;/zx 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, and 10.0xqtco)k;f ;mtmt :2 h9d pqic:11n zg3 $\Omega$ 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 ,+/ rt/:dr 0mtl clx1+a3i t opznz3rsand 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 4.0 $\Omega$ resistor?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0mkf*usjq6 7d *y,zj( k7 ;5tlwhzhf2m 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 and 9teek1 3r dj9lx-t 2fq(.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 circui 5 n )g/rldi/tz3ff13db az4wgt 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(*e2 jiaovc v1 $R_2$, 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-w/duucf9c k2g;94,kdw2cv lw3?


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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 th; dagh8d6m5zn e 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 thep q4 hiz3.0vgf 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 Figh 10 jvhcke3j3. 19-4, determine the current in the 4 $\Omega$ resistor.


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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential cy:4 1 ow gig39dn6gghof point A relative 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 relat q, e/fsfdd:fc4ii; u)ive 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 p,*v-d6v uqhdw*7jxx D relative to point C 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 in -cbtv3z -0qm jFig. 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 Aucp17/ pz2pe8 c w0xjb bos)4r 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*, ro ,df5vd,x2qzcf;iqc q, z 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 the7f qau7x3hd ;y 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 te .jk3d-twr3 vhe 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 theh xzc. so be:i;+bl1b3 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 tq.e*b aqmp9lwg9e 9 k4he 18 $\Omega$ resistor in Fig. 19-7?


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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the solid wire connecting the upper left and lower left co93 ea;kgs zt b0ywyt)3r)0;b eygt3ts a39yzkwners?

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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 -foclnj2d c,ha d+;*-xe 2ivl6ske+v of this cxa6+l*nof;vedce ,d2vh-k+cj-l is 2 ombination 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 across a 12xw j (kt162 ,r6jsnh(*qp ylfg.0-V battery. How much charge ijqnx6rgltf62, j1(hsk*w p( ys 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 conne(o*leemx : yo*cted in series across a 12.0-V battery. What is the potential difference across the 10.0-*yxle *e m:o(omF 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,vci6 encs76.by q a/3resy1p y1b fi,-V battery. What 6e p7, snbb1evy.rfs,qaciy316 /ci yis the 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 seris3 ti7 :d:2op9aradytes across a 3.0-V battery. What is the voltage across the 2.0-mF 2:3y: ao p9ddat7itsrcapacitor?

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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 pa0h,7tfe od 7lhe:kphg 7wj/h; c): odlrallel across a 24-V battery. How much energy is stored in this combinatilo7)hhj tp0 7eo ,/wh gelh;kc:d7d:f on 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 are connected in parallelhh x3-oc(a*bac a5ub d,; zif2, and this pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitance of th,icu;hb2 z-a(5ba dfxo3 *a chis 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./ oi9qo;lwfp600 mF and 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitio6;l9/w o fqpor. 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 parallg: e2.5fgv hsfel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the charge on ths .f:52ghf evge 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 bak1*95mp dgx1ah hx8pml+ u3 u z/xq* gn1h9mmF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage across the 6.0du9g59/u3nkxpxg a1+p1*mmlhbmzhhx *a q 180-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 thzkfti / +dz/s42kcg-cedw 6d5rough 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 taxn2 j96g g4wwhen 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 ca-hm m )k5zb-nlpacitor. The capacitor is initially uncharged. The RC comb hb5 )k-z-mmlnination 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 thizg 8-iojy1.0 x)bm c 1w3vpbfen connected in series with a 3.0b1- bypw )1i.8c3zximj f0ogv $M\Omega$ 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 i tp v(e4(g ckwtc-ru 7sb14do5nternal resistance of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a milliammeter capable of reading up to 4.00 mA?

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100#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has a coil with a resistance bt71.df/mt xg 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 resistance35z mh 3em21uwq5i zvb 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 eee mga)ea8p1op+)w140.0 $\Omega$ 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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