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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 terminals of a battery, when no c6ohu: v+e z5. k*qsbwxurrent flows to an externalsq :.uz*w5v x+e6ohbk 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 betweevasgg; w6x lk5f a3k3.n the terminals of a battery, when current flows to an external circa.x5gk k3gf;6wav3 s luit, 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 tqho5f bwp1 eg-35k-wdo 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 4 tghct:je0;7yspz z+in series,

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in series to a bj i*yph1;:rlhattery. If the current of 12 A flows from the battery, how much current flows thro:lj*pih;ry1h ugh any one of the resistors?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connk 6hc/( hgbun,ected in series to a 12-V battery. What is the voltau6, hch/bkn(g ge 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-u3m8 x h ;3xg jx+okh,opzq2p a constant voltage source, the power supplied by th2m- xu;ojhh xgp83o3x,qp+k ze 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 cof 4c z,;wpj x4wli+5cgnnected 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 pa.2; opg.5wu4m hkn s)qjs0aytrallel, 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 4mr8 )rw .jrn4wqiqge(tt; h3to a 12-V battery. What is the voltage of any one of the re(q4r84hgwjwt nr;tqmi3.) e rsistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistor;8b hkqcsf++d s are connected in parallel to a battery. If the current of 12 A flows from the+hbf;k8c + sqd 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 parallk 2z422a:f(h ohz )ru,xwtttmel. What happens if one lamp burns out? (Assume zru)th( h 4at2x,k: 2 2omwtfznegligible 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 cog -k. mwzk+.d(rh2f kfw83zjlnstant voltage source, the power su+2hg.wf -f jwz d3.kkm8z(r lkpplied 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 power dud8s7h-r.,g 7i6zpi4i u3 xl)mowkceach 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 power this network canu, .mri7uk- p6c4 3dhosxdigizl 8w7) 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 junction ruleygm+hkutoi73j 9w (4k .
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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 r v,ls0jvpp(8r ule.
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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; qn j,)mryoe2:k4i9y4sycd3+gtxoa x lb3u2 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 exllgy4nr2/aq;*2: yp a8sp m+r9l gytxample 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 validq;a3rgaw:-krd e fr5 8 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 (-w1t ; a82igaha33mcpybs- rh"+" to "-" to "+" to "-"), and place them in a ci 3y;h2318hbptgmcai aa-rws- rcuit, 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 tra8ji b ctt0ff2qo qd 9j;jfj,0-96ogogether in series ("+" to "-" to "-" to "+"), and place them in ,jogfj9tojtf0 i9- rcf8 2d 0a6bqqj ;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 parallel, and -d9+ysnx7 s09tt l obnplace them in a circuidn-tot l9xy +7ns 09bst, 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+np8j (u .tdag 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, the equivalent capacitance (c-. 2hqotfx 1tn;sdo z9k s(/wfheb+of the combination increas.2 b e(;xo-tdznwcfo/sh +ts9(k hq1 fes.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacityb;qavo3be2y m69 +s2z swy-lors are connected in series to a battery. If a total charge of Q flows from the battery, how much charge does wo9 m2v6-b+ssy yqbzay2 ; 3eleach 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 paralleeer3/n lxw,y :4 mhsmc mr16o/l 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 capacitors5fm: p ah7ai d0uyr8)k3ai f5b are connected in parallel, the equivalent capacitance of the combi )7m:p5kaai 8byi ff 3auhrd05nation 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. xy trb1 svshg9v,6r3+If a total charge of Q flows from the battery, how much xsrvvb,6r3 + 91sty hgcharge 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 quantits )y thzu)jf 1haa7,48zc zt*iy 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 serupfurgtsv9a8 1*aa )nz64y 9mies to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the ynzauas r96fvm 94g*u 8) 1atpcapacitor 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 capac,/wg6(dx hlza itor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery,wla /d(6gz x,h 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 capacitj, n:ec9 iei*bor are connected in series to an ideal battery of constant terminal voltn*9,e bi:ec jiage. 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 should 0 e,eyttlha7/bm 4cq6

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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 amfw,ef/ii93r3. u :v n5uratgxt0-wommeter 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 d. 45(nkst :1m qk0sergbgb5iby properly placing an ammeter in a circuit consisting of one resistor and one battery.kb(s40s btgqg51 .mk dr:n ei5 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 shunt resistance *8einap +jls j4sz6nb;5/bzw

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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 galvanometer, one 1usubd9pd9 ubr50c5 v 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 resisldj./s( yp+l stance of 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 placing a volt k/rb,pmu x7uuuy3+v*meter across a resistor. What happens to the total current flowing in the circuit ar*7upu, xuu3 v+ /ykmbs 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 voltmu,t ku;7y m41+ekskmveter 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 y +kv;ue m4muks7,tk1by 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 an ammeter, and a voltmeter is plah 1(6 gh2cwiy-6 medomced in parallel across the resistor only.66e mhid gmoc-2( 1hwy 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, 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.ah *gtb,l6p 8 u8w hbnbetqf/+0 j8vrkti85w70 $\Omega$ 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, 1og,4 3up6b hl6pz+vm zj0 5xzz2, 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, 3y c8-wos6tte/b dm+zand 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 combinatio qo) ok5b9qs1bn 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 seriegn y*.q kay vlexwav ,8, ,t02ta3gbf4s 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 parallel combinatio ti 2ftis)5 t+e5fsmd,n 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 p.1iqq- hdq*u:b on( )+jkbds 9y pau:rarallel 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 comb dgo7zoe8/yq2g+rbj lkx+)voa6 5m+ mination 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:kmk2 o5(8ky 94ipl czc 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the samzkk9y8ic2mp(kc 5 ol4e 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 l l 4lu/a.7s sm-434qxuu codmiight bulbs you can connect in parallel in a 120-V circuit without tripping a 20-A circdixlmlcs7-s/q4a.m3 4o 4u u uuit 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 ) tc )j-,1ku-vzyv9-fw rxlzx$\Omega$ 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 0+xv,-b lk5hy kj1p3onsm ym7$\Omega$ 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 10.0 stqj0 8p4qb xvjz( xxn2+;3tq$\Omega$ 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 an.gssrd 1igv *2d 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 5.0d;o0sm i q09pe 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 9.0 h -rvwtbevj4gq(c 0 98dirw/l 2w g*s4$\Omega$ 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 resij jg;jw37oe (i( 8obdcstance of 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 throughrvhxwx-8mh0,(2 0m3 4lgn h9r qzarxf $R_2$, 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 resipkf)m5kz hoj2 8ouq z lt,9o/)stance of 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 hikmarvr7:.3)/zk k;n6s3acvyx n2x 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, dett7/1y1ouffh t ermine 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 the current inilf9w+x)21-o5 su aioddf f i8 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 :i9wafk kmw7/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 srq pqp2 d1;5vof 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 C7yagmg8gei fb 0j t:5b 2pb2/bnk8(or 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 babgl/g1nv; qrfypdg; 9oc ecq,q)8, /tttery in Fig. 19-5?


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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential drop from poorirsq 5 v*f0.int 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 7 +s y3v.+xk( onkb pgv dey89/o$\Omega$ 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 i3zoho l1r+ 0pln 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 the+z 20hhe (zhkokr.e,i 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 i6xpx56l:ikhu2 ya61 r7igon+c z 7pn jn the 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 0p+ j xe0bmd 8eedd:u. m2j/tb$\Omega$ 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 lef ye;ib e vwem* fd3o8-zwi0*tc*dnt ,4t corne0 eid*e,nv;fwb c*3t*ye8to-iwzmd 4 rs?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 16 mF capacitors are cony.wur(np 45cc* +iz 4qhcf eq*nected in series. The equivalent capacitance of thiscry(piq u 44*wnf chz5+e.cq* combination 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 connm;- fiz6f( s shac6pm7ected in series across a 12.0-V battery. How much charge m;s if7(z fa6 hms-cp6is 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 connected in h;n*u 0zm31dtiedcz*5w )awiseries across a 12.0-V battery. What is the potentiia;h*wwc 3z e5z)nu01*idtd mal 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 5sg7w+ zz5skv are connected in series across a 3.0-V battery. Wz5 +kw7szs 5vghat is 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:wr( z k.cm1ll,wlp-b capacitor are connected in series across a 3.0-V battery. What- bw:kzl(l r1pcwlm. , is the voltage across the 2.0-mF capacitor?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1.0 mF, 2.0 mF, and 3.0 mF capacitors are connected in parahj kwhgu 1sh c:y -pfp7+il)7.llel across a 24-V battery. How much energy is stored in this combinatioiyh7kcj. hs:p 7 wpl-fug+1)h n 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 parallel, a gn fb344fj6/vw1a7loq/+iigsj*m od nd this pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitance of this1/o3 76d4 *+4vw ngmjqaibjflg/ ois f 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 in4ih2uo(oou7j lzwx;( parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the;2o liu( 7(zwxuoh4j o 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. Tzi8- +c x9wimh:msmu:7u bx0q he combination is then connected in series with a 12.0-V battery and a 14.0- suuimwz: h 7xc9i+-bm:mx q08mF 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 and3w hm57)x eemr 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 capacitor. What is the voltage across the 6.00-mF capacixrwee7m5 hm3 )tor?

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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 throughkwxs2 x u:kn4 :cfp9a+b4,,zvdnrr: e 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 the cau c(5 ,z*rbo9nlhl0n 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 cp k*q27t beh7dc9nj8 i (plb*oonnected in series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the change in voltage between t = dopbq7l2b*h(ntp 8ej7k*c 9i $RC$ 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 isc r8s7 z+*6b+3ch,)kl c)1fhr whfqqmmx sz 8g then connected in series with a 3.0wx smmlf1,hrkr bzs3qf+*7z6c+) 8hq hccg)8 $M\Omega$ 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 a9 ,sl0 re;v*1,c*cxtzw gpp ztn internal 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 a9.5hfp+p 0(,pk: ugsntc 1 aq1s:sw a(u efnuq 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 interpsds wy6ijz j07ps ;/-nal 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 a co f,;hlvg cx;.vze* im2il 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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