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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 currho*wb3ho2p,t33:pif qju 8 auent flows to an external chw2a tu, j83 bq 3fp3uoop:*hiircuit, 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 tet ib;nzlvb e o(..ip2:rminals of a battery, when current flows to an external circuit, is referred. n l:oi.bivt2b ;(ezp 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 s k ud*5kag)+vieries 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 io: ,ljhqcge3 by (7b3series,

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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 seriesed+2nt0r .ejr bamj03 to a battery. If the current of 12 A flows from the battery, how3r+ e0 jabter2dm0j .n 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 are connected in series to a 12-V batt3b88h( r4x 7o ( njky:wat4wmlniwyd2ery. What is the voltage across any one of the resis(3m jxr2 nol8iy wk hwd8bw4a4(nty 7:tors?

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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 jrzqp 5x9 v62i77onlf voltage source, the power suppv92oq7nlj67ri5 pz xflied by the source

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors army2vtrm5 a8q)+10w8u seyws te connected in parallel to a battery,

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected in parallel, we can be certain9*/i osldhtxfir )e9v4tgy00 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 parallelv:.*y:dil 13 o zirw4czrwr5r to a 12-V battery. What is cr53 ylriwoi*.rz:r1vw: z d4the 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 arfei6 ,eqjiw1k0w-cz3wda s ( 6e connected in parallel to a battery. If the current of 12 A flows fr ij faq0(,1 d6weeic ksw3z-6wom 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 :)ivl,j*qjfw 4x 6be2uj+ oqf of Christmas tree lights are connected in parallel. What happens if one lamp burns out? (Assume negligible resisf,lubjj) xwv6:q 2qj + ofei4*tance 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 constant voltage source, thejo60cb+n*c l fk +9bmo power supplied by the sourcem9c okl0++ obnf b*jc6

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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 ma*r nl-r zbsd3*z)yv0 g+4ogetnwv x1.ximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected in parallel with these two. What is the maximum power the y vnsgvwg *0l3 .*zzbro+)-d1n xt4ris 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 juncjd6m6n1.z tw (am u6vvtion 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 ru )e-;rldwzwdrpb.8 9gle.
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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 of wkgk4t,qpc n s2b8f9 ctnb8kd:34)tx

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's junction r6 y no)yid02bsule 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 the cil g ;lyfu2k51 ehok.ag785fl srcuit 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 s i/esjmi,lic k8;s2 0storage batteries together in series ("+" to "-" to "+" to "-"), and place them in a c e;k0c 2s8,js /imisliircuit, 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 togethe w vq4nw3mzc*7qa 7y6.y ;ibqkr in series ("+" to "-" to "- .y4 czq;6kmqbw 7a y*niw7q3v" to "+"), and place them in a circuit, the combination will provide

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together in parallel, and plandg -8qwg,zo)-h2 fv sce them in a circuit, the combinatiohg2fg 8 ond)w-q,zvs -n 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 capacitors2-o1dgf0 8cfwb,s 7pvo) aqiv are connected in series to a battery,

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are connected in series, th(akzj+nk m.ft4f i2c :e equivalent capacitance of the combination+k.fmf :2z ( njtakic4 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 +po:in bd;2ld in series to a battery. If a total charge of Q flows from the battery, how much charge do;bpi: n+d2od les 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 arzu6 - qmk0kzw(e connected 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 capy 6(a* ukm;lrzacitance of the combination incrz(*l ; y6rmuakeases.

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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 l* m wl8;878uczphz qjterg+k/r n3gf , s6(ldparallel to a battery. If a total charge of Q flows from the battery, dhw8pgjrure(38z ; ,m znls gl/*ctkl8+6fq7how 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 qu hx5/m0rn+ bijt i,ujt)74o hxantity 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 cap1vkp oq2m 1ln-za(zt. acitor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made withmlatn.1-zpz k vq1(o 2 the 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 batkzm99 3ya2 z/s zmwzk8tery of constant terminal voltage. At the moment contacwkz8y m9zm9 s/3k2zzat is made with the battery, the voltage across the resistor is

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are c(m bza 7-ftj9a .5gf47ly:clg woatr9 onnected in series to an ideal battery of constant terminal voltage. Whenoc z7r 9g. f 4y 7j-fa9:5(btalwlmagt 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 shot;1.iecn6br irfy5dc l1 x j9,uld

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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 ammeter648y 5az euzax 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 obtaydli wf(z-, *rined by properly placing an ammeter in a circuit consistingrwfy(zd-l , i* 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 resistan4 i+z3 +p8oqhxpkq,at ce 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 voltmet o utkx p3pov,/:x7v1ner 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 voltmeter's saqe7xxbnby97k(5d7kchw b 8b*v0 v) m eries 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 plujx n+ 3w yi7--9-rcvv8kcaslacing a voltmeter across a resistor. What happens to the total current flowing in the circcanuwk-- rsvil78- x3vcjy 9 +uit 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 voltmeter is pdl+1. t;wc t fy,eodu(fa i6m,laced in parallel across both the resistor and the ammeter. This network is then placed across a battery. If one computes the value of the resistance by dividing the voltmetet+.ou( cfytd a1; 6,i,mldwefr 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 aan+mgipn4b)*-3f(, tj y kxrsmmeter, and a voltmeter is placed in parallel across the resistor only. This network is then connect 34x +kntif,yn)jgr(*-a psbm ed 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,bq8jv q 5,rr*hu(m.fj 3.0, 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, 12, and(d8x nliglcur.5xo,:phh;5t . bkr . h 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.*,u n-u4g xp7lxmz rg,a*d7yy0 $\Omega$ 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 q1u cyjm).*eiof 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 ek27dpe,1f o sg to*p/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 inbj.mm. /)a8: gk2fltsk p:cjqto 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 x 3a26pqyymitc ,q 63lcombination 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 combinati kcbc1r hg:04re,oqk* on 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: 1 4jk 424m(8w9gfs0 hucxiagpm200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same timmw0gk9 p smia4cguf 44x j2h(8e 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 lightw v86ttv+ sreqq, 5s10zko3g+k nbgs6 bulbs you can connect in parallel in a 120-V circuit without trippbg+6k51qr+ gqw3sst,0es6 vkn ot8vzing 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 2.0apd g ,9wb0acgjde,t l/( 5x-a $\Omega$ 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 auzp; 4/gs::p qbaxn,c nd 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):n7u z jqn2 t)mihf6.tha43s fulg0d 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 ;zu:bun( mh7dfo jr;;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 5.0 and 9.,*qtz dhy1rl1g mp0( t0 $\Omega$ 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 anxk (s f.18uqeed 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 9.0 $\Omega$ resistor?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.0 $\Omega$ resistor is connected in parallel with a 6.0 $\Omega$ resistor. This combination is connected in series with a 4.0 $\Omega$ resistor. The resistors are connected to a 12-volt battery. How much power is dissipated in the 3.0 $\Omega$ resistor?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total resistance of the circuit in Fig+egxkl-hg 7x2j6tw d,. 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 through0x, 6 tcb7 e9oj)t9nafvq xo ,dxiy*e( $R_2$, 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 *cj l)-tljlabgxcy1ux 79g02 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 currensyvb8 z 5e qqf7fsw:, wp1-c3it in the 1 $\Omega$ resistor.


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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determine the current in th zt*8h1ckqn)maww 3i0q(zhd6e 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, determinv- rf6g b; 5j/qaju:*o z1ilxz4gc.h4j+lv wwe 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 to point C in Fig. rw6yf:px 5n/ uh9rl)e19-5?


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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 point C in Fig. .h6bfymu- 6km 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 poitvufv) 4vvh4u; d9 -c qwnk .s9dai3e(nt 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 o 4upw.mh 7vd 8g5(mcyin 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 poirtqk7o u x6xf,u9; at;nt 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 1i .* lmvsf::/drjtps $\Omega$ 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 r-s9 .w + qojnpywd/7ppyv4b *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 4 ,eufbxg.:* ;uu i g/ih$\Omega$ 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; b+8 wfgvp;/mxxg(sk 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 thnp2h788u)wk ds kcf/ qe 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 lev8nvek1dkd9; ft cov9 8k;nk e1vddrners?

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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.nv2e(o8 gge20vdc -t( *hidyx The equivalent capacitance of this c(og0gy d(h8x - *22nedtcve ivombination 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 areu r08 ;3 or3gz:xdg2 bx9 erivsiw-ud) connected in series across a 12.0-V battery. How much charge is stored in the 5.00-mF c0vg 2o8bxwe)drzr :is u urid;3-3xg9apacitor?

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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 50.0bd1lkar* *vf54c:jl o mF capacitors are connected in series across a 12.0-V battery. What is the potential difference across the *a1fo:bk j r*4lvc5dl 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 seriesm74a v q+ji:pu across a 3.0-V battery. u+j4m: i7qpva What 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 capacik)-zo7wi/ evl 96dcbpwrd*2 (rh *gnjtor are connected in series across a 3.0-V battery. What is the voltage across the 2.0-mF capacitlz79 kjg wbrdw/6 hi*c-ep) (dv*nro 2or?

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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 h ssr ,nnh3r)jvm9m8 0mF capacitors are connected in parallel across a 24-V battery. How much energy is stored in this combination when the capacitorr rmn,9nsh3hvsj 8m 0)s 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 th66gipkg( l 6 xb0btr29mv r.dcc 2(wakis pair is then connected in series with a 30-mF capacitor. What is the equivalent capa9pc2l b62d0k(grm.( 6arkt6icxb gv wcitance 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 conne.y ) d;0stb8tz 0pm4 kuezlr:vcted in parallel. The combination is then const;e u)zz8r yd0mv.ktp4l:0 bnected 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.sq;yd oq88l .gez q56n00 mF are connected in parallel. The combination is then connected in series with a 1gq6; yn d5os88.qz qel2.0-V battery and a 14.0-mF capacitor. What is the charge on the 6.00-mF capacitor?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 m675coyze: c 0*y/s vptzjol- fF 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 v0zc:ye67-*pzot/ y lf o5jsccapacitor?

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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 througuq u8g7;w5g /vy-lbra h a 50 $k\Omega$ resistor. How long does it take for the capacitor to reach 90% of full charge?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged to 12 V and then discharged through a xacfs3 m;,b :t2r/y gz$4.0 \times 10^{6} \; \Omega$ 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 connecte ,6fsbjfctt4zz + mi7u9hyq. mx.*r t1d in series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by+f s9mt.zu,x hjmz bc.tqit f16*4y7 r 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.7 2ad00jas*f t 4kgolmkf2i: k It is then connected in series with a 3.0 k*a4klko:smdj0 2f70 f i 2atg$M\Omega$ 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 resistance of 100od-re6zc 9c z0 $\Omega$ 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 -l-o +5uy25fg9ri vqp k*gtjwcoil 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 resistance of +oo gw)xtz53b 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 *v*9/,m +uxd x djajssof 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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