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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, wh f 3k:zc/5ccsken no current flows to an external circuit, is r /k zccfks:35ceferred 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 bet(,x(loukx m4q ween the terminals of a battery, when current flows to an external circuit, is refx (l4qkm,uo( xerred 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 si qfttvr i3yru/2vsg09 a :(b6eries 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 coz:sttcb 2r/2gisb( *znnected 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 battery. eimfxeqii ;;(7 , joy7If the current of 12 A flows from the battery, how much cuq y,e;o jim;7if(ei7xrrent 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 connezc0ms6y mu1-kcted in series to a 12-V battery. What is the voltage across any one of -yc 1ukm0szm6the 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 :waqt+cd6as)0o -r qr a constant voltage source, the power supplied by thw6caqrs0 o+:rqdt )-ae 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 ba y1nf5y:7 wyamnbg-h y (hrykknk( ,) t.0ah2mttery,

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are co8z5 v,utjv bu 2 prk,1men2(nmnnected 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 battery.14cw4f0y8jkk mtyj* /jz6kk b What is the voltage of any one of the resistc0/ b j4846wyktky m1*jkk jfzors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in parallel to a battery. If the currenx6zx1 zqc x3o6t of 12 A66c1 q3zxox xz flows 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 h vb*r30iyde3in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wy*bihr3d3e0 v ires 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 sour8gw/ h(8oyzqvzx9 ,8a : iqamkce, the power supplied by the souqx aog9 ih 8:zzav/y8, kwm(8qrce

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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 maip2pm-3m 7d2obqn5ds4t l3kmximum power each can dissipate is 7 p2d im3 nkd2l453mb opmqts-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 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 junction rur uz03( nsm9swzv2w1xle.
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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-96.ytlca wkn m77j *j8mkrmmac) l0ole.
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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 examplvk38j/d 9t 3u2f1exq0i veqjme 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 ay *5 ld+b9 pu-tf rqxczo2. 9f(rys(kvn 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 id(efja)y75,rmh 1 p/gs fkl-/:b w uqrs 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 serieb;rc61tz w+4 fa3uu m.q(k/a ineagr7 s ("+" to "-" to "+" to "-"), and place th(r1c+t 3zuui; mka/qref6 b4a a. w7gnem 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 cd:s d 77d 47lrm6rsme z( hs4f8qjo:ubatteries together in series ("+" to "-" to "-" to "+"), and p87hfd6dd 4 c:r74sqlu z ejs( 7o:rmmslace 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 identicah*4aprvul r -;l storage batteries together in parallel, and place them in a circuit, the combin *r vp;4arhul-ation 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 s ((auv yr9df3o nkhu/pbik6 7)eries 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 s 7nnwb e 0rmg,sx3:ksl+6l8boeries, the equivalent capacitance of the combinatio70ssom ek n8b6g:rwx3,ln l+ bn 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 serieslhkmb*9 3+i +ju+zp ww to a battery. If a total charge of Q flows from the battery, how much charge does each ca+ hb zl 3+um9+pw*kijwpacitor 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 bat kb )qm9cqzq4x/,l wisue4(( etery,

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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 i2 l.o-xjn2g lpn parallel, the equivalent capacitance of the combination increasenjl p2gl-.2 oxs.

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connected in parallel to a battery. If a wq/ph ,fo( rn*total charge of Q flon/pr, h w*oq(fws 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 qwh0- b6qew g6z.,b o wgywr38buantity 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 series to an ideal battery of 3 541sfsbuc (s;6)fn6k(id1cgq bwrez9vxa oconstant terminal voltage. At the moment contact is made with the battery, the volt )6a1os scbifk 6;wf e(vxg(bsz4cnr u9q13d5age 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 ;obn(t;y,y sato an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the v,ytan o( ;bys;oltage 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 o3,q5:i )lvc:r )vkbxj evqtlki5 j1/wf constant terminal voltage. When this sysc:irk5v)q13w,elt:) /v 5q vjibkxj l tem 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(ptl w7zg5ch mz0rg m5 o4duze-5o:(w

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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 addit l3rz- la9ew+xion of a

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A current reading is obtained by properly plarqkoe h)ca8zefw,sb5 (md:/ av::soz 5y)v8 c cing an ammeter in a circuit consisting of one resistor and one battery. As a /vdc s)yfzr8sm: ) 5a: a5b( ve8okcozwqeh:,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 res3ci5g4j qz3 k/0zop rtsbj5)yistance

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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 ayma8rk57i p)3 9oukcf 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 volt/*5sbp -bcz,czt+c jhmeter'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 pla(; qt)7fdr qppcing a voltmeter across a resistor. What happens to the tor7t; qfdpp) (qtal current 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 -l-t;u2zmc ;-d ptao tan ammeter, and a voltmeter is placed in parallel across both the resistor and the ammeter.tzocap 2u---;; tmlt d This network 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 an ammeter, and a voltmeter is y9/u gs2 sym(s -uc7amplaced in parallel across the resistor only. This network is then connected to a battery. If one computes the value of the resistance by dividing the voltmeter reading by thys7-s cy(u msum/9ag2 e 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 +xa7zt2m; a.k yrs lnwph)m7-.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, tf(s5bq u *o8o5zt g,qand 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 1bo 6 oirkti4umy6o*f4)1rh 2y2, 12, and 6.0 $\Omega$ are connected in parallel. A 12-V battery is connected to the combination. What is the current through the $6 \; \Omega$ resistor?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination of*h he awyz; vkk;8h8i6 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 as86-bux ebgw 9n40n q9rlkis h39c+b:p v;n rt 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 pari ),wie0z 0pznallel 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 combination of a 4.0 6(mvdisx ea7 m;(r5n n$\Omega$, 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 par0+(/.gdj;s0 pv,p uctus y hqvallel combination 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 applian 3 . lyv+fskodbd*maz ;a/l9s7ces are connected to a 120-V circuit: 1200-W toaster, 650-W coffee pot,+a*z slvd37o. dlyb/fm ;s9ka and 600-W microwave. If all were operated at the same time what total current would they draw?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the maximum number of 100-W ligh-kr f /bnu1n/tt bulbs you can connect in parallel in a 120-V circuit w/b/rn-n1kfu t ithout 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 2.0 9jcsjh9l/9 kan n;db($\Omega$ 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 angw0/oaaf ,oky4ml 7y5d 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, 6.0,2/y4k *wqg o0v:rdbjm 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 9t 2(m6s5 btpnd prayx7*3 h;yj.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 90dl4xkqdv 8 6yv 11xw/xb1dd pyd0z6l.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 ,en 3z;k+ jzzu h4hr9slyv89t.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 circur :gg(m9ebi*nit 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 throughv2m(1ty gpm/)7, s lkhrogd7h $R_2$, 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 Fii;obr9 l3anp / ,98vyzenv:hcg. 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, deterashr3qzh/5xi1.qnk b r, lfx3.x6sc4 mine 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, determiner v+xmvuj,;v 0(sh0s9:xpsp m 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, co*rd/onp/ 6hdetermine 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 Cgjr g0f75v3zhs 1;ue b 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 point C in Fig. 19-5h39+ 8/z m6kxz9b. iahkzvljl ?


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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)s irojrr5(7k h :0oz2(wlhsi 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 Fig. 19-5?lpo++gx8 ib3u)id e0gpvh(l 8:ph0lj


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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 A to point B in Fighg/vc dw;* gy0. 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 tc r5.812 etxxiar lx)zhe 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 gn r xf2xpw) 4+hl*b;lin 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 if k r+m3;nddsy;yvifzm, 77e;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 the bz)9btnchv0du d5q17 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 ai30/mg v9xmt the 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 s65h:az/bne)c a1vkd xi;5xn g 44oa jiolid wire connecting the upper left and lower left corn n)55ogda x ah4 :; i1nkz/xe64vibcajers?

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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 aredjsu z 2+8/fjx connected in series. The equivalent capacitance of this cof +2u/js 8jzdxmbination 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 armh7xo pmt.u.b,ln6 ub tb6ikq+((jl 5e connected in series across a 12.0-V battery. How much charge isn7pqm x6i j mb,.t(( lolbuhbku6+5.t 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 series acr9gjt5 ms k axxtkq x:n0+/u/u)gwk3a6 oss a 12.0-V battery. What is thktuwsmx n g jq3)g ktk/a569: /x0axu+e potential difference across the 10.0-mF capacitor?

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacitor are connected in series across a 3.cvk6 zk 5l)gi70-V battery. What is the voltage across ilc57v)6k zgkthe 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 series across a 3.0 2* y8pt) p c*z:be:ts8fpc b fnri(x(.f;hgex-V battery. Whatetcehp ;: x 8ir8*bc(p s t:fp2g*(z)n.xf byf 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;y71y5l ns4lm5 q kegp connected in parallel across a 24-V battery. How much energy is storelylnsp515 kemq47y ; gd in this combination 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 (buw8bcw 2xb 12mghi4u2t (r97v yqfh are connected in parallel, and this pair is then connected in ser2b(w 7mq9ubh4f1 v g2c2birxyhutw( 8 ies with a 30-mF capacitor. What is the equivalent capacitance of this arrangement?

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92#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connected(6;4gp(gfoeuhrwxf 0 p nsi7. in parallel. The combination is then connected in se.snxuf( po4( h76gp;ie0gw rfries 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. Tc7 0o)xz42-i o vjieubb3k2 nahe combination is thenb2xb4zno3c kv e7u)iioj0a2 - connected in series with a 12.0-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 mF i o6ni 3 :qk.qr+ n1y,tbbawbg) lov.k(k5a9aare connected in parallel. The combination is then connected in series with a 12.0-V battery and kv(ny.boi9.k l qt3w1a na iqab+5:o rbgk 6),a 14.0-mF capacitor. What is the voltage across the 6.00-mF capacitor?

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95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged through a 5nda:zr1j os4m+ecn v /*b/n9q 0 $k\Omega$ 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 thrhqo6vj3efvmc87r nv gh4b3ahofi3 )0 s;3af) ough a $4.0 \times 10^{6} \; \Omega$ resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-MW resistor is connected in series with a 0.50-mF capacitor. The capac cf5hmez7nd,- (lb8 inkd1* odlzhfl1 t+s f:0itor is initially uncha ,l fn5 f:o1b7mdlze +8*dc( ktsh-lfhdinz10rged. 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 thrnu pydri02lw4)4hu i d15m ,ven connected in series with a 3.00m421ddih ulwrn u y) i4rv5,p $M\Omega$ 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 r8-1 mrrlxsts7b8n 8dnternal 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 witp vpdt +yj h,djc9:/b*h 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 an8d y7fo8acdqxn0kc 7l)a: :mz 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 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 resis00 toj:dem:mx+yw0 evtance 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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