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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 tecloz,5gpc/yq49k ) lhrminals of a battery, when no current flows to an extelhq 5cpk c/zy4g,l)o 9rnal 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 between the terminals of tshdi3-p.* qd a battery, when current flows to an external circuit, is re ipsh* -.3ddqtferred 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 gbzc:ul rdfu4z3c. qz2 z+ i-/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 conne 0 ing:3b 8,xallhnoz1cted 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. If tiku(u0 ny70 ux*86tr mkotaot:p-1m s he current of 12 A flows from the battery, howyauok m t17uni60r m o*:ktx0-u(8t ps 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 con 7f mouz xiig(dwysej0 t/48)+nected in series to a 12-V battery. What is the voltage across any one of the resistors?7sifmzg)wu 8oe 0x+ yj/4 (itd

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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, thtbgkay exkc)o/d:b 7qmr2e/92 3 owb7e power sup xb:mwb79a /eck2ketoq/3 2y grb)d7oplied 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 are connectedm; o ll t4em1eah l:ki,0yna50 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 certi/ azgg:aq+q+ aqx:7k) fdpi0ain 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. Wh3769aovrviwzul * bp5fg40xhat is theol x4 i7ba*uwz30rp5 vv 6hgf9 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 resih)zuvx7 un; .qstors are connected in parallel to a battery. If the current of 12 A flows from the battery, how much current flows thro qh xu;.z7)vnuugh 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 tb+;+ m rnejcvw8(:aktree lights are connected in parallel. What happens if one lamp burns out? (Assume negligible resistanceam:r+cw(8jk+e vn;t b 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 paralln)-6xi y3 y9jkmauw2 iel to a constant voltage source, the power suppli- ny23k)yu j 9mxii6awed 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, ea /a.mgp*m7sp;n: n vvit/ox7lch of resistance R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected in parallelnoa v 7ml m7p/tsn/g:x*;.p vi 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 rq0 ahre+ifi l h43xs/2ule.
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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 rh:)kds kd5-ja 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 example or*xvfs9) p *(o:/qy l.b;xasyb bk *qhf

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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 idn6hsay36ca)p,*ywa;y:g j z iu8w 0ws 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 fs;s(,z5gey rc5 ,ntiy3j,m oosf r 7,uor 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 r9l*f hfzsvi + wx50j*u41mn tseries ("+" to "-" to "+ s5nf hmvifj9r0lx*u 1z4 wt*+" 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 snc*j+esccyh-k k8nl0 065o cyv/ (eqg eries ("+" to "-" to "-" to "+"), and place them cgk qhc /jyo(*cn5n6 0ec0lkv8se- y +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 b7kf g8vgzb;k 5dh3r n1a7vxs1atteries together in parallel, and place them in a a 8dgkz5hbx;7g 1 vrfvk1 73sncircuit, 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 bat+bueb:wd/y7 s0w k2nkqh 6xy/,k cd1ytery,

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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 equiv bb)bvk17mv3 ngp;et(5n o/ql alent capacitance of the combination oq3/b5mv)gp;kbnev t1l( 7 n bincreases.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors arg 8l vx b3pr8lile1l8nbpsg8; ohx570 e connected in series to a battery. If a total charge of Q flows from the battery, how much charge does each capa8nsv eorgb1l p78i8 xhlpxg3l058bl ;citor 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 h,1dfnf x52 odxks*x2a 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 capacitorry+ayn s 46s3,p2qnurs are connected in parallel, the equivalent capacitance of the combin,y4ru+q6 s nsyn3 ra2pation 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. If a total eb9 kau1e.;mp adzdd+.uem35 charge of Q flows from the battery, how much charge does each capacitor carry?pkdu 1 .+.ad9uebeem dz53ma ;

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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 7 sibymxbgvpby+*7.+wd lnfk) ) mq*2 quantity 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 capac2x :/pw8o(* aeq8rzp t svpny.itor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is madey qx2a.8 s/wp*p8:o pznrtev( with 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 amwt7 6q( :mi;wof.wt7i wyjl*re connected in series to an ideal battery of constant terminal voltage. At the moment contact ii67 f *q.mw(t;7wjlyw:wmi tos 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 connected in series to an ideas/ z00z 9h(-p;m9cq07kge bev gq ygpul battery of constant terminal vop 7p g q9e-b0zzsvy;gkc/9qemu 0g(0hltage. 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 sho ,wbj3yc5epmw:jf7u xxor.o3 07 iu2 huld

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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 conj-rjc *p;48hvylh ; ltverted to an ammeter 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 by properly placing an ammeter v ( .-xyc*iyktk8j +1h/masolin a circuit consisting of one resistor and one bh.s(cv*yl-jxktm+ oi/81k ayattery. 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 resist7)nfnzl(lrh1d * z*otance

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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 normallkpt 7*z,ai a:ty 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 series re5-h2)) awge)04 rq y fxmwxyuasistance

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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-ew : qv+x07hjcv/rio by placing a voltmeter across a resistor. What happens to the total current flowing in the circuit as a result of this actiovwi:xo7eq h0-/cr j +vn?

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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 wi;bqpe/q ;qst.th an ammeter, and a voltmeter 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 by dividing the voltmetes bpt/.q;q ;qer 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 6450 p 3trp(r, rmoc3lhuwqse in series with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected06wsrco 3rtmq4u3l, p hr5p( e 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, 3s 5ku snxmf)().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, z ;d zw9)fsw6aand 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 1pzpr18o x5 1sw/ , vzdu5zfc6i 6l6xhj2, 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 a 3.0 r(pv1kc rwi7*kr7hrf/fy ; * z$\Omega$ 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 an2:yolu0pk 4a 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 parallel combinatiozz oavdao3 p ,t60-rb5n 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 combina chbd7p*w kev(plx ptfv2.3b k7q-t405wo)c vtion 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 l, p4annlv 4x.chfr/)2/ rkyua parallel 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 appliances are connected to a 120-V circy5ys-avi sj3fw k3g 8d,9kcb6uit: 1200-W toaster, 650-W coffee pot, anyisf 9s- 3 ,wkva6853dcjg kybd 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 light bulb * ivhj3;:c(0ae9uvh. j/s5fa erwkeks you can connect in parallel in a 120-V circuit without tripping a 20-A cirv eukwvacf* eihe (5;j03r/hj :9 ks.acuit 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 + 9ec,zb.ovfo$\Omega$ 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 atf+m/j/: n ehend 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 10.0 3pg5jw w-(g79gkxxn b $\Omega$ are connected in parallel. If the combination is connected in series with a 12.0-V battery and a 2.0 $\Omega$ resistor, what is the current through the 10.0 $\Omega$ resistor?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 and 9.9o si8nmd b) 0)gjs9pt0 $\Omega$ 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 *dbu ht):.otdd g/bo+ 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 u)raekl x-:1.hp9i 21 trv vur9.0 $\Omega$ 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 th8pczi99f.er )k9i kt9zslw+1gbe,ez e 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 through0 +1orm*0vgccz hin/ j $R_2$, 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 resistancxtyvf ou+4.b* /kmclfd(:/ c ae 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 the mhg4x n p:)yb.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 the c2 3 f1qvnz2oklxfv y9)urrent 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 thek07u t(0 l:doxqn5p gs 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 Fig9mzpslh 960 alvd 6to.. 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 rebwjwpsj( 40a(lative 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 C in Fig. 3w :6a,ej:)v k vr8uyp au;mzd19-5?


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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 Fi)k - lx2 3p zikjr sr1-:g:wz:f-irdbhg. 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 potentiadw pbx6d 1c;k)l drop from point A to point B in Fig. 19-5?


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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 7 0luf wer-.1e t$\Omega$ 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)sci*gkp*5y scvs6 ov .l hz-3 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 40i3fgq q n6x/e $\Omega$ 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 12 /n+z,3waz b hb$\Omega$ 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 )ah eric, ,saykwhs7)b hp8it)e9 l,4 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 6sytdx fpf4t4a /)ut-solid wire connecting the upper left and lower left corners?ft4/)ayp-t fu6st x4d

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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 lpvn.64fqxk0oa2zn5 in series. The equivalent capacitance of this combi.o54kpn fq2 vl6xa 0nznation 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 a 2 ati4c:jqfk8cross a 12.0-V battery. How much charge is stored i: f4qctj 2iak8n 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 across a 12vf ow// 16tvpu.0-V battery. What is the potential difference across the 10.0-mF cap/up16/ftwov v acitor?

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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-V battery+v 6/ktq wejflpcc 61ds) 7(ik. Wha6p v1f/(7jd+lscw)6 kqkeitct 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 capacitor are connected in series across 5o;th -8:icmm 4igwhed4; 8fsglw( z4*qdxes a 3.0-V battery. What is the voltage ace54d*zm84:f;-x qiwc hmgs;gwi8 4t l(hedosross 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 parallel a* -rjk;mk*6ji*hl (69xum9 kenb jrlqcross a 24-V battery. How much energy is stored in this combination when the capacitors are **k9l6 xh6mn u*kj ;(lk- r imjejrbq9fully 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 this pair is th3l*-7w gab pz0 okao3ben connectezpbab0w3g lo 7-oak*3 d in series 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 in parallel. The combinaticcioi))bi 6p.*gxnr 0 on ii.*xci)6b) icn0og rps then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent capacitance?

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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF arkijupk16.i zlpov0zgc.: ; f +e connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capac 0 u:kk.j ;cvgfzio.1p6ipl+zitor. 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 6.00p+zr/ 7r l ;/ 9 p)zvqn;vhm5wfeonhx3 mF and 8.00 mF are connected in parallel. The combination is then connected ir w l/op)/9 ;e+5v7nhfhrx 3n;vmzqpzn series with a 12.0-V battery and 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 isah ;kqqlwq0 : (d;sr7s(h3hku charged through a 50 $k\Omega$ resistor. How long does it take for the capacitor to reach 90% of full charge?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged t4( s/7n8oylzczb,up v o 12 V and then 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 capacitor. The capacic( ./ plr:fdoplczvg 8jp*6 g+tor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the change in volta/z6 c*l gcpgdpvjpfr:o(. + l8ge 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 to38rk+zm -i*7.2r-pocv ctv dtkqvr 3b 6.0-V. It is then connected in series with a 3.0 8k-2qtr 7p *zd3i+br 3.ovtm -vccrkv$M\Omega$ 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 rell6yio.n f: *ysistance 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 rez)8sfije8r.- tu(ts r sistance 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 /- zhrepafgnnq 3 )rm 2z gexc02jv5j6c0 k6+zresistance 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 qq ,t v*gsp*b3c+p0zfd /tbh *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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