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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 current u6m6)x/ x: +tl wsoqdjflows to an external circuit, is referred to as thj lwxqsxd t6)+ /:6omue

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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 rm 4ig-ef)4qkx3,ske the terminals of a battery, when current flows to an external circuit, is referred to as th4frxkesmek4q ,)3i- ge

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected in series to a ,:+4bx ned tqf 8ofv.tb91egy 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 ineprb 6xa*8qwv;4b/ -q a6zvht 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 c,qr36nta 2 de3 y pl31lc7toxin series to a battery. If the current of 12 A flows from the bat cd 2acq3rtn3,l3l p 1oyx76ettery, how 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 batn n )re5 k/pnx5l4w;l.hcvdu- tery. What is the voltage across any one of the re;vlupw.l)- ndncexk 4r/n 5h5sistors?

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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 const8a 8h 7*dr+gczjygw9 tant voltage source, the power suwh9*ay c88drj+t g z7gpplied 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 connected in parallel to a ba oxpgx(a0* tfjb gm*0k5p9m5a-upt.gttery,

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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 c p.a +6v*kzcrin 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)sf*0wqz uza.dk.dxf d 28kl- parallel to a 12-V battery. What is the voltage of any one of the resistors)q. zlk2dkaw0sx .d ffuz* 8d-?

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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 parall8cxss4x 8, )4 kusosolel to a battery. If the current of ss4x8)4o slkusc ,x o812 A 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 in parallel. Whal6l:hpr.b 4g5a sat n;mq9uo.t happens if .a49ln;mrto. su p5a:ql6gb hone lamp burns out? (Assume negligible 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 consowcs6h(gvfwuq qe4 b ,cl+ +-5tant voltage source, the power suppliel-s q(4b 6 gvq+,co5fw e+cwhud 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 m5js/9 ray0)kpg1ax maaximum power each c /a0 )r5axj9aks1mg pyan 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 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 ruver w/ex -up4a. ,ycc*le.
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's looslxr6wr(y;vo1;pk/,: q izt wp rule.
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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 anh 21(5q worujxd t5m:j 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 exz + vok(a8l,fsl3r+ajample 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 cio wt01z7ce( qorcuit 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 ("+" to "-cvda9g 0 zx ;j;)ax8de" to "+" to "-"),9xjvexcg0)z ad8 ;d;a 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 togeh4yfpxgo 70, t0x0antther in series ("+" to "-" to "-" to "+"), and place them in a circuit, the combination willt,7t4hao0 x x0 fy0png 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 identii75 k m5)ruxj4o g ,lo;cchsn.cal storage batteries together in parallel, and place them in a circuit, tx .7uo5;,4mn o h5jsckr )ligche 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 c946.,xpxll xifm nnav )uu8s q6z8 4dbattery,

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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 capacita++p 4f ezrw4g7fu.kn2on s of(nce of the combination increas4+(gufs k 2 wrpzo7fn.4n+efoes.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitorfsa tf 9h:dccyo74w6 ;s are connected in series to a battery. If a total charge of Q flows from the battery, how much charge does each yctsod7fa 6c4w9hf ;: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 parallel2.h bmc2vf b47 i3; p,cgbguca:xvyd 2 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 capacitan z6i 8-2sikhskf,xtyq4+ ,unh ce of the combination increases4k+siituk,snz q8 h6 -2h f,xy.

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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 b do/n sd7nwb lv1i,-v0age73eattery. If a total charge of Q flows from the battery, how much charge does ea 73v/-bdgi 1 0sweno ,lvdn7each 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 theiwyjovup- w +ut3,/u/ 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 capacitor are o/20 hl5t9z/p6duvptm vbo6r connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage2/ltmhoto96v60u z 5pbrd p/ v 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 arzrjj 2 cbl+0pnd.)* nfe connected in series to an ideal battery of constant ter jfr*2.n0l)jdp z+bncminal voltage. At the moment contact 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 connectedur 3 zoyer )krm1j)9+j in series to an ideal battery of constant ty3)mkju+ rrr je z9o1)erminal voltage. 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 shoux. vrn5o o*i7vld

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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 thwohtv95,dy 7 ie 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 properlks dx42bkb+ k lr:.w;iy placing an ammeter in a circuit consisting of one resistor anbkkr2wk: l+s;ib.4 d xd 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 resistance of an ammetev w9a 1fcp+np:r'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 voltmeter from a galvanometer, *g 0y flw2fz3gone 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'xk)o jh/jj1f gs7h(1 qs 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 placing3) uechn4ejnjm;bmi ,e 1xa)+ a voltmeter across a resistor. What happens to the total c;jeeujm31ac4en))+mhb ix ,nurrent 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 :va8hww;ac b;y2s,cd 6qdsvg;- d yx d+h4- yeis wired in series with 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 voltmeter reading by the ammeter reading, the value obt y8e;d2c:hy -y gs ;q;vb4dsaw6d+wda -v,hx cained

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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 i; a4c muvfwm82n series with an ammeter, and a voltmeter is placed in parallel across th24um8v ;am cfwe resistor only. 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, m zz/s)6z:w)ew1ni7rq ys e.nand 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 1(n 5) 09ucy ufobqjjypy:ct*o /hpyl.u,7 o)w2, 12, 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,mgrn 7+5t( cxw 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 of83y +g9ymxl:wae /tdvv3 p 8ly 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 combination of a nv.; o-so70d ezusz32rc :v zt3.0 $\Omega$ 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 c /,uyfju w0p))s zd1uuombination 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 combin-pt4i d4bxp4zs388l1w oxu ih ation 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 parrx t y bupqv1z -got46*n-i/3vaq8v0sallel 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 appu /49paj,gp d 1e-hepxliances are connected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what totaldjp/aeeh 9gxu 1 4,-pp 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 nu m h0ebf;e2eshj/+.f hmber of 100-W light bulbs you can connect in parallel in a 120-V circuit without tripping a 20-A circuit break2 m shhf;ee.ehj f/b+0er?

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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 e5ac+m5r4p sk $\Omega$ 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 30gx .58sozvwk x:(yhms + rh(a( $\Omega$ 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,j5a, a7fma:rz 6.0, 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 afg muyi-j0-(l nd 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 9.0e*,: ,fn 4jrcn/bx.b az7a: n5tnkmxoffm+k5 $\Omega$ 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: )a h,gfdko7l.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 Fyabkyp+k d1;x8/ s7ckmvy-/b ig. 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 througqg2h1 1f jug+ ds7alj6ox17g ah $R_2$, 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 cc-ved0 6 nlxu5ircuit 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, determ+z1tvtal -jw21 sni (iine 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, determihlbr leu,+; gox +3d;l d7fss,ne 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 in ldf6;/vx7owlthe 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 ofk2;togqr2 pp: point A relative to point C in Fig. 19-5?


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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point B relatsbbb a- u rlxlu0,./;nive 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 rela ak9 7mc.anhgf1;d pa; 6/oqpqtive to point C in Fig. 19-5?


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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows from th-6mg a*rjw9,tgh,g gi et4yu+e battery 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 g8a ng7**hlnn l77c- fa.e xqjfrom 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 t3+bdglq-ox(.r bax *z qt*x n-he 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 yj c.(*xq3cm0vx7 sx -, dz) fts9nlfvin 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 ty4*, 5skchs8 2mxzq.rt a9kzphe 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 b;/v)w fd9qczins2 27eju8tj12 $\Omega$ 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 aawr)j:8(dv* iv a3cbthe 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 w;xc2s-w8i q3wmjymm9:brm 1qx 53pi qire connecting the upper left and lower left corners?3-si rimcbwm8 q mx;x23p51 wj:qym9q

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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 se d4g fxdy q48yq.,dq0qries. The equivalent capacitance of this cofdqgyqxqdq4 ,y0.4d8 mbination 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 conne .tewr chgfl );-)8k9vvenlv ; x/.cagcted in series across a 12.0-V battery. How much charge is storlv;.- lx/t ccwgv nhfg))rv;ea.e 89ked 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:t (.eedf t vwi4*r;d2vj a)cw 50.0 mF capacitors are connected in series across a 12.0-V 2 (ef; :vrd*cjw)i4t d w.etavbattery. What is the 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 3.0-V 9z2egk)78xnnrh5 z nl battery. What is theze5n 9x8hgnk7nrz l2 ) 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 -uh d7st/ xw 9qt8lwb4in series across a 3.0-V battery. What is the voltage across the 2.0-mF capacitow9s td/xw thlb u-7q48r?

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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 across a 24-or -/ogod( *w*i6o1kge efiq8V battery. How much energy is stored in this combo *idqkgg1/*ee( ow86rof- oiination 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, and tcgi3y5rw26/bh ) njlvnsa-b4 his pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitance vg2 hwl 4j ibbnan63 crsy/5-)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. + 7l+hrg*7zk;urt y x+runr)x The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. trrx7huy lur +7;r )gzk+n*x+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 connectjxdd,+a/( 6ht l 6dvkwed in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is th,wd k/lha+xv 6(t ddj6e 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 8pj *b0lag9h-x -;zmzp/by9 ml.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 acro xjh ;zb0m-p9p za /b*l9l-mygss 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 chargedq)d,d 52 gkuz0u -gzpv 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 to 12 V and then ,eml rs/3wk*hid(v 8ihaemi,2ce-b 5 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 bt2uabgc3 ui-/ ,u)ds capacitor. The capacitor is initiallys)2 cg duai/-bubu3t , uncharged. 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 thf 6e9l 8au8 y1 bq(l/1zxu2pjmz(ovxd en connected in series with a 3.0qd b1ja xu 2vl up/( ofzyxe9l861m8(z $M\Omega$ 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 v5b h,2hzkmd3 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 cv oquvvy1ih y) bv;z0e3,oa cw6-74ey oil 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 interna ,mvg;d5 suxv2l 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 resista l1rpoo+y0u8qm3r x4 b ),bwpwl 7dau6nce 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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