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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 tex kj2d+ds(+w btyu8v)rminals of a battery, when no current flows to an external circuitdty+)xjkdw 2 vu+(bs8 , 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 a battery, when current fle ;qurddk s)p do kd:r8 s;yo/8uwb3-8ows to an external circuit, is refe8q)dd;;odwye-:3kk ou/ 8 p srr8bsdurred 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 to 4w55op9 yo xaha 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 series,c6ypo*kfp7 c0

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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 the c(.9xt w+e- qs( a6qjw9cick(zi.kkqo urrent of 12 A flows from the batqo9kaewkc z q.i-(q6ics 9(xk.w (j t+tery, 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/t,k9)um bwl kupj x5g*cj)e- connected in series to a 12-V battery. What is the voltage amkxg l- t), u9juwkjc*b/e5p) cross any one of the resistors?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You obtain a 100 $\Omega$ light bulb and a 50 $\Omega$ light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. Which statement is correct?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in series to a constant voltage soul/ ,z 98tc2p ni*tsqjurce, the power supplie 9iut*tl2cj q,8 nspz/d 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 con*xwrvx7 kj9;35+- hz xxxs. pj4pvtw vnected 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 cqs*4u(v- vt4o:a tq cx/v7go yonnected 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 iy9 vhqv 00;raen parallel to a 12-V battery. What is the vorv9 ;e 0hayvq0ltage 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 are connected in parallel to :x-tij i*na( ra battery. If the current of 12 A flows from the battery, how much current flows through any one of then-xa tr:i(ji* 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 Chriuw:dza - tn;6 y1nsue.stmas tree lights are connected in parallel. What hapn.1e twnu;a 6d-:y suzpens if one 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 para vf9-hmw-lxi5 f7vhea3u/ ,mvo;vard 0e*pk 7llel to a constant voltage source, the power supplied bwp--f*i/ 7k;auv7h a,ov9 xvf eml d3 r0mvh5ey the source

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identical resistors, each of resistance R. The maximum power3vm y y oa+e7y4ln;sw, 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 maximl +s ywy,3oa;mnevy47um 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 juk(. . ta9mtujgnction 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 (b6ox08 i *vcjswkz*j 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 an example 83b a l:fzzk;cof

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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 example ofgqj o05xl qtqo/z;e;2pq /cv2

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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 iplw-ps 1v26d) * onkzy5v-lwvalid 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 t paoz/- nlm0-8iyqm -rogether in series ("+" to "-" to "+" to "-nam-/0 8 -yrlm- pzoqi"), 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 ag y8ia)jzju3p aa g+ .o4zm+6series ("+" to "-" to "-" tzgi83+gaaaau z jm4 +)6.yopjo "+"), 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 place hnft 6c;mz5y)4y(kzj them in a circuit, the 6thz5 4 (fnyyzk);jcmcombination 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 capacitorcy1dit55g h7xs 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, lv 7k2+row0u ethe equivalent capacitance of the combinatieo 2 7rluk+0vwon 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 connp91okl zso--qected in series to a battery. If a total charge of Q flows from the battery, how much charge does each capack 9-zlosq- p1oitor 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 pa+ew q-ic1tp*pzzdigx h*-rz *7 -1 hfurallel 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 equivalvcyo s2t:8*onent capacitance of the combination increan:2o s8t*voyc ses.

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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 todsynv5div ,t 8u2xnto-p11x0 a battery. If a total charge of Q f2- s5tnd oxipdx10vt,nv u1y8lows 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 nxak .cezx/88 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 capteycen9x2 uu+1u6urr.2bp0;l* ru tc acitor are connected in series to an ideal battery of constant terminal voltage. At the momerylt nb69epe2xuu02 . cu*+cut ;rru 1nt contact is made 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 are connected in s 6owr5db+3oau1 o3clg eries to an ideal battery of constan u3 oolar6wc 5db+o1g3t terminal 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 connected in series to an ideal batter hy 0dtmd82 p.1hv47ai mgbs4fy of constant terminal voltage. When this system reaches its steady-state, the voltage acrmyha8v bdmhgdp7t241f4 i .s 0oss 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 shoul2 bv tuwf w+sduvl--+4d

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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 a3 5vz dfwoytw/ f+tjwb( sc4vy73, y*eddition 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 obtax8lwwlv.0 2f -tcr 6peined by properly placing an ammeter in a circuit consisting of one resistor and one battery. As a resull0 x2t e-vp.6wwf8lc rt,

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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 jp5ndaegut7 9 8v 138s-watc7cwpv5oresistance

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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 gala)/jvbnc ct4-) - 2c8g -8grwx+tsarugmprm/vanometer, 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 voltmhx;/k*bo ;iptvy e 79 :non7n5ajyr ( )kxidu9eter's series resistance

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A voltage reading is obtained by placing a voltmeter across a resistor. qo,4g4, *-i x0ox2le0mui ygjix8 bel What happens to the total currentem8egu0q4 ol i4gyb0lo,ij* x-ix,x 2 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 wirdw5)fs / m6ssxed 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 resistm5xsss)f d /w6ance 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 wiredwbb 7nxy2(:5e pg*1fh b8/ xnt 1;g zewaat5cb in series with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. I5;xh1bttexb yg5aw *8nn/z2p:1gcb7 w a(b f ef 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.o4aucd6:vpaar/o +) i0, 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 6fz;omq,ki0lp w0 q - /c+zad-s.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 1zkgw2s9az 35 p2, 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 9:1u366 g hgveq ojrlv+i2cgk combination of a 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 4.0 $\Omega$ resistor?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination k06t3cfjc h+qnlyi 5 :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 i7fbbw31 ,75zt f hq:njtyl*sf7z g1er nto 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 i 4aoh9 t0r ihoj,q-q.n yuaj8 +o,5fpjnto a parallel combination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 6.0 $\Omega$ resistor?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows intoin) hhl b is(kt3tm4.( a 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 ,tx3j efv,urabj qx*m xdlq 4-1/*k0h connected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same1* r,0v,jf kxq-3je*htmxa4u b l/d qx 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 bulbs you cankh:i bv 1 we-)1ukgl8gw77egcz qr 1x3o93crf connect in parallel in a 120-V circuit without trippi:w3ki eloc7g71f)g hb ev3 ucxg81r1-z9qrw kng 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 jyr h/v: 2 nk-8ijajx6$\Omega$ 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 96(y wbjg69pj6ngha.1dnkee and 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.c. q38efrxp j 55av3kt0 $\Omega$ 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 9.0-c((rwwl m*ts3zs2 muhh o1nie+pd11k0 /zyy $\Omega$ 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 9.0/a80vh -xmn i);w07pth h8 a3jkw stld $\Omega$ 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 andt/4f xn:t 8 wo0-vcplj 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 ind 2r n6,m*i1k9z/z9zz mj yzci 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 througjo6d-)x5d q/xm l6wi dh $R_2$, 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 resisi3*hadqkc3izaq ;,i37xi zxvc)e2 k/ tance 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,y)s-bz +p;shgr)lxk1 /)g jqf determine 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-in/ o / /sa+.vmqo8x2blaazr14, determine 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 mloh9b6livz g5yt4b-23a ww6 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 a*7k6 sew. kep)o) 3x; sbavnwpoint 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 zzmp wio )i7**+ ns(darelative 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 relm cftfh 8ceim9s5 9h/-ative 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 f:) l53 ti5xmfyx tvtm:rom the 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 from point A to point B i4wezq/eu5i q-:av x) on 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 7l*pyvtc0 w7 p 2 jagl;0x0r(dx $\Omega$ 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 izt / xef 3b-car ekmb )cf3sa4+7)9endrw*0wln 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 4xrkkcl:/b :.sm/mk 8 g $\Omega$ 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 tx 06ahngr a2, l4f:qgrrv0ps4 he 12 $\Omega$ resistor in Fig. 19-7?


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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the 18msmb: vk8-3 a vxy0(p+m(t;semc :nli $\Omega$ 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 st90 iab4t uz0qolid wire connecting the upper left and lower left cornersa0 utz0bi4qt9 ?

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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 serie) a7p7. *auq c-czz9yikqhip1(su o+h s. The equivalent capacitance of this combin qophhz +k.u 7cu-s*aa z9q(17 ipi)ycation 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 acro ekqr pa,wh;k2+k vx)0ss a 12.0-V battery. How much charge is stored in the 5.00-mF capacitor+)rkwpv,aeh2xkq k0; ?

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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 seri. -vmio /llx7pes across a 12.0-V battery. What is x ov p7.l/m-ilthe 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-mm5js6,on/ 56 booznfl0k t(wr F capacitor are connected in series across a 3.0-V battery. What /5sw( o6 nbro ok6,mjtnfz 0l5is 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 capacm:5 bj)xfu q4sitor are connected in series across a 3.0-V battery. What is the voltage across the 2.0-mF capacito bxs4mf)qju 5:r?

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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 ay5)p:g3 gdho a 24-V battery. How much energy is stored in this combination when the capacitors are oay5)3hd :gp gfully 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 i8cihjje 7x;qe h+0 b+ +iratr0pmau30s then connected in series with a 30-mF capacitor. What is the equhcrr b;3 j a pqiu0i+0807hta emex+j+ivalent 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 connect*hhu /5 x:zwc73zfz eyed in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF cc/z: *wezzx7fhuy3h 5apacitor. 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.ni+ta21*ibse+ 9fckab 4e 8mx The combination is then connected in series with a 12.0-V batterc1ka bn4+bme*ti8f+2a9ie x sy 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 are connected in pa+qs ccie9 bp0a6wa76g5,i2g x fnj3ir rallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mFrb+6i2, 3sci0n 6awq 5fj 7pa9 xggiec 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 t*ncv;7ff+nw8z sn*j bhrough 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 on chd1ev1j524x i(dwp+fbf5 ha:q 8m 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 conne7lzxr -q:4;- q fkmdqqcted in series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combinationr;m--zq4xqd qflkq :7 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 then connectb87-(jhlnu1 p wsqui 2iv21 raed in series with a 3 -u7ul8p2i ni(bs 2hw ja1rv1q.0 $M\Omega$ 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 ropi6w p 3kf. iu-t6h:yesistance 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 ressgylv kqd sw.jec0+ x+.4-m8y istance 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 ic /fyn+11rv exe lfr)5nternal 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 resistance of 40.0 1ybb11xs ijzm+7f:fn$\Omega$ 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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