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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 betwe1 15-a gzpfwik -9pcqten the terminals of a battery, when no current flows to an externaqwt-p-51 1z 9if pkcgal 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 ter b+6y52)yf.ld 6bw os9yehs mpbchgk:pg)-;e minals of a battery, when current flows to an external circuit, is referred to as thm )g d6 6bl5g k yph;ecbyfps-w h+92bys:.o)ee

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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 rz+*gg0v 64mgf.vo ekare connected in series 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 connem bqfk*2o o-:xcted 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 t1 2)x-9 gqguz bjrn(orhe current of 12 A flows frg jrn1-gbo9ur )q2z(xom the battery, 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 tofj n mok+90t:kp fp);b a 12-V battery. What is the voltage across any one )kont jfk0f pb9+ ;pm: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 source, the powe 8 d a8l(navdh)0s9/a/uy/ *mckw bgiar suyl89 ///n mwa(aai vd8b)0ausg k ch*dpplied 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 battetvze yc;1d7v w7tyzx18k 7 (xdry,

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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 certx z8vq(mv u9 / s0:+ oesaxp +6lr2unmymg6j4yain 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 y zc/9u2;ej ba.pz qj*a 12-V battery. What is the voltage of any one of the je.c9b;*2z /pjz uaqy 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* b dfh5zrpi(urbwy 7n*8:6mt to a battery. If the current of 12 A flows (z wbd6u r8hf: b*pnr7 ytmi5*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 para t.pp4eykhx/h 9f(3jxllel. What happens if one lamp burns out? (Assume negligibx9ek/hph t jyp 3(f4x.le 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 constant voltage source,w1bbrk*y) acw) j5fr5 the power supplied byc5)w rwy *) rbfk1abj5 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 ly)t ixc-29xmck9 cl ,R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected in paralx2)y ltccm-c9l9i, xklel 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 junctiokb 6d-ete4t 4in rule.
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's loop ru j;s9i wij+cq4le.
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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 ;nrk2rwsxj44j,a (mbexample 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 a jt. r (9. t7s6kl,svavixm+qxn example of

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the equations here is valid for the circuifg+bcu5x5je g9i7 mu9 t 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 ident dk2-y2,ydf/7r sw wbk (ph7cfical storage batteries together in series ("+" to "-" to "+" to "-"), and place them in a circui, wk 77hwkypf-s ( 22frydd/bct, 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 battbfwy9 ve7hvdh3tr .2 z2x//xk eries together in series ("+" to "-" to "-" to "+"), and place them in a circuit, the combinatiok w 7v2ty 9h.brxx fe/3zhvd2/n 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 stor;btj6foot q/.otb +q5age batteries together in parallel, and place them in a c .f/oqb+boj6o;5tt tqircuit, 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 b 5ixm- 6/dd 80nsf (ewekuikc60rak u.attery,

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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 equi72edp2q d*kelvalent capacitance of the combination increasesdqd k72ep* le2.

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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 series to a battetq1c:ba sfos9 )i5yz2j 0n1x wry. If a total charge of Q flows from the battery, how much charge does each at01cofyx 9 jn5sb w2qi)z1s: 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 parallel to a batte8 rh+s/wux;rhry,

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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 connect;dbzi ,x)+0//jjr3bv u eo /dxc2g mejed in parallel, the equivalent capacitance of the combinatr x/,d ucj0v gozb )ej /2dxm+;/jbe3iion 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 battery1srpb ynj15mtuw(.0- 7c ytr b. If a total charge of Q yr(t s07prybmt nb1u1c .j5w- flows 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 td )q q n:kcwf:,*kbcn8he 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 connected in series to au8 a2s5b dfwh e2;1bbdn ideal battery of constant terminal voltage. At the moment contact is made bhdwbadu s5 2; 1b2e8fwith the battery, the voltage across the capacitor is

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of conksmy2zi.vs 4z 9sc 0w6stant terminal voltage. At the moment contact is made with the battery, the voltage across the resistor is cy2s 6ssiv94mz0z kw.

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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 l66hh20adk -eux 7yegy) l3ux ideal battery of constant terminal voltage. When this system reaches l)gke e dy2ax3660l-uxu7hhyits 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 shou/fv042 not 3zwlrrzkw4p/(xcld

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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 ammetohw , 4 exqeos(8ih47ner 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 obtaig -s,l oi9r/oypi3i ,h)7znpaned by properly placing an ammeter in a circuit consisting of one resistor and one battery.i 7 ph-/sli)oz ,og,piran9y3 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 an0s/*hiv zkcjea 6.5 ammeter's shunt resistance

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to construct a voltmeter from a galvano q1 bfupaos3 j)73 :q;sqb,etqmeter, one normally would

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the resistance of a voltmeter's series resistlx xkz9tz2f xe.a9 *z 0u6fri3ance

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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 res)5wbeu u dov)uz 7m71eistor. What happens to the total current flowing in the circuit as a result owz17 do) umu5)7vue ebf this action?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wired in series with an ammeter, and a voltmetep* dcp7.68mf i u6y ytv be.mctp a3ar5,8*cbur 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 yb,uir8p.cebm5y3*a*t c. utap7m d c68vf p6value 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 aa5s+em:e*s ys o f/z,jn ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If one+ mess:fy5j/s ae* ,oz 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, andzdk p)(my3 r.zlxt3 -o 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,jl9 isz uc/lrbz u4;/ 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 122/d+at c/i ba m3ffm9mk h njb:t/3ag8, 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 combinsq iv;7roc:vunqr k)4 7 50nhuation 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 of f:mjsq :3tt7 i,m /x+x(ntidn 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 pq5 oo;grcfteml+dl +7* (r(u jhfbu;8arallel 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 5loppkqru7m7*5+wbkf8 x 0 uccombination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 6.0 $\Omega$ resistor?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combinu *0xj*zcn8m ,xlevz -ation 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 armq: dkww00 +uop,se(ye connected to a 120-V circuit: 1200-W toaster, 650 s0w up+:qedw m(0y,ko-W coffee pot, 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 12gmyeo5 gizz8gf8 9 osufi-3p+ro9 8e00-W light bulbs you can connect in parallel in a 8u ifgr 52z 9ymeze-gs 8o+ofg9ip8o3 120-V circuit without 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 thuu -,f;exh8 $\Omega$ 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 30k wl97 i8,- v2 p 2ag8pnwzlauam;pon+ $\Omega$ 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, 8ywfj jncp+.hw 5n p1(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 and 9.0 uiuta)1v,p aw+ c-hx0 $\Omega$ 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 anda.:2brjl, c f (ijce6htl ,bo8 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 annx w+z.ru4th .7lyx t9d 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 the2 +c6v1lw njjo( ou;sohjro 7* 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 througb1dgm87tt(1 l21vf ho8k furwh $R_2$, 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 th nr9fjl98a -n bot4zcrqj1)ng*r;h2le 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, dei.vr x6/jy3ge0vuk j ,termine 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, d bbj6- k*qa 5tqusge+bb5 bu4;etermine 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 tto.y ,au-h/ xhml 9sl/he 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 twv0sog5ylj ) .nxxk4 ogr;0(go 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 relative to point uvvg4a*do iw( t6d66er.cz)s aajc)9 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 pc4w:*b-o de mzoint D relative 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-9s7zafjs1yez( 1xj;z a ct)q 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 poi at0ag3/hk6c qfg se4982sh uent 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)mwoj-q,k q6 j+ure8smitr ww;; rk 9- in the 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 curren;9a5,h)vwxq m z emt*nt in the 8 $\Omega$ resistor in Fig. 19-6.


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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 4 r x) j(dnblr/fp1*no6$\Omega$ 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 irs wv: nia0kij c;e 8waoe:586n the 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 1kdra).p:lj5 f 8 $\Omega$ resistor in Fig. 19-7?


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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the solid wire connecting the upper left and lo)rybd/ k0tcm1 wer left corner d)r/c0tmbyk1 s?

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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 conntm5o1o;q.hz rected in series. The equivalent capacitance of this combination ir1zmqo h .to;5s

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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 connect ert3ipp2(z 1rbm3:h (ffsj 2qed in series across a 12.0-V battery. How much charge is stored in th(tepp3s2 fmrbi( fz q1 h:2rj3e 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;zrqj1zz29h c in series across a 12.0-V battery. What is the potz2cj9rzq ; 1hzential 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 acroi1-m m ls*p(9zzb8txfss a 3.0-V battery. What is the voltage ( x91*zzf8lstp b-imm 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 cappmd lbpj: )d-8g4n,3xw du dn)-q9 hgkacitor are connected in series across a 3.0-V battery. What is the volj,hq8-n)g xk4pgmd) wddl :p b3n d9u-tage 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 connected in pa9 mk+b*p2o u s*fc ewt*c.(gyi xu8jn pco5u/7rallel across a 24-V battery. How much eny*nkc*cbijfts5woux*./ +cg8pep( m27 u 9 ouergy is stored 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 are connected in parallel, and this prl/ xdod. z**pair is then connected in series with **.r/l oxzddpa 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 ky czf,y *:0 sym6vr5g8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitorc*m:s65rvyykg0 f,zy. 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. The combi9e4 xs; llh8k: e:8:7hgin uu 0vflanpnation is th i:e8flvn u:: angluh 7k4sh8l9 0e;xpen 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 are connec50cf0m s )m1gx:ktb;;dmf riemsvk// ted in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the volta:1i ;/ ecs km00)dxkrgmm5m;ftb /svfge 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 lvy:(.1zeqfhg jd+8,jse ii 3a 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 du8jasu:3 j;zfv *+ okiischarged 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 0fe u slgxc,wj/e3+ qg4 ck(z0with a 0.50-mF capacitor. The capacitor is initially uncharge jclseec+300u4kfgw,/q xgz( d. 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. -8 fi148)x -kiby beg4-e0zx cbjxd yifod55zIt is then connected in series with a 3.0 bzgi5zbeej 5dicydx4 -yff 1ko x80x8-4) -ib$M\Omega$ 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 )njo,z /jna:;jr ij;t 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 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 resistannv,) f4qx-.l3r pey zxce 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 respi y-;1gl.u;lfhza:q istance 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 resistakfuk j v 1l rlaq2h .y8r7*b-fh,71ofence 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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