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习题练习:Physics Unit19: DC Circuits

 作者: physics 发布日期: 2022-08-17 15:49   总分: 102分  得分: _____________

答题人: 游客未登录  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 termi(d9)lb4 eyt;4e nvv,orlc 3 rxnals of a battery, when no current flows to an extern dc4(re ov lel39nx;r,y4tbv)al 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 a battery, w0 mzwci : k)j*7o k8jbpzq4hr6j4cq5xem 6ot *hen current flows to an exteroqh :m*68e c ozic*5qwkmx7j4 )60kzj4 rpj btnal circuit, is referred 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 a* uw5 +iyxccl b,jgb/ v.r 6 qgrzw5cvty)9/d/ 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 seri3i b2pvdgwxx30t2 ww6es,

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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 current ts::zq;vx9 9w -ugkv ma)upc+ of 12 A flows from the b +m:w9)9svtpzcku g-v q; :uaxattery, 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 battez q8asm; gde0l.9sc8.afb.fjz7 ix -sry. What is the voltage across any one of the rfssfe8..xazaq. mbsj0g 9dc7;i-l8 z esistors?

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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 vod( 1aua; p1gx o;x/wt7nrh+kfltage source, the power supplied by the sourdafgauw(1 / ;nxrt p+ox 1;h7kce

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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 paruj yri8q1qb6c 7 mwrad7e6o3/:t xxe1allel 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 in6:; 7 u/j7n u7c.edce dr hrwz5wchly* parallel, we can be certain that

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in parallel to a 12-V battery. Whatav(n3kby r (w6g e:(loul7a6s is the voltage of any one of u ak nvwlso(6e 37a:b6rlgy((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 a batte*+8( pbvqmch,ya b pj/ry. If the current ofbpyq8j,+ pmhc(/ av *b 12 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 pa-5aumrjdd8cn9 fq0csm (,q5m rallel. What happenmqn5,dr uc-jmc8dq90 a5fsm (s 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 ad+ n*7.7j cg6e)bwoxycmx3u jf b)b k0eded in parallel to a constant voltage source, the power supplied by the bwxgom ex c6kj)f*7eybcu3 7.+nb0)jsource

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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 mavum m )nc0mv08h1fpf +ximum power each can dissipate is P. Two of the resistors are cohm1m08 )fnfm v0uvpc +nnected 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 y3+v -zyf sn:mrule.
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's loohjm-nr(i yj +(l ;bkw0p 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 of(-hl bb8zpsv2

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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 exam-3h /79s/mudkh+r; k. uhncl2x vnbsc ple 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 equationxlrdy/ dx 1*e-s here is valid for the circuit shown?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together in series ("+" t( gzakfyv3dx33/ shd e*j2p0co "-" to "+" to "-"), and place them in a circuit, the combination will prok 3f3/c 3dp eadgsxj*(vh 0yz2vide

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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 identu:qjz;-1idkd /ke r: fical storage batteries together in series ("+" to "-" to "-" to "+"), and place them irujk/zq1 :-:kifedd ;n 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 identica u;.aaye6f*9gh ow:h3z6rncj l storage batteries together in parallel, and place them in a circuit, the cgah:ae ry3 *hwnoj9.;f6 z6 cuombination 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 b tyo0nqwg(c t.;2p7rin 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, the equnzjlhdj + tz6,/, 6bbtivalent capacitance of the combinatind/tb,jtbjl ,zh+6z6on 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 a ny(xn-qr+-vi re connected in series to a battery. If a total charge of Q fn- (n+qvx- iyrlows from the battery, how much charge does each 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 para-/ 9-vbzn/ oeywrpxd0 llel 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 par 9m*t0zf vpmp0rl*y u.allel, the equivalent capacitance of the combination increasmr 9z0.0 * t*fplvmpyues.

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors arej(i.agm-yb * d connected in parallel to a battery. If a total charge of Q flows from the battery, how much charge does e*(ymj-. b adgiach 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 quanl wd/3zd wmn.5o1;syntity 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 arq*7u l1 vx2kerjfxw) h1.y koeh nc8:1e connected in series to an ideal battery of constant terminal voltag*rqkee.1y j:fhcx1lu 1v n2 w7hko8 )xe. At the moment 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 series to aa kl.v2*bj nv-b 5ry,fn ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across *bvkf-r5 a lyv ,nb2.jthe resistor is

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of cgo.:1 tiqg /oronstant terminal voltage. When this system reaches its steady-sto1 .igqt/rg:oate, 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/ l3zi;-h2 ku ig 84tnmcma8*rakxi7wuld

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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 amm1* d.) ry6qoy trg3hp:zj2n hheter 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 proper3wj v b(h.pio*ly placing an ammeter in a circuit consisting of one resistor and one b3jhv o *wip.b(attery. 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 resis,9d-s a b9q+y d-2 prwew.qzbwtance

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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 voltg) numiy -qiehb7/5: )jlc*rgmeter from a galvanometer, one normally would

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the resista+sbcjl (f,fhyn:h *; wnce of a voltmeter'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. Whaw cd ooxtp1,(p9 5*fjpt happens to the total current flow5*wpp,1f 9t docpjx (oing in the circuit as a result of this action?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wired in series with an ammeterqtl;-r ht,pb q b*fm;/pi2.lm, and a voltmeter is placed in parallel across both the resistor and the ammeter. Thfm*; ;b.l ti2qtm,bq ppl/r- his network is then placed across a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wired in series with an ammeter, and a vol0g;:++ n- yvskeojbaj*ow 0bdtmeter is placed in parallel *+ yns gj d;bkewo0jbav-0+:oacross the resistor only. This network is then connected to a battery. If one computes the value of the resistance by dividing the voltmeter reading by 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,n0xnqx-o r sx+ 9br77dx6k l)p 3.0, 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, and 6nqce 07.m51uz + tkmky.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, andmgrx m j;7th:j :e6 mc)5m5)w mctm2xu 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 combinati/wvd o9buf*s9 db-b4:*b ncqaon 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 oh+ d2x1yrj4 v c4bk/tnf 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 combination of 4.0pr,5ctfv 3umcd7o j72vu+dwzzg b ; /5 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 12 $\Omega$ resistor?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combination of a 4.qxft9u +wb;nvf3cv3qk;/, p q0 $\Omega$, 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 combination odmsk c);4pm (rxz 1;gtf 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 circuit: 1200-W toastuz5ua md*)0da)7ogs der, 650-W coffee pot, and 600-W microwave. If all u u5d ag0da*dm)o) sz7were 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 x dh .j-6nkd*,ymbq2h 100-W light bulbs you can connect in parallel in a 120-V cir,2-.h m6*dknx qdbyjhcuit 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 lua8l;my6 g9o $\Omega$ 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 30n5inv)x s91; ro c5uxs $\Omega$ 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 10g6+dq+ e7 jt . hb6vcwmcr)5by.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 5.0lmu3 g 3hzfp0: and 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 k 4 -qwvmeaf m) j/bpb5s92m9gand 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 a +gqq-w*xzqg ack;,3 lnd 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 resistanc(z ); .zxynp3wi tw kpy58f0kye of the 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?


本题所包含的其它图片:

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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 throughp6v.wdpwr,1w $R_2$, 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 aghb/spu:;gmv*4s y4of 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, detyb3 ;m1vb+xjxa 6p gqxywx;w:6c9zo , ermine 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, determine t0u;vspqi u a67he 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, determifiq -88wxoh2 8 wal)agne the current in the 4 $\Omega$ resistor.


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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of+*1sh tdw0 ts8fro q0v 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 poinb m lkxy6z)yw2e b +8p7,rzk;/h )scaet B relative 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 relativhe ge -w(oi9d*e 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 the battery in Fig.:r-j4sso bj79,(m gd sdaqji:pmhn40 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 froe+ si (3cy9 mu.x b1eddl+jf9jm 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 currenty5ex)8 9 jhxgm 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 current 1n4v+.i zcaxh 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 hoygm83u3 p8nthe 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 12 (pu0gdq+8j7 zkjro 5h$\Omega$ 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 18(/l8)h c0(udeitu;2ss + e qby b)eyux $\Omega$ 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 sor,phj97yy*/zq )a td dlid wire connecting the upper left and lower left corners?q h,yt d/dr)z7ja9 y*p

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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 series. The equivalent capacitance of tha8h ykk94ll:o3 k o.jwo3.k4loa8h9jw y: kl kis combination 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 se+6/eb d a:9*i dnbicvlries across a 12.0-V battery. How much charge is stored in the 5.00-mF capacitor?niie9/:6 +* dcvbal db

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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 5:;ak 8ak5y/n+fyeyfv 0.0 mF capacitors are connected in series across a 12.0-V battery. What is the potenti5yn /f yka8+a fe:;kvyal 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 ai,v v/cy)9coo p-epx42 c8ahhb/+ klqcross a 3.0-V battery. Whayvk/p bepc48 /2+xlhoi c9qch- ,v)oat 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 a 3.0-V baz6g( b l;f0xfg8lm2cyttery. What is th ;bfzmxg6 g2 8c(yfl0le voltage across the 2.0-mF capacitor?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1.0 mF, 2.0 mF, and 3.0 mF capacitors fwf5 j 4ee/t2fare connected in parallel across a 24-V battery. How much energy is stored in this combination when the capacitorstf5f/fe2e j4w 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 arg4sr1c1jrb0 y2 uu/yce connected in parallel, and this pair is then connected in series with a 30-mFr2ccjs0/4 uy1y1br g u 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 parallelw4j+jlw)nw0 4/zx .q01ojp xsrgrear8ar q.0 . The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitorz/pqa+nrxjx. .q j0e)w1 0 0 arogrsj 8l44wwr. 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 parallw2b 9g--h+icp j*fv ezel. The combination is then -i-2ewjghp+ v9bf *zcconnected 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 connected in parallen .,d57zwbjk 9cxwx0ml. The combination is then connected in series with a 12.0 w.xm9nx5,bkzd cwj70-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 is charged through a 50 v )dssa.fj8x5j 6ni *u$k\Omega$ resistor. How long does it take for the capacitor to reach 90% of full charge?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged to 12 V and then discharged thrc/j gsnty 9a97ough 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 connecj9j(1-x olxj2k*v3f m)sfjqbted in series with a 0.50-mF capacitor. The capacitor is initial kj-(2jf bq3 *ofl )mj9jsvxx1ly 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 then connectedhdbh+-(ng hv 3 in series with a 3.ghh -hbd(+v n30 $M\Omega$ 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 100 ,g.cekz6w(4wl 3ltpf+s h,y g$\Omega$ 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 resistance1znb bi2vz g.qkr3t +; 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 re8gwy2gjj2ap 7 wef l*d y14uq7sistance 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 resisc u k eb0vq9.+20ecrv :efs+rrtance 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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总分:102分 及格:61.2分 时间:不限时
未答题: 已答题:0 答错题:
当前第 题,此次习题练习共有 102 道题

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