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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 6ny*tz,i;ry4 r ah,48tygp hithe terminals of a battery, when no current flow;irt 8zntiphy,44a 6y *,yrghs to an external 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 1(n h(zwmakd3 6b fe-oterminals of a battery, when current flows to an exterhowke an(f 3(db6mz -1nal 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 bat3 yia zpy)/j5wtery

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connv ,arvs:hot8y-4 t+dm1.t zra ected 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 the curre 8bpzun8ri v53sw :;3jl uh2i1 otl,vxnt of 12 A flows from the battery, how much current flows through any one of tw b,nu;s r v8xj5oiu:hilzp318l2 v3the 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 dk:o,4 darg/ f7q )mlpm+hnp)are connected in series to a 12-V battery. What is the voltagkf ,7r 4m)+hdq oa dp:mlnp)/ge across 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 source, tu l ycm0rzei;t2 m8bs0uq94; ehe power suppli 0usczu 8;;ltq 4i0beme 29yrmed 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 in5 ei::b*ed+bms e ,injivb9,z parallel to a battery,

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected inxi3; kv(6 gi**08xp* ibblg b)tkdjhd 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 batter162*qrl 6g( bl njqq1* tuccfyy. What is t1cj6qfy 6 rl**21 gqlnuq (tcbhe voltage of any one of the resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resiston6 1ok .f6ta-dyqx za3rs are connected in parallel to a battery. If the current of 12 A flows from the battery, how much current floda.1 6az6qyk3 fn-xto ws 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 ligh02rgusy.ow .qts are connected in parallel. What h gys u2rqwo0..appens 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 parallel to a constant voltage source,lz5yphx5ov;bk w sd- 2(p e:9p the power supplied de2 b-vl9y xh:spwp( 5 5;ozkpby 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 c(g/4zn gyivzc:ah ) frc1ak x0l 2;;nR. The maximum power 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 maximum power this network can dissifcgi1;2z )zyx nclr0;c na(ag:4 /kvhpate?

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16#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's junu-w60g:me(os 3 u:xws5sqe saction 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 log(b 0qi:q fmm(yb. ue;op 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 istt825 1a /vq vdhq-+*skx:ggra pji v3 an 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(n1om9+ ykhy ha:)mo5 7gaiii1e iq9w an example of

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the equations here is valid for the circuit s 0v2goblsuc)*y0 qo1ad.p- xqhown?


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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 ("+" to2uqtzuz1 / zxx8 v2,7e k17z:adsd qht "-" to "+" to "-"), and pt2zexzq xu k27z1 sq/8tv,h dzu71da: lace 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 series ("+" to "-" tonupn -4vlwe15 "-" to "+"), and vwp5u4-l 1ennplace 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 batteri hy:sr hb3hgrt97;;laes together in parallel, and place them in a circuit, the combination w hhg;rt:;ryb3h9sa7l ill 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.ezuw4 zbgr3pxe (8 o* 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 equivalent capacitance vko 2(-o/fxru of th/vf(o-u k xo2re combination increases.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacito p w*bhmn;t jk d,+;41blr7dfqrs are connected in series to a battery. If a total charge of Q flows from th 14*db;,kt bndqrhw + fpjlm7;e 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 cond2x7g-gy uvey 3qj(n9nected in parallel 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 connectmk3 6:.fyd1-q flvbi bm al(1hed in parallel, the equivalent capacitance of kqyvf h1 (bfb63aim1-d.ll m:the combination 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 ap/7tj tn2lly/ battery. If a total charge of Q flows from the battery, how much charge does ea/jltyp /ltn72 ch 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 quan7bzefvyp9 u r4 e . jk)8u4fwr)0i.rkntity 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 an ideal battery of cjw6q nm.i7m r;onstanti mmqj7n; wr6. terminal voltage. 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 capacitorz:+zg8 +l)bbcowth rj8wz( v4 are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the vobw48whbj( l+ gzc:v + orzz)t8ltage 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 bu5f- /tsl9 cvazn:/riattery of constant terminal voltage. When this system reaches its steady-state, the voltage across the resistor 5fa /i9vzrt: cnsul/-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 shoul0*b mcg s 4(mbksh*1qi.+wrnzd

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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 ammeth9:mn5 urq (; rwz2sbqfm)2antt9/xv er by the addition of a

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A current reading is obtained by properly placing an ammeter in a circuit g)0*/pl9pucaglyy g+ consisting of one resistor and one battery. As+yly*)0/lggg9c pp ua 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'bx 0, ,g7lffa/t7e zim-w,pdys 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, one normally wo 6q7:reikj9;au,8jak sd 2oqauld

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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 z(ltmxzjk pzz12kz0r.s)z,/5w3uy u 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 pll z /:7h 6ky/thkp0m38qpmmp lacing a voltmeter across a resistor. What happens to the total current fl p h/q myk8t67hk0zm:p3ll/mpowing 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 wire 89p bh3kvvdu:d 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 k3v 98b:dvp hubattery. 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 oxdatidj7 n-0y6/vn; bt ik,.an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If one computes the value of the resistanjo dbytdt-n kxv 7i,06an ;.i/ce 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 2dpt ;zi 2-v-eu-+bwry3uj rg, 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 6z /rb jtckh+jx9kjj/ ( r3-9je.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, ann)ybsgo,w -w8 d 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 o+y lm.2oxznv5;r.t mr f 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 og2o*jhn47s m bf 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 comb0js6sklcl fq .39p :idination 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 combinatio3he c7cc)z0pl5 e v3czn 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 combination of a 4.0 qcn .yqfj.*f5$\Omega$, 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 pfxye ,oij 1;-are connected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all yx,oj;-ip1 ef were operated at the same time what total current would they draw?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the maximum number of 100-W light bulbs you crb4z 20 +p9civffz 6mln-q z7x6/cggy udf//dan connect in parallel in a 120-V circuit without tripping af/4q0rz2z6c+ f vzngfdc9d xlp /u6g /yim- 7b 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 tr.6; ve-dfbnvrl yuv.3s x5/ 0,eayo$\Omega$ 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 a kcko4pbdl gnrh5 )k a3d fp+*d/x6x:-nd 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 103ftnl52.h e rg.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 5.08xcv-d mgtw6* 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 ;gez8g 0nfq./-qhva h 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 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 andzz : 8ws;xttqr. uhu jb+v03*d 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 cir 1,*dmocallx)2yqnski (k.h- cuit 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 throu(efw,vyitrti 48qz-/gh $R_2$, 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 circuit in Fig. yrtv esmaw9; h 4satd7m+8/0o 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, deteg +ftn.cewcfn c9r: sm7ev .yy9l-00vrmine 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 the cur/gech)5l t -ut;(t gnfqr3- sxrent 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, dete.di4gas unk5:rmine 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 point A relative 2(s xagx 7jdsv5,th a6to 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 relativelu;7iih5 , fe1ko v36bui*mzr to point C in Fig. 19-5?


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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point D relative to point C in Fig.q(36+wolehtl:e )oa;hc)wq y en6 wi4 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 the4- r;gumq2ecet5gj v 3 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 in Fig. 24r(xge e9zj9wvw,wr f0v/dneos 9x; 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 curreney1p05oyl9p ot 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 in the 8 )ku)i*p,p 3( . pilp+ck9g sdcxm hgl3$\Omega$ 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 currenti p* 9ge.um:ydyu*(jb in the 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 jxl+ mb5vmrr **yh;;p 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 15m qbm ;co2d4n8 $\Omega$ 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 hjg 3/v .szvpa156rpj1al zu-and lower left cor -jrh6v3zl ps5g 1.jaapuz/1 vners?

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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 cao p8,)z: lcv jqa,oew6pacitance of this combcv6q zoj:8,w),po ela ination 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 acin */zeb2h +qhross a 12.0-V battery. How much charge is stored iz2b*n/hq+h i en the 5.00-mF capacitor?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.00 mF, 10.0 mF, and 50.0 mF capacitor)-.oyo1+qg1neukx l ri2zz1w+ kiou 9s are connected in series across a 12.0-V battery. What iskgoo1wrzz)y1e2+iuxin 1+k lo-qu .9 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 cap 3,ilv w94f4lgeniptd/ mo0,sacitor are connected in series across a 3.0-V battery. What is the voltage across the 1.0-mF capacitor/mo449wv insd3ef0p ,llg ti, ?

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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 ba5ooc)lxojodlb/0 -vb -c(8lqttery. What is the voltage across the 2.0-mF capacitorc( j)qb0bv8 xoll-o /c5-olo d?

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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 conts q c4.p6r(fn-bdtovzrwfq3u :;2 8qfm .kd*nected in parallel across a 24-V battery. How much energy is stored in this combination when the :r 6f pdqf4n qz 8.o(c-;3 dtt.vuw*qsmr 2bfkcapacitors 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 connecte )qpm qa h--8.etkn-gyd in parallel, and this pair is then connected in series with a 30-mF nt-ghq8m)ky q .- -paecapacitor. 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 connectedgtl n2kcq71- q*z dek, in parallel. The combination idnkt-z e7c*q, kg ql12s then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent capacitance?

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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.tizhady/+6 cwny 9h+9h/t3kg00 mF are connected in parallel. The combination is then connected in series with +n 9ach9wk/i6yzh/ h3tdy+tga 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 parallel.gcqz ; plz,za5)16bwuy+sj8 j( 1p ydh The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What j1z )6h1jl(8qac, sy b+;gydpzp5u zw 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 chtxaulif6ur+7hqg/ e) t0 s u7,arged 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 discharged through a zvuu1 .f e2iw4$4.0 \times 10^{6} \; \Omega$ 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 connecteafqtm+a0k9wi(lm699l )ud n td in series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is char+dln9itm6kf t w) 9l(a 9maq0uged 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 c pa+yxm y 20rcy-6-kvponnected in series with a 3. 6 kpxacvp2 0my-+yry-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 resiz i)0-ohc/* xfo 6nwxvstance 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 c/eqn r,b es.eaa0m 5w7oil 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 int9pcc ap,gsuo) t i*.:lernal 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 resistal4qa tei7 r6pt0bg: i ,p0a/kfnce 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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