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习题练习：Physics Unit19: DC Circuits
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 作者: admin  发布日期: 2022-08-17 15:49    总分: 102分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月17日 12:52  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference between the terminals of a battery, when no cus mx nm u8 roy7wgkc+8ts:ijt))35i-ys1hsy,rrent flows, iy5t7u3txs)- 8nis ywyj s8gs )ch :kr+1mom 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 bmj09v5 4j gkzeetween the terminals of a battery, when current flows to an external circuit, is referred to jg 4k0e59j zvmas 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 batteko yb 4t-cs*ltw ak7f k1v*i)7ry

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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 dbm75v) zw vr0dt we1+;:ekhd .nym+kin 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 ser iionq6yv wd*vtj+rp: c*/:,xx h uw71ies to a battery. If the current of 12 A flx:1+yqip*,/7 i v xhwrwcu vo*:jtdn6ows from 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 seriozrk1jmeu n9xn t;9 fa(*f(i-es to a 12-V battery. What is the voltage across any one of thet;jafn (n iuoz9* (xmk1 -rfe9 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 power s1trp .apg4f *0dj46sa:oip zwupplied by the sourc4: 4jwf0p* r1. pzasg tpdio6ae

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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 9 ey4pmp34* s orzqtw5parallel 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 in parallel, xw;qsm/h v4 z0we 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 battersf-o1:d gyf8 (dkmqx+ n2jeg :y. What is the vdq1s8 yon: f+mfd2j (xg-keg:oltage 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 a battery. If twf.gtbqq a6)9 he current of 12 A flows from the battery, how muchqt qwf9b.g 6)a 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 gatxt ,i7.ehsg,88 j fs )im4l 0ul*dylights are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in asx lyf h7tlm8)jdu4s,* .,ite 8gig0the 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 parallej2 8mnel)hy3qf5 5ak yl to a constant voltage source, the power supplied by the sn)5l2 q3 ayye j8hk5fmource

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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 resistancem;6s j7jq ous/8st-l(a osxx* ej8le8 R. The maximum power each can dissipate is P. Two of the resistors are connected in e8sjojaolx lt jq;/sx(s8 *6-se7m8 useries, 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 junctimc/iod1o.hey 5i+ ya1on 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 rulgxpsh4uw4 9 h4e.
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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 examcz10q jenqxnmc1 ;0da9k d5 j0ple of

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's junction rule is an exaqxpc1l 9gd(5 dmple 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 equation ers9v:)d e5bys 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 ("+" to "-" 1*j/xq)kg (j (bew ftlto "+" to "-"), and place them in q x jtf/1(bjk*e( gl)wa 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 nf. 05g vbtahb3 *eamw:a97rf batteries together in series ("+" to "-" to "-" to "+"), anwvhf5am: b93ar.ega0 b *ntf 7d 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 stlxede .*b b;,,lvz*r qorage batteries together in parallel, and place them in a circuit, the combinavlzle dbbr*,*;q, x.etion 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 azpx .3xj6spmg)g3 az2*, igwseries 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 cai8ro. v03wgv tpacitance of the combination increases8ig.w tvor30v.

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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 battery. If a total cub2069 lzy6ep41 y lvwdji2exuc 6l2 rharge of Q flows from the batterlyu6 66y2 lezpx21j dc 4iu0rvble92wy, 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 capaci,j nyg z4co u33*qj1eqtors are connected 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 connected in parallel, the equivalent capacitaft+0z(st2ul r nce of the combinat2(uts r0+zlf tion 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 conn:2g:xk c3ek:e7m l melected in parallel to a battery. If a total charge of Q flows fkegclex2:: m73em k:lrom 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 q0firq2jb hr 8-d:ynt-s)irn 0uantity 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/ u 8ao2yuv 5:p7ttjyf in series to an ideal battery of constant terminaytvu:o/a87j fp t25yu l 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 capacitor are connected in series to an ideal battery of cons1bpuy 92t 04pqjdjk:xf 0(h j/s7mibp tant terminal voltage. At the moment contact is made with the battery, the voltage across the/2x:0ukj (7jpbt 4pdijbs 0m9hfp1q y 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 connectcnnuu+ 37y l/w8z+rpd5vn8e;u nd.r ked in series to an ideal battery of constant terminal voltage. When this system rearz.yvnl+5;8n7 nnd /38ed uukwru+pcches its steady-state, the voltage across the resistor is

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal ammeter shous vw ;)mhuh ):e-mj.djld

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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 addition 8f.az wln y8j943cq3.c ylebt 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 cirnfh:g (qevsh* b(e,,s cuit consistin(:,,bg*sf ehv qs n(ehg of one resistor and one battery. As a result,

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Decreasing the resistance owyht6h5qx8n,jf hk 2ukz+51h f an 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 fromp7h d,l qzw6tz)kdaxzq3j: g475gt *q 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 resistance oplnoj 83:m,vht4k*q o f 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 acn;9slenk: (6 o 4spey voltmeter across a resistor. What happens to the total current flowing in the circuit as a result of thopn sc6;ylek 4:n9es(is 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 vomn3le 5ex8lu8 ltmeter is placed in parallel across both the resistor and the ammeter. This network is then ple 35m lu8lxe8naced 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 voltmeter is placea z bv1i l69hwt-;zz.zei-5m bdza ihz;it m.l1e-w 5b-v9zb 6z in parallel across 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,m rfi2 /2488dyypbwcu 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.u.y/c8wumrglb ;ry 5 6.0 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12, 12(,gvo(f ;dqi y, and 6.0 $\Omega$ are connected in parallel. A 12-V battery is connected to the combination. What is the current through the $6 \; \Omega$ resistor?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination of a 7:ge xl(xdbzuk6o,+g3.0 $\Omega$ 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 flowse w.//5 gr:bhw /a7ergf3nes c into a series combination 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 into a parallel combination o 6z4and53vua ry1l +sqf 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 parallelm. 66w gysfgi2 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 into a parallel combination of a 4.0 ;tm5 r:semck1u zr(:uw 3pqh8 $\Omega$, 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 con jf589x ky(mvnnected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operan vm(x 5kjf89yted 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 can connect in parallel in a )51nftqonf oz;8c ak86egs j; 120-V c z1es aon8qk;8 ;6)gocjt5fnf ircuit 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 32an 3:x.rs0 ois/zoyx)bge g$\Omega$ 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 3qrbc-;, ichh59 djli;0 $\Omega$ 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, andd6h r+uh9+et- hunhz*+ bqv- a 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 andxnh2dn75e/pvcd eb3/ 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 4.0 $\Omega$ resistor?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 and 9.lqsxp s xc*pjw;-h(7d ,f6mnuudtl;gu6 g6 ++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 and 9.0 fi t2w5t6l;fh wguqo:*)sl .ij czb88$\Omega$ 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 resistaixa ;o;c05a;lw qtmj4j;f9h0dp ll,f nce 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?


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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 throud t2;x37hemo egh $R_2$, 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 cir+cb 59m8em0ci 7lojs2ro2yl lcuit 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, determine the current in the 13l7mc/t vsy syy . 2ngk+wby71 $\Omega$ 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 curre6 8urhwp0i o.39au5jikle, zcnt 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, gprm7y/ja d()determine 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 poiup cw9* a8xrk*nt A relative to point C in Fig. 19-5?


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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point B relative to point C in Fig. 2)v w/jnbv+oirb1yr ) 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 poiwx 6:6v *hydky5ffty/nt 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 the battery in Fig. syh1w3 c umnpu805)9 dh pu u0pdb64hk19-5?


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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. 19-5 b wcq,kl2*1kd?


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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 u3tb72r)g9plalgma6p ;k b2gu:i n,a7 $\Omega$ 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 th0w0ka4 .7nb +agatptr e 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* 6x-nho8-)fnpqdk ax 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 ior6)o. m4mt kpoo :ps5 (mjg2nsqi*i5n 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 17mrtbq6uagt7wq5 5+ z8 $\Omega$ 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 leqi9 5mot fg36xu4; vn7i/olt ift and lower left cornersqx lu5m tv/9tio g67;i43iofn ?

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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.m( o,hw *w+lblfp6gcf- hjt; : The equivalent capacitance of this combination - f,;olwchmb 6+tlw(fhj pg:*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 s 4bgou(/kg sw fb9wsg.u; y.m+eries across a 12.0-V battery. How much chag g s+ 9yg.kwbmu 4;wu.ofb(s/rge is stored in the 5.00-mF capacitor?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.00 mF, 10.0 mF, and 50.0 mF capacitors are connected in series acrb pn9,(lnr.acx)kv, 9 iwywi9oss a 12.0-V battery. What is the potential difference across the 10.0-.wv(ynn, p99c )liabkix,9wrmF 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 0yl5yrz7 2e0 xps(ri2awey)v across a 3.0-V battery. What is the voltage across the 1.0-m 0ripzyr)xlwe(7 2sa 052yyev F 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 batte h/6q9/g88rrkq dczh,2ydbps ry. What is the voltage across the 2.08b9, rqkd/y dq/8sc rz gp2h6h-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 capacitors8ocmm,rycez d9,h kr8d1j-ich, 5f )k are connected in parallel across a 24-V battery. How much energy is storedcc1)8hi8 hozkdek,yjf mrc,- 9 d,r5m 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 thisc/st*si;y 3rs4 x/:/vdmwc h e pair is then connected in seris:r// m; whcs4v 3cy*txde/s ies with a 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 8.00 mF agxrj5kd6 shc 9f-;5isq r(2rz re connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. Wsx- zj h c5rrqk96dr5f; s2g(ihat 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 pv wd )6qalxc4.1rbrvipq4s93arallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. Whatr9cpqvxqws 1464l d.iar 3vb) 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 23 x+.utmnn9 4ubwsu omF and 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitb3uu +9nuost2 .nxw m4or. 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 aco)pd4t, kho: 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 th50z4g,8n pjpu6k wz3awbq+oz rough a $4.0 \times 10^{6} \; \Omega$ resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-MW resistor is connected in series with a 0.50-i(gw,714b n 4qm ( .xewzlfbezmF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the change in voenw (44 g,(mwbq1zz ibfe7xl .ltage 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.6y vsz52xj g2wl/ tm/(kg3xzt It is then connected in series with a 3.0 6z /x t2l2txgm3zswvj(yk/ g 5$M\Omega$ 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 ape/ a2bl9fo9oy4k 6h 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 renol6xvhq1/ 4 :p px9bmsistance 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 resistance x8nvkopnq*frchj n;;c)nv*r ,j7 4d 76s+gi rof 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 9:c; is+k4f8x9nt ay6p k gau8go4tyogdt3r 8a coil resistance 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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