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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 current flo4nmi ua77bllhd++yp; oq)o6ows to an external circuit, is refeub a7q+h7po;+loo) lnd6 4yimrred 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 te e1e3gm (12f em.ydmz,fu7+tlipp n 8urminals of a battery, when current flows to an external circuit, iy 13 d28u (me.en7muif,mp ft+e1pgzls 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 serik pqvit2p;8(e es 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 connectrj 3 z 9of73yju eu:jr6o +yjxk4naw4/ed 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 battkx nk,-fv(f os gv,;2nery. If the current of 12 A flows from the battery, how much current flows through any one ofv o,kvgxnf( sf-k 2;,n 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 sks +,i0oz lw*ieries to a 12-V battery. What is the voltage across any one of the resz *w+o0i ,liskistors?

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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, th djau2uvpo5g06 fj4tr6 dy493tl i2);t of bdke power supplied by the soukfupt6 dyg3j0j 6to f594id2 4o2;rtua) dbvlrce

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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 m qx,:eti3aqd2;a p f)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, ws46yg cm ibks79oao u,17uj,f e 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 5ub s.l p13dob*ek2uj are connected in parallel to a 12-V battery. What is the voltage of any one of theo 3su.*ul ebkp1bd5j2 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 i3o.o 6/ecmyq o aiam*.n parallel to a battery. If the current of 12 A flows from the battery, how much m y. caoiam6e/q .3*oocurrent 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 parallel. Wh*wv8e bji .qvi(+ vc- 8p3lzb.g kkea.at happep v88kz*.eik.ae-3l +(qvji vbwgb. cns 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 pa o4sjr,xn6s9 irallel to a constant voltage source, the power s 9s64rjoin ,xsupplied by 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 ident3q3gu/f) w2dpzw iyf/ ical resistors, each of resistance R. The maximum power each can dissipaty/23dp/fw w3gzi)uf qe 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 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 rulnzx-bq9g, v.k e.
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's lo2iyvmer9ne0+ 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 is an exam4 9f54q4.xlhqp uqui jple 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 5r7u9ye h 16yu .kdyzb:8p4x;xsntd ris 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 jpb1dx14jga1 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 storwdja32p b ,un)-mfmb* age batteries together in series ("+" to "-" to "+" to "-"), and place them in a circuit, tj-m ,pd32*mw)bauf b nhe 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 ide8ve5 g0(kusq45 :ae mmb4 1i0g dhodkjntical storage batteries together in series ("+" to "-" to "-" to "+"), and place themuk(e0jkgogieqm4mb84h d vs1a: 50 d5 in a circuit, the combination will provide

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together s*w -xlspg2a. e ls)45nqkw .yin parallel, and place them in a circuit, the l-e4 .gls.xpawysw2kn *5s)q 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 bal5i o81s/oehkf80j.sf :o nu dttery,

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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 d fa4wea tg.,g)(ik d.capacitance of the combfa..kg4,) (aedgdit wination increases.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connected jmbs7yk08b:(o.dc +y rswd ..ff 1mb;xyn /qu in series to a battery. If a total charge of Q flows from the battery, how much charge dm syr(dfw ;:1ub+n.8q sy/ o 0dy.bcjk.fx7 mboes 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 parallel to a batteetwa ;w0g6j8w ry,

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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 connect8y l2wgz.,1 lc or,tqoed in parallel, the equivalent capacitance of the combination increaqor21 tlc8,wl gzoy .,ses.

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connected in parallel to a batt 2lso6ec9 0abxery. If a total charge of Q flows from the battery, how much charge does each ccso9b 0 ex6l2aapacitor 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 quantity d47k*w se/afz(lk gv7l :a y jc(b1y4lRC?

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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 ideo4 cie31. e.yagp/8jokl:gr nal battery of constant terminal voltage. At the moment contact is made with the battery, the voltager3gocepny o8k.1:g a./je4l i 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 i f*, s28eqzdd-uyn sr.deal battery of constant terminal voltage. At the moment contact is made with the sz.-,dy rfqne* 2dus8 battery, the voltage across the resistor is

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an bofe*v 2zy6 ri *xdrz8v9/d0fideal battery of constant terminal voltage. When this system reaches its steady-state, the voltage across y r*vfbdv*6zf2rxe809z o /i dthe 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 shouhra,ra; z 2/dk6-fnbw ld

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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 a+:stqw+ qsqjk4s6d q+ n ammeter 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 iv9zj : in+/zapo)qfb5n a circuit consisting of onep 5)9+baqfoi: z/nj vz 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 of an ammeter's shunt resistanf;wt 5(v1kezq:t9 k2+fjzj cb5*he ;hixf)gace

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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 would m/xdj0ja.ek ,

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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 seriesdd qe9h 8:oxn5l0r2m e 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 voltmet,qit52d i65kq cz,u yeer across a resistor. What happens t, ciu,kq zt6yq52ie d5o the total current flowing in the circuit as a result of this action?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wireqblxcgo.;tk *18xkswht/ 2; 0gw xi2e 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 bigotq8w2 ;./l*xk1k;hxe gx 2b0wstc attery. 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, .2x7p/, jedbbhjv tl) and a voltmeter is placed in parallel across the resistor only. This network is thext2 j)p7vbj./h edbl,n 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, 3.0, 5.0, and 4.0 kxb 79;:nd y9w c3uszg$\Omega$ 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, an:jqo16wx je gu ic41o)d 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, a77h9v:jp.m8 8j, alah hgmofynd 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 a0-y(zkcu i kq7na1ev7 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 cuwq( zxy1 x ((k9 2p6impjdp5yombination 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 afkxzvwd c . row5t (l9*34n)fk parallel combination of 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 12 $\Omega$ resistor?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combination of6cc d16q irbw+st) 6gx 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 paral-ng;v+ef( zuw lel combination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistor. What current flows through the 4.0 $\Omega$ resistor?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0 $\Omega$ and a 12 $\Omega$ resistor are connected in parallel to a 36-V battery. What power is dissipated by the 6.0 $\Omega$ resistor?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The following three appliances are connected to a 120-V circuitx mhm+)vgu9fpwx .,+i: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the .gpfvmui xx++m,wh 9) 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 connecttcr9 ujnbj-ob7n;uxww f7n.1ro d;5 ) in parallel in a 120-V circuit with fx7rnb;juj.n-wbn rwc9t ;17 5 oud)oout 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 x tfks.4z*tq peh3zec6 g42n($\Omega$ 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 anwym/pa5*o3ia-e:mif y (rdn -d 30 $\Omega$ are connected in parallel. If the combination is connected in series with a 9.0-V battery and a 20 $\Omega$ resistor, what is the current through the 15 $\Omega$ resistor?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 4.0, 6.0, and 10.0ex znwsx2 tf(d/ :.7,frprpo 1 $\Omega$ 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 an6 .iq/+n(1wmf gkgr+y1gresn 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 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 a 44lw1hdla8 diu )m3qsnd 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 and9- -r;ulht-fm r bgqq0gq-0sm+rzs u0 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 res 49rbpa3yct0bk4h )9ij z/dglistance 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 throuxkmcvcow 6k t +.8/u-dgh $R_2$, 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 0)zq0x;wp xudsvag37 (,vs h5zprc/ycircuit 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 currenh qqkq4,(a byh4m9hux x/(f2 yt 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, djqt hfy-4qd0nr/q 2vw 99m- wykb4 c+setermine 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. 19-45pg av4cha5j :b +s:cv, 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 point A relataz4 we399ip*9sl; p*riaih sjive 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 klcafz 3i2 g47relative 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 po 16;fb8yw0,xqeqhnpsm)f pn 6int 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 ba 0xx*.qbe0hgo2.c/ jidxlh1o ttery 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 drdcg. 0d-jx lo/ hp7 yj3xx5ry1op from 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 currentr,lwu(9dc,rvy:;kf*4 h bnckff 27qe 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 currentbf24 ca0w .6u qrftfxb9hr 6m, 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.:z3 lg c-oib21ndh8zm u)5xesllv8t 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 hdz(, )sbst a)5t8dj v ,8vpc*t tq(uv12 $\Omega$ 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 18o1 nq234abw wv ig9.gs $\Omega$ 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 s8tn8qv3i g7x0s4w rnrf9;f j connecting the upper left and lower left corner;x r0f7j94nnvw8i3g ft8rqs ss?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 16 mF capacitortztv b7gn6hs+dl90h 4 z+r a*hs are connected in series. The equivalent capacitance of this combinath4b+ tzd ls9nv6h 7h +0zg*ration 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 con ;q ,kal+pq6q n7mb+unu+4kaf nected in series across a 12.0-V battery. How much charge is stored in the 5fqu+kn qan 7uqkab +,4l; +6pm.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 connecno mmpx4muq87 c* f8t)wax pmbr,be,+ a:3: wxted in series across a 12.0-V battery. What is the p xw, :qm*mbm:mu)8 wf4a+7p tonpar x38cex,botential 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 across a 3.0-V wqwh 0wy7z,+xbattery. What is the voltw7w+ ,hxqwz0 yage 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 iz,/sq6sm-(e worxdm s 51gf5c n series across a 3.0-V battery. What is the vocswzm(65fsmor-dq/gsx1 ,e 5 ltage 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;q9sg oed: r,i are connected in parallel across a 24-V battery. How much energy is :9 o;egrqdi s,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 thibi4ya-i mgn-t v- yq9b)d ;6ojs pair is then connected in series with a 30-mF capgnym6ov- tayii-bj4- b9q;d)acitor. 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 ,;f1ha-jin zllx- i q0mF 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 capacitor. What is the equivalent canill,0-f -qzih1j x ;apacitance?

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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.ze w,6qykq -8) u:snq .ung5.vl ulio300 mF are connected in parallel. The combination i-q6 ouv l3uslk). iq.,5qz :weyunng8s then 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 connectruoa9 vi3 8sgfr6( ,,bekpp* yed in parallel. The combination is then connected in segi bku o 9arvyp,6sp(38ef ,r*ries with a 12.0-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 txj n((2ck+0w v lty r*v,eec.qhrough 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 thim i)sv5(a vs4en discharged through a $4.0 \times 10^{6} \; \Omega$ resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-MW resistor is connected in series with a 0.50-mF ceivg;e6yh48-7 v ad fwapacitor. The capacitor is initially uncharged. The RC com;h fd gy v76awe4iv-8ebination 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. sx xy6stsz 8i4kp4.2r It is then connected in series with a 3sy8 44xp2sist6. zkrx.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 resistancufe k i0 86gy;kid,f eg6)jl7ce 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 wik:emte-r*t i 9th 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 internal resistance)6q q:k41 o3j)lydl+n*rhbfky ;onmi of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to 400 mV?

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102#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer with a coil resistance of 4t e/mj ov(7jl-0.0 $\Omega$ 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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