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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 currenn8os).2*eq;ywaxtu x t flows to an external circuit, is referre.s2 xeq) 8yutnxoa;w* d to as the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference between the ter o(58kw5 jwtkt(hk tcsq+4brgi. )kp9 minals of a battery, when current flows to an external circuit, is referred8+w5 (4 kkttr wgqk.os(c)j5hbikt 9p 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 conkqnv 8 5p9q.ydnected in series to a battery

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected in seriesp x2,.8;shhl(ui .pobu2pf sr,

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resisto 7hcx48b 28cqa(so xo3knq0rers are connected in series to a battery. If the current of 12 A flows from the battery, how much current c3bq0x47soo cxaq k ne8(8rh2flows 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 conne -irx(j 1 ;vgeo:q4makcted in series to a 12-V battery. What is the voltage acros(q1 kajgor4:xi- vm ;es 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(m,7:wukhsx lji vo,* constant voltage source, the power suppl*h, jxvm7 uwk ,is(o:lied 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 conkjyhep+ ;mvy9v4dnj-df( h ,1nected in 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 in parallel, we c7rj) 6swj wq+j9n)ne-os8 per)udkd. an 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. What (j/t,95dddxwvu ti3)7s djvtis the v5 v(t9j d/)tjxdvtd7,u 3wisd 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 t,fpeo*8y9 rh s+9iez qo a battery. If the current of 12 A flows from the battery, how much current flows through any one of thi+pe 8 os*9yefz9 rh,qe 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 t;h2j27 xk4w.ixeqm 2schi9 nax,f ,paree lights are connected in parallel. What hapwx e ix22hns7h j2qf i,a4,.kpaxcm9; pens 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 inf 0.*a2q0w +zpk6teutfq x/ql parallel to a constant voltage source, the power su q.tq wu+qk6x*2p0z/faelt0 fpplied 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 identical resistors, each of resistance R. The maxyl)0 s3)vxll :vtv5-y6oz ijaq:l z 5kimum power each can dissipate is P. Two of the resistors are connectevlxjl5iyt 5 q):3o0z6vlly :)va-sk zd 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 r2kq/ f z(lw7lpa(tu,gt d3 vvpb*cw45ule.
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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 rulewv4n vsok)1 66wz8pv9fsy h 9wc7 kcf:s,2frj.
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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 b)u ,jj)11*damb , 2n ohl bd 8jl(dcxoohj*o1an 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 rulcfs 96p nx:pfh f 0cy-g9ehr1ivn, 4x+e is 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 foyq ut* 8q c;y 07g/h/dc0 qsghd.ojwa3u/y6chr 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 ("+; vb)*si7y.c k jujo.j" to "-" to "+" to "-"), and pki.7sbj.o) yj; uvjc* 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 o04x ,ue;k i:en6:mem* tgpr1p g8iab in series ("+" to "-" to "-" to "+"), and place them in a circuit, the combination i x,m64;g uepnt1a*r :meg:0k8poebi 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 in parallel, at zo1durilu 2qe qgci/) y0f-zy n(1,)nd place them in0fyn/u-1ui 2)zq)gl teqd,cr1o(y i z a circuit, the combination will provide

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in series to a batter7rvbr 4ftaanp9y4m )-y,

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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 capacitanc gzofy6) hj6u*8(wtpul 39sv /(qyuere of the coejz wupu l(syh8(t*fv6ug/ r y qo)369mbination increases.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacirxi+.8uv3 :9fnx sh7rkc i*qjtors are connected in series to a battery. If a total charge of Q flows from the battery, how much charge x.curxijn7+: h 8qs *v3 i9kfrdoes 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 capasmq)5z1i2 jz acitors 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 c n 3z+e*f.i0 pyfh;owjonnected in parallel, the equivalent capacitance jf+ z3yp;* hefnoi0.wof 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 ( )jxb blx,iu7are connected in parallel to a battery. If a total charge of Q flows from the battery, how much charge doi xulbb(,7 )jxes 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 quaf-ha)enze:6x. jvl cz9v f5q (ntity 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 ilt:4wjl bgwi+xss+ouk :n3.7 deal battery of constant terminal voltage. At the 7gkwut+l:bss+ nl43x:oi .wj 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 consm3 qq5z /v(2o nyz5glptant terminal voltage. At the moment contact is made withv(q 255l3zzygm/ po qn the 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 g gfvr(mqm. ;wj1)d7 pconnected in series to an ideal battery of constantf7; j m(g)wmqv.dg1p r terminal voltage. When this system reaches 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 shoul gg.vvt+qo3392 lbw8i ,p uxifd

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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, f+ik1i7 b ys3p.( qkuhtvf8m 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 plac0: yze4bscqdw y2 5v5sing an ammeter in a circuit consisting of one resistor and one battery. As asd5bc5:0vywq2z e4s y 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 resist nc06 pe9clug+ance

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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 azhe0bjcfi52m4bm66ts r xup+*3*g xv voltmeter 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 resistance of a voltmetezjl6q)qcr56b wj *czl71 0kjr r'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 plai zf(mkl .an3 m9;qb*dx* y(ydcing a voltmeter across a resistor. What happens to the total current flowing.*ym* nf3( b kdi;mzx(a9d qyl 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 ammeter, andl,b tuli+c 5-r .4vla-i7cjku a voltmeter is placed in parallrb7lluv-5 -i ,.4c i+kactjluel across both the resistor and the ammeter. This network is then placed across a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the 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 place/9 7tp rhfwskii1hyt5y3o:5a d in parallel across the resistor only. This network is then connectehpr athfiy:w 3 io559k/sy7 t1d 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, a8(ibsnmm 8i hzm5o73 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 6j-q7 m))kqpsx 7bjd/m .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, and t9j0 v.0ndvwz6.0 $\Omega$ 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 int 5.5r7e,audvsny yc;be 06tzso a series combination of a 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 4.0 $\Omega$ resistor?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination of axx3crk,kd*. dpbp(sa 9cd3z4 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 4p(zh b2gny hj:/;ejv+ .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 combinatioz ys00nt fc 3 1/e09ajmubf0ab fy*6zrn 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 combqljj*b xf-ewct1, c z4bm9 *;fination 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 circu*lptch pr38e-nc n1o5it: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current would thepth8pnno 5r 3cec- l*1y 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 ggf7j- bu).uf can connect in parallel in a 120-V circuit without.-jf7 bufu )gg 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 az i4ugq..ns.$\Omega$ 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 30 cqpwu46axl( *)ttto ($\Omega$ 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, an4 vcy mts 30l21qkgdd,d 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 anrrnen*.5ynkewi,/pbn-goq l-1*/ i j 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 ansa2)s y tap 8 7a0uirze7zwa:)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 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 5.0jgkb 3e ectabx06-,i0 8fyn-f 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 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 cirkz3fvag3h .; wcuit 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 through wk u.hw 4n89z62ql ,*nugbcqt$R_2$, 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. 19-3? xmc)p *q (/cqq


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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 currenrmbk2sh+ q)mok) cvrod + 252nt 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. 19-4grgc*./7-nt nx2vpjt , determine the current in the 3 $\Omega$ resistor.


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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determine the cvxlk/y e2*w( aurrent 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 to point C in Fig. 7aji ),(thnib g:4uqs19-5?


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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 relatz )rrao6//0aoo2*kwgj8 vtqpp5qg a9ive 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 tor*r).4u go0imz*wp;aix8 k ux 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 1 kto. z*ljp8+3rem4ofe5upvbattery 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 point7jn/ 4suzt3au A to point B in Fig. 19-5?


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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in t )oa p)q u;0:,wfsst7ees2d ,mq(cgtche 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 jh )4pfr oi q;yvj+n.,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,;*9;vo 2okolfrv q.vf2v fmq 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 thb39xke3 rl/4 u vp3mvve 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 18 m (ip 18qenuv;abz*b,knm3y tj;2l; t $\Omega$ resistor in Fig. 19-7?


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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the solid wire connecting the upper left and j ,ulv *4g*q-hi lpz4elower left corngz4i-*,ej hllu*vq 4pers?

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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 seri3vn xap; ebdy 6+hqu.a y u8cw,8*h3apes. The equivalent capacitance of thi8wav p;p yc udy+ebu n*.3ha8qha 6,x3s 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 capacitoruoci 0+ nu 7z fz*yc:d.a-jjh4s are connected in series across a 12.0-V battery. How much charge is store+ j.j auhuzfyz:7- *d40io ccnd 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 c:digt/u7 1a)iz h gyd*ncw2zkf-8n n(onnected in series across a 12.0-V batt -ku8nzngnhfii/ *71) adg2:(zwct dyery. What is 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 capacitor are co, lidyqv:)wp +nnected in series across a 3.0-V battery. What is the voltage across the 1.0-mF capa) vy, iwdqlp:+citor?

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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 b bt5c hcasljv8k0 6t0(attery. 5(kjsblt6 t80acvc0 hWhat is the 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 capacito(:73 - ym n.hud,6zc 9ac65monainwnjaa.ewp rs are connected in parallel across a 24-V battery. How much energy is stored in this combination when the capacitors are fulwcu , 7nnn.5e m3 (-.c6nyphwmiz a9aaoj a:6dly 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 fxn -3azqg u iw,6 gma(70xdx220 mF are connected in parallel, and this pair is then connected in series with a 30-mF capacitor. Wha-,63u af7xwx g g0z2d(iqaxmnt 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 paralle;fri wdd ;4,)r u7m)s2b0 qo cwidplu,l. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacuo p;l r)2,ud,iw;mw07d4)d b qsfc riitor. 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 connectedx1u2qck ;qh +d in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the charg q;1+ kc2uxqhde 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.p)h,a sjqp )f)- mili0 The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. Whamipi 0,) -)flqjsa) hpt 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 thr1tdc2.o9m hrv3-hrgrough 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 andtbj 6kafvy0*iy 32xe + then 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 0ta ktgd wn5-i4m -hs:1.50-mF capacitor. The capacitor is initially uncharged. t1n5 ask4h d:wt- igm-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 connected i2vj)mh5kp- yf xo e8i9n series with a 3.kv9eo fi)m8-jhp52xy 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 resistzb x/u86n o/u+ koe8hnhe3. xdance 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 wit a3)f*s tl- x*l--ux9*i) lytqdiyyvch 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 a/ c vt;oi*eou-2hhgb- n internal resistance of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a 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 resisi*:,fa4 nf- l :pqlhnitance 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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