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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 abi 1c,/ 4bc)jytz em:k battery, when no current flows to an external circb)icj 1,/yt zcbke: 4muit, 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 differxr hmf k;23bo0)bp(a lence between the terminals of a battery, when current flows to an external circuit, is refoaf)xp; 2r 3bkl0hm( berred 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 batt9ft 4/blqk. tn1uydcxl hb.w :av6b*6ery

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are coc16 j6gux( /3nq xx4 frjrtxb1nnected 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 b6fjyefsr 0o4+7m(arv .;smb c attery. If the current of 12 A flows from the battery, how much current flows through any one of the resis (s.ormver 4cm7+b 6a;j0f fystors?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistozb1dr0r)pr(dji 0w;z3p4kp dd a0 1csrs are connected in series to a 12-V battery. What is the voltage across any one of the reps0id1kdd )zppb w(cra 40rz0d;1rj3 sistors?

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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 jvm-0yx6byws)70d av voltage source, the power supxv00jbw ds7 ay-)6v ymplied 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 in para9hylk-xik1 *t 3i/j xkllel 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 connectek1a zvnw4wfgh+lbxa w8 8aaw8*h-)i8 d in 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)8llo746eygz: q*s* oxxgrxttk y r;3 battery. What is the se)4 t6t rkygxry 3*:o*xzgl7 oq x;l8voltage 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 thees ,o +v0xel 5k,nr7qe current of klnrv5ee, se +x,q0o7 12 A flows from the battery, how much current flows through any one of the resistors?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lamps in a string of Christmas t4h*ng )osv.iz k8mh+p ree lights are connected in parallel. What happens if one4sz. pi8gh *v )hnomk+ 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 arez,wlwo.a.claha u,y4;2hwpi 2, ru1o added in parallel to a constant voltage source, the power supplied byzy,r1o4lu. c2alo2 whh w wu,a;,ip.a 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. T*kfc36ob+rudua x mt/(cmts2d idn m)o(712che 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 maximumd iu17 c/6 t(d22ox(to* )+nmf3uammbrkscd c 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 junction9o4tq63c6j3w myoest0m+ t p y 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 rudoa2m )dzakbpd; g17acj (;t+le.
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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's loop rulvjg)no,3 nqt 4-eqbq8e is 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 an exaafstj+ .az8( kmple 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 equatio:ondgq i+nf f 40w)vp(ns 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 x7ee*9rixm ezd:7a / y(/izomf y -ky8in series ("+" to "-" to "+" to "-"), and *r yeox7imi7ed y a/z(-e9 8/ky :mzxfplace 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 storaim h i:u9eawkx2-)tsyk a3(x (ge batteries together in series ("+" to "-" to "-" toak(uk2m:y i(xteia3sx9- h w) "+"), and 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 storage batt-onk ;tlkxk4c9v mpf3*nk5;l 62j( slj x pe(xeries together in parallel, and place them in a circuit, the combination will providn;v o6j-kx9 ptj fklkc 4p;(2 xesmkx53l(*l ne

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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 co*vgl wntv.pgqaf -,426 jvv7hnnected in 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, ,zxv 3; t,ca;9ww fqpcg2my +othe equivalent capacitance of the combination increaszwt2xc ,qogf ,pa ;c9m3+wyv; es.

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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 totalok -5ax1a agu+ charge of Q flows from the battery, how much charge does each cag5+1a-uoa xk apacitor 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 capacitqj:rcp73c qjn /3l)ki * tlb(oors 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, rd+qm/a- 6bsythe equivalent capacitance of the combination ims+- qb d/yr6ancreases.

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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 tczddc:x, tkxi59x :a2 o a battery. If a total charge of Q flows from tt2cc 9i,d:dxk ax:5 zxhe 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 quantityp*dci+n d c86s 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 ar tn)5fs;mz j(te ndj;1e connected in series to an ideal battery of constant terminal voltage. At the en zjm tf;tsj) d5;(n1moment 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 arp-psol k*)q :ntksj5, e connected in series to an ideal battery of constant terminal voltage. A*- , kno5pj)slpqks:tt the moment contact is made with 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 connected in series to an ideal battery of constpvd- / w-wb:s/9x(bkb7a scnfant terminal voltage. When this system reacfv/wnxd/-c b:97s(- a bbk pswhes 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 sho0hsb2* sl /y0 jeuei9iuld

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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 ammeterf: s4ixo8;pazlfr h)ou 6-4hr 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 isa*h naptuvk4k+m ;e(* obtained by properly placing an ammeter in a circuit consisting of one resive a*h4*(+u mk;kt anpstor 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 a:qbsoayk (v7 )q9 bjhwnd;-y;n 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 from a galvanometer, one nc0q xvp+b t-dnpzt,pd8.g 3c-ormally 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 voltmeter's series resistancev i7w)icmqkn1 j/sk;4

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A voltage reading is obtained by placing a voltmeter across a resistork+ci v -g zhtk .g,r0+vr83vca. What happens to the total current flowing in the circuit as a result of this acti0 r ik,vgav+.+g8-3hvkrctczon?

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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 voltmeter is place0 :3.v:k fubjpcqg8-o h pszg3d in parallel 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 rgv:.-fc o:kzh33 qs b8 u0ppjgeading, 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 i9fhmk 6r z9:fis wired in series with an ammeter, and a voltmeter is placed in paralle6kmif:f9 zrh 9l 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, 3.0, 5.0. : *j)x +cclhxn1xf)o.o liar, 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, -;-um1fwc8m ii zs)fy and 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, and 6.0 u .u. .blxa.tt$\Omega$ 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 c ;xv i(sffe6b*ombination 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 serieszdt 57bql1 (ai 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 combinat z 2)( lq 1;4wzhjitcyeqw6dd3ion 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 5f ok8v ai2v.za parallel 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 kiye;jp6d gjh*d/ bf wo+1 0l2of 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 circuitf+x3lh ibx93.lo as ;5 c2srpy2 5rlaz: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current would 5; ya.ha3r +i22lf9x5c l oszsbxp3lrthey 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 as7p/j: iakb *light bulbs you can connect in parallel in a 120-V circuit without /7a pjbi s*a:ktripping 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 2.0vl+ f1tilfm53)2zu n c $\Omega$ 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 and7 9sf 1vu. gnp91hz av1)1ii jkswyti1 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 10.0 sd1,0atk6qcyi gc2u cr.c ;h0$\Omega$ 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 and / jjv7.xsu cr,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 ap4;c(nyp) qk jnd 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 and 9.0 1pb8i ab+* acoyy9+8cbfhc .a$\Omega$ 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 t ul8m nv68v/s u*z9aakhe 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 througttjeniio k2+n*s+nj p( 3h/5 th $R_2$, 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 re6i;+ gi8wg m)kid*l pasistance of the circuit in Fig. 19-3?


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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 100 \; V$, what is the voltage across $R_5$ in Fig. 19-3?


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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 4.0 \; V$, what is the current through $R_6$ in Fig. 19-3?


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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determine the current in the5ppbtj.+ ikau6 k +tl2 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 d/ 8ar5 )xrgusc+cf;bthe 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.sx ,d0cdoi+dko3ss: ksp,2- n 19-4, 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 relative to point C in Fif, :cd xqbib*/*ck1dvg. 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 xi88d qerh5lj ciog8sji /3;f,b:k6 bin 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 4g du- kv.99sfa* najrC 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 tnwlh +.8ih qjb,cuz210nh)rin 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 poin3 kl9*2 aossdxf0 u0bwt 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 th5lz v:nq4w5ywj5imp 69lk4 d xe 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 l rxltte4*3.y 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 curren,mlrwq,tr ( .tnb7 ga4t 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 thesi ve d m,a2j5a-p09.m4yvohn 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 *s:9zidb;upri, w )pb x ow8 cz(qcb+,$\Omega$ 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 f1 2 av ms ayq99l).6accenoq+upper left and lower left cor 1m asvc nlq)2e6cof aq9y9+.aners?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 16 mF capacitors are connected in series. The equivalent capacitance *h/zjey9bvlg +7 /e lm/5rffl of this combination ifm7blg elrzh9/*fyj /vl5e+ / s

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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 ar: oiu8 a6kpp56ek q08qzttav:e connected in series across a 12.0-V battery. How much charge is stored in the 5.00-mF ep6v 8 56:tu:azokiqp 8kqat 0capacitor?

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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 capg. ,lrig+)nw w cld1zxn) h.j)dc8l c6acitors are connected in series across a 12.0-V battery. What is the potential difflczl)j .)6x wln+ghgdwr,cin1cd. )8erence 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 : ,pt/rgzw j7ein series across a 3.0-V battery. What is the voltage across the 1gwz r7/ ej,tp:.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 connecte yaboz fo8d+h7u4,g,cuk+ n,t d in series across a 3.0-V battery. What is the voltage across the 2.0-mF capacc+zy fthu8ud o+kg,na o,,74bitor?

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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 connb59t1+ x*fnky v 9qndyy2dg*h ected in parallel across a 24-V battery. How much energy is stored in this combination when the capa bn*5219vd*x +gyqdny9 t fhykcitors 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 pard-p z4x8,l ajgallel, and this pair is then connected in series with a 30-mF capacitor. Wha-, 4jdx 8pglzat 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 parallel. Th.)gfk;vddf5vf3 kmt 3e combination is then connectedtd.dk f;5v)f3m3 k fvg 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 8.00 mF are connected in parallel. )t3)w11 ius d4f1n b3bh pkjpoThe combination is then connected in series with a 12. i1 41)) ph1w3tnpfusjb3obdk0-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 arakt: 2ugm;rkv*fta+i* yh1 0le connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.ym0lfrv a* ta1g+2;khiu :t*k0-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 cha*cyn ft8dem-* +rd fbf6c,)nyrged 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 tukrj;:x 40z77lz0v* mjh -ja2q rajz lo 12 V and 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 h6 db9jyuv v/2ayl *t,ezfi71connected in series with a 0.50-mF capacitor. The capacitor is initiall6ad2t 7y9vhujle /v b z*,1fiyy uncharged. The RC combination is charged by a 9.0-V battery. What is the change in voltage between t = $RC$ and t = $3RC$?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-mF capacitor is charged to 6.0-V. It is then connected in series with a(quq4via*f 1a 3q*(aq 1fvuia4.0 $M\Omega$ 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 9* :.y+jq xdz3ekxgavb0or(: 2g myfwinternal 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 cz +x.7:tlojrb oil 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 internal resistan+fmd-lrl1)d/i6dni v3a u 9 ymce 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 n 8ccg4mxz5(r 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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