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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,ar :gbx qw.*1n d8t/vg when no current flows to an external circuit, is referred to 1vrwg b:q8tna/ g d*x.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 differl(w/p9 0lg4bbq yb2ddence between the terminals of a battery, when current flows to an ext d90g2(ylbp l/4 wbqdbernal circuit, is referred to as the

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected in serijhmht3)1ng,hulsty9w8t jd ;e. 9w g: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 connected in sercl(x y6bxy3s5 b7ito0ies,

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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 ing/ kzzj1hc7 xkg 2ia /xk80nm0 series to a battery. If the current of 12 A flows from the battery, how much xgk/0h/izzank7 cg 0 k1 x82jmcurrent 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 series to a 12-V battery. What is tw b0g/ c05u mv+pskrqq1mae8(he voltage across any one of the resistorsq0 50bae+ /cmumrg1wks (v 8pq?

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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 a s/6c)+84zsjw staib58od ifr dded in series to a constant voltage source, the power supplied by the sourzcsaid5 ftss88j ri46+ow) /bce

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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 connecte )pf 6sezzwt))4rwc/ d01b trd:j(y fdd 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 i4eon3qh - .wocan 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 co +hiz+whs9) v4efk f5onnected in parallel to a 12-V battery. What is the voksfv5 9 fhzh++e) w4ioltage 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 conneju6wgyi ;vx433pkscj:8 ws . zcted in parallel to a battery. If the current of 12 A flows fru ;ijj .s6sx3pwg:ywz 34kv8 com 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 tree lights are connected in pgp lntf:oe mqsu(r6k ;: )e3kv//l sj.arallel. What happens if one lamp burns out? (Assume negligible resistance in the wires leading :ul)kvn 3g/(ko f:pse ;slmteq./rj 6 to the lamps.)

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in parallel to a cu xq0;q58bkcp cmbq-bw72.e monstant voltage source, the power sueq27wm8 kb pbq;-c0q bxuc.m5pplied 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 /rs* rla, pi ,:tl)zj 1;1evc yojfuk*R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected in parallel with these two. What is the maximum power this network can dissipate?lu:jzirpjkv c,/f;t s)1ly *o*r, e1 a

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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 r8 8 ;pek.eswlbule.
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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 rullf i7n/g2t 4ote.
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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 ex1mib 3ir-3p.n 7sg gqoample 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 example ofah- 6h4m.stw c gxsnt:-ob 9a9

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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 i3iprkh,: s7w hs 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 identical9 f,;i(wr3 mi bhwuo rw2 x44q/0zyoxt storage batteries together in series ("+" to "-" to "+" to "-"), and place them in a circuit, the combinatio xfxmorwhi0zqbr9y4;2t/wio u4(3 w,n 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 stor3ipo r 9 jhaz7 ohw9oidl-)fy554 q+u9ihwk6nage batteries together in series ("+" to "-" to "-" to "+"), and placea+ 7iyofhrwujhi6lw 5 )4 5o-3kz9ndhp 9oqi9 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 battepf8p /fn+ b q7+lzx k*k/*a jvxaj0x3nries together in parallel, and place them in a circuit, the combination will fv** jpb/x+k/z3+x7 a8 nxn lpakj0fqprovide

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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) 2g))0puo -od pli,o2muy dya. bew1a 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 cap3flz)n8tk e 0jacitance of the combination 0f3e 8jtl )nkzincreases.

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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 battervg559a1 rf1olbt0 lsgy. If a total charge of Q floga1vsl 059obg5 tfrl 1ws from the battery, how much charge does each capacitor carry?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in parallel to xol8bl ;l /+qya 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 equiva xfm0g-56rxn ilent capacitance of the combination increasn fm5r 06-gixxes.

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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 connecte o kdses4yh+46k/s :xfd in parallel to a battery. If a total charge of Q flows from:4k4ds6+ky ssxefho / 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 quant0* hy: ww2/(pmtycd2xafxnt( ity RC?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal bab;14:yaxoozs9 zk+ bg*ys qorzkm*(( ttery of constant terminal voltage. At the moment contact is made with the boza zygo*ko+9:bz4(y xs;r* s(1mqkbattery, 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. s(h1igl3f uk connected in series to an ideal battery of constant terminal voltage. At the moment sh ui3 gf1.(klcontact 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 arf(gy w nz1 iedmj ts qpo7mrfj2w;*)i9t+ j;+8e connected in series to an ideal battery of constant tes1 tdq8(+ jz fygef;;+9*ji)m7j twwpoi2 mrnrminal 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 sho g. mpg/fsv99w0 ofwot7;zv h;uld

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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 amf/ee/4rm4 aj: z oczq-meter 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 prox au:1p),le t.wnrmb lo3*d c)perly placing an ammeter in a circuit consisting of one resistor and one battery. As a result :, lr*e)3d umwn.alcpbo1x)t,

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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*ga*cvd i+8e gt-;z ou 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 voltmetuk .4xil y99lvv36ehwer 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 voltmeter's seriy -d.x stx.nw 3/xdyv-es 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 25ck utcoz9*hx lg h2,a voltmeter across a resistor. What happc,lk9hog5u h2 xz*t2cens to 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 wired in jm*m,n e*lo+j 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 battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammjmj+omle* * ,neter 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 placajf2, j xr+37nq2c/ adkx;9k vnxu lt0ed in pa;jx/3n72v +kx0lk r ft29aq,unjcxdarallel 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, aya;ahq vn l4-1nd 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 flwcy3(h,.mfpr 4 ra*kc ,h8d 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, e* vy)pvfe. /nand 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 combinatioaho / tcy6n9d64 hqo0sn 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 combinationqu2 pnr5ixe9 +8i/q. 2pd )pf zzb9hcc 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 com 7srph 1,,1glaty1 cr7xqux- gbination 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 combinatio8ocyyx:rr5x 9l *c5 kun 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 4.0a04y ;f 8tz4gq8 wwgtz $\Omega$, 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 app i;/ qwz+qs9 m )wdxuwsro06mk 0g0lw4liances are connected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated atu; qsmgx400k)9 /wldwiwr 0+z6oqws m 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 numbenq q3 (o+ow u(zbk61,lgh* nyer of 100-W light bulbs you can connect in parallel in a 120-V circuit without tripping a 20-A cioqkln( h gz36o, +ye* qb1nuw(rcuit 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 b;n ut j.8knf. 5uw5r7q+*a +ogz:uw+kq dekd$\Omega$ 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 3 l.f1 3z;gzyi rc7p-bs0 $\Omega$ 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/xf 7piyr7fqa 5fk0rwhu3 7 paqa242 y, 6.0, and 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 and 9.eqaan/69humo) n g)/y 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.m8,l9lhisy3l 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 9ns3 4 oqsdqljoox-f.ay m4(s5z6 x.-r .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 circuit g,cgm kw+;x82ggh*v rin 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 throughwi4dj4 w i9l(d .bcem/ $R_2$, 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 j 4weig4thr;/qw1n*)+lj.r5unf x ykFig. 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. 8hue4 be tgv;819-4, determine the current in the 1 $\Omega$ resistor.


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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in F* k -fhg9ljko q0 kd6)oww7ya9ig. 19-4, 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 curre.a -cs f6knz9ont 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 relati ifs *8l*5l2jcf v3cprve 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.hwl.zq- *dhk4piu(y.1 + cwyi 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 oqs7sf1tjaue.g 3-g0 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. 1s q18s x,ogt6w9-5?


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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potentiay4g nyhl -klr .fd;.;pl drop 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 current in the d1z 9scg/gl k1dj8)z1i9r cec7 $\Omega$ 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 moxo2 /r4hq/ b8 $\Omega$ 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 ts0.v6qtzv 8 (s rd x1hi/ent1she 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 12 t w/i wtrh8 3n ):vmt8c2mpl5z$\Omega$ 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 tr bqf sxov,1guc)d 6:8he 18 $\Omega$ 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 lower lefy+zbrf2ho/oav (l(c75d5fr yt coo+c5r5y/(2fl bof d hyr(av7zrners?

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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 equivy( kbs6uhc(z9alent capacitance of this combinahskz69 u( ycb(tion 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 sei hqni 9j. t)u w 1)6se1+slq;z*0tx-pee bwgmries across a 12.0-V battery. How much charge is stored in the 5.00-mF capauwgsltn0 s.q-* e exeq9w) bi+)ti6p j;mh z11citor?

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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 coe)(v;zv+n c gxnnected in series across a 12.0-V battery. What is the potential differenc xv +vcz(neg;)e 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 capa +brlwn :qjt;+citor are connected in series across a 3.0-V battery. What is the vwbj qlrt ;+:+noltage 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 in series acrossvp93x70io spzn6bf:e 4+seph a 3.0-V battery. Wha 37:hv+ossb09p4eex6fnp zi p t 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 mFf ng1 mqn4et3a1ty x.) capacitors are connected in parallel across a 24-V battery. How much energy is stored in thinqg e3m .1x1nf tta)y4s 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 conneccbnn h *f7/h j:w)8 nk(ohzjx6ted in parallel, and this pair is then connected in series with a 30-mF capacitor. What is the equw (b7jnxc h: kn/)h h*zn86ojfivalent 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. The combwm/ *fommd6r+ ination is then connected in series with a 12.0-V battery and a 14.0-mF capacitof6rmo w+ md/m*r. 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 pa0smc dsk1cp1, qn(;bv4o*7fwwnc y8 arallel. The combination is then connected in series with a 12.0nfpd0 a1cob wm* ; qvcc,k 4s81y7(wns-V battery and a 14.0-mF capacitor. What is the charge on the 6.00-mF capacitor?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connected in parallel. Thfcqg 346ar*7g*uxqrv.l 9rp3qa + cbse combination is then connected in series with a 12.0-V battery and a 1lu xb4c*r+q3 s r qqcp37g9 *a.fva6gr4.0-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 throug-9y d j/g1rcq.l mxg 3y)d9baih a 50 $k\Omega$ resistor. How long does it take for the capacitor to reach 90% of full charge?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged to 12 V and then dischs m(a:n c-k+ l(o3u0ye7jjndjarged 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 serieeti,4 s xo/gwm,;,u:luv-c q ds with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is t4e lxdgw,o,:i u-tsq/u;mcv , he 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;qamq4e7 mg7 s charged to 6.0-V. It is then connected in series with a 3.mqa ms;47egq 70 $M\Omega$ 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 resistanypi c *(s(znk88zux o(ce 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 resistance of hoc f 6 75bq7c,l gyeexq/+j9;z j+mwz24.0 $\Omega$. 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 inte(b0f;4iw(/tro mj j ebrnal 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 resistance of 40. r2/ *krssc0kj0 $\Omega$ 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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