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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 curreie wmawuz58skhu iy9iv+5w 2(8w0n6q-e . gelnt flolq zn+w6ukei9.a5 iwmhw2se(g5 8i0veu8 y -w ws to an external circuit, is referred to as the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference between the terminals of a battery, when current.+w zn-0l 5ut1oj mipb flows to an external circ n.izwm0b+ uo51j-tpluit, 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 series to a bag5:xrwol ko13/(wfd : mpi3b ettery

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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 jr34 /dn7rxen 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 w2rr z:z *8t0emc se;eo2o 5piv2nn+mtsu h,5series to a battery. If the current of 12 A flows from thoz8 mn2etmir;uns5 v+ ewpo:c *0 h2z2 sre,5te battery, how much current flows through any one of the resistors?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in series to a 12-V d o z,sqc2c1sk ubfjn306gy+9battery. What is the voltage across any one ofgf9 zqb36s2 jo,dc sknu+1cy0 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 arerwi:2x)r: fuzwtrb) 0wc s,u5ij8 xi. added in series to a constant voltage source, the power supplied by the) 2f:w. r sxxzr)jrii0tiu5c:8u,ww b 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 parallel toudu +/ohhdz va.kn8ywn3 9 p16 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 ggm-ls :i i5ty/m *z,din 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 connecteyg.xw44 jaf g*d in parallel to a 12-V battery. What is the voltage of any one of*j . xggafy4w4 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 pawwsrs0r+ +jz; rallel to a battery. If the current of 12 A flows from the battery, how much current flows through any r0rzs+swj+w ; 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 Ch nl/o .mo:*fuhristmas tree lights are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wirefmo:/.l nou h*s 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 kygv pbipq64b990,rb added in parallel to a constant voltage source, the power supplied by9,kp9b64v y q bpgbi0r 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 identezn;.gj /d;bvical resistors, each of resistance R. The maximum power each can dissipate is P. Twd; v; ez.n/gbjo 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 ruf hp k.q1kw*a8le.
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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 rulpp v,m7 ;/k4pn(pz blq11 olg3ndjv, ue.
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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 exa4q*cbuy.6uij,hkux2 --h qf oh6 ar0ample 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 rp8c abh .hqy t+q4d*ib:) 2tbaule 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 ish pmjxxg0y s2osy vobk:1aie e4:76,/ 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 storagei(3zs9e345nmwz m(ome m gyj * batteries together in series ("+" to "-" to "+" to "-"), and plazo5zem*imnw(3 9j3ym(g 4mse ce 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 in series ("+" to "ze84rxeb8 e0zvt4d /s vki4g,0g x5 ju-" to "-" to "+"), and place them in a circuit, the combination willu5z0b iks4,/v8dxg tjx 0vrg4 4ez8ee 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 tm1a3mt1su kj +ogether in parallel, and place them in a circuit, the combinatiou13t a +mmj1ksn 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 connect bq mh2-q(0h8qa8sd4r uya-iwed 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 connectedb*w jzu on.ncpb,0n1 i co x g+c99dktq//9or0 in series, the equivalent capacitance of the combination increases.n * 90zbc0uono ,qd9ntob+gp /r 9 c1ikwx.jc/

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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,4fby lwev6*scr3q *pm( t/3ncx 6hkd a battery. If a total charge of Q flows from the batterye4 tq*rk6cld*,xwy(6 vsn m3b3f/h pc, how much charge does each capacitor carry?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capaci- es d.t fsv+ir)a 7gx8.:n -9qbwugvktors 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 sfoy4bbz45a. are connected in parallel, the equivalent capacitance of the combination4z yfb45sao b. 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 a.8h.ko, igz ufu9p1 9c-njzkwre connected in parallel to a battery. If a total charge of Q flows from the battery, how much charge do g.8u kfnhj9kc1 9 -pwzz,.iuoes 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 quantis5 hs,s7ink u,ty 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 w)4i euo7v:xo to an ideal battery of constant terminal voltage. At the mo4) ex:v7 iouowment 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 l4ntiqa)w 1* g0sud o(so 4g(r vn;(klare connected in series to an ideal battery of constant terminal voltage. ()agro*k40o;ng udv(sl s(4nlt1qwi At 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 consta* k vt k 5uf53xirhjx1r 51xyw274ovztnt termini57tzfrxkv5 * w4hr 11 yux5t2xv3ojk al 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:swk 8ng x/jig7 lhn701tc6ycd

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer can be converted to an ammeter by the addit4enr4kh; z gf0ion 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 placi.a qlv32h y+pdng an ammeter in a circuit consistdhp+2 q.a yl3ving of one resistor and one battery. As a result,

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Decreasing the resistance of anue4/*n31,(dzoj ef b6m dnikv 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 voltmeterxfkxyt4v 5h vx94*3v+0ufcdh 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 series resiwkus6w q9meq47 *gt/ostance

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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 placingsm,:8ebllon hqpxim6 w 6q4-/ a voltmeter across a resistor. What happens to the total current flowing in the circuit aso :b6n-lipe l4m 6qhw,sxq8m/ 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, a .msx: laktp,: 37kcyvnd 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 7x,kklmv: c.3saty p: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 pld-dht0.hqi w9 aced in parallel across the resistor only. This network is tqhi0hdt.w9 -d hen 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, any8dv99d f rhws;f7;a*f bf,nud 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 1p es9lf 2y0po*c;fv-w 2, 12, 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 6oo-20 bbsv uz9 b:871p plrhfg.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 oxelb8 p7d7-wwh1574 x-sd5fzpqju6 jz ty (yinto 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 a 3.0 -se/z,h-j w a0rk:dma$\Omega$ 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 combindp lt:e0dr 9(anu8)c fation 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 paralle ,:4;d w9i4wuka*wpmmgv a 7mcl combination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 6.0 $\Omega$ resistor?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combination of - k(el eu *lv3vy90nbqa 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-V1dkg 97ouayi1 circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current would t7y uk 91dio1aghey 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 c a+gxpws(7 n+aeb4ok, onnect in parallel in a 120-V circuit without tripping a 20-A circuit bre as,x+bwn agk+o7p4e (aker?

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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 kns )4qgjm;j2ox u8)n uzy7+l$\Omega$ 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 30lg zi76j1; jujzymf)* $\Omega$ 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 1c 1y l oekuap8)r2y i/s3)4vz fli.4lj0.0 $\Omega$ 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 a *;bjniie/pl1l,9xcd nd 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 ananh *xai/7exbjl nl7+ u f:-,pd 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 at:7rdkf me;(/bo 0gghnd 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 x8k;7y t v2al1+-)trq 7qutypbffkh+lc8e+x 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 througzk ig;s(f1;ouw 2m:b uh $R_2$, 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 ci k j0wwo(b1;zqfz 9cf;rcuit 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, determine16kuz (xkcx y8jm9 7 pe0nys1t 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 Fig. 19-4, determine the currentwx qqh (i;3- sruarv+, 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 Figedmm mz. ;iv c 0r5e,f5la:9ah. 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 6 9*1vnloueqk 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 r )+3dhoeqyrtg49g;bppbwe* 8elative 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 to pohek8 olvqb6o-6ggw)(int 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 inyyidu6*z pvrq d 175m; 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 point A to point B in Fig. 19-5?+oz4o :5 r ct iufxozpc2658hl


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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 7 uezck 2iz z2(a)ckmg, d3 ei40$\Omega$ 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 currenk99mg(/b b 8huonnl, tt 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 /as; nvm2 -fkqx 9wrtv(h6/czthe 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 ;cngm.3sfrm,e p+( zt the 12 $\Omega$ resistor in Fig. 19-7?


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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows its(/bsttn0 2 mr0uc* tn the 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 loq2 ppe-:tb6x ewer left co6e-x bq2:e ptprners?

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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 ofyelw7g6-n3 untcz 20/q2jnt8 aivy g7 thai2gut3jwvq7 yl /-ntz0ey7 8g6n2ncis 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 capacitors are connected in seri,2, :- bxlulxpuqcpkmpa6t/3 es across a 12.0-V battt-p/pq3axk ,l6,u x bcm2up:lery. How much charge is stored in the 5.00-mF capacitor?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.00 mF, 10.0 mF, and 50.0 mF capacitors(xi o0c9ish, s are connected in series across a 12.0-V batt cs 9,s0i(oihxery. 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 connect.w49 vcjcamn-pf 93xjed in series across a 3.0-V battery. What is the voltage across the 1.0-mF capaci9c jpnm-. 9 xv43awfcjtor?

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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 acrj.c7zpq + hgj5oss a 3.0-V battery. What is the voltage across the 2.0-m+7hq pgjjz5.cF 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)b.ajo,p )i/u 2 alquu capacitors are connected in parallel across a 24-V battery. How much energy is stored in this combination when the c2luji.ou/b qu)ap) ,aapacitors 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 q8wac a7by a*k/wih.f;81qe dxc*t )iin parallel, and this pair is then connected in series with a 30-mF capacit/b .qyh7aa*ti)qdi; 88w*e xca1wckf or. What is the equivalent capacitance of this arrangement?

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92#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connected in parallel.c0f.px 5wv3 xvt/xus1 dpyw*. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent ca1 x fxsucyv /3t*.wpp5 0wdx.vpacitance?

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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. The combin3flyzav(o32/ wg: zpmation is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the charge onvw gapy23(fz m:lo3z/ 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 plg (cdh+w i,cgq c(h8p)ed-- parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage acrpdgeh)i (wl,p-+-h (qgc ccd 8oss 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 throujptw 3jl4 hwc+ib-d/ 1gh 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 t7acrnebq-v7b zvk :ne 8w8z-2hen 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 conqy7 ub5w/kblho z9;g .nected in series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by 9hloy;bg7/zku b5 w.qa 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 isgu3uvuor4w6i4lux4 i5 7in a2 charged to 6.0-V. It is then connected in series with a 3.0 o n374w4ug iivu5ilu 6raxu4 2$M\Omega$ 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 resistance on y/w iero qe5:z;jd.mw-g(0cf 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;yj*uv0wapp6t+szi 7 h 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 rechp*+r )r4pso sistance 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 resqomjv3.m z0e4 istance 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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