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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 curren;j.a)5qklhlr;a le3r t flows to ala.rjl;e ql3) ar5k; hn 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 u;nhvv,m *l iqdq-5 s*current flows to an external circuit, is referred to as t *iqu;,nl*sh- mvd qv5he

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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 co 1,n9p+ rkbfis86nlnycu kx-8nnected 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 seriaxkrxxbgz7,fe(m 32 tvw(3 - tes,

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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 battf0l.mlcgl6 te3gy/ ;oz6j.gg ery. If the current of 12 A flows from the bogmlgg lcj3.6 zygt/e6 .;lf 0attery, 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-:l;r 3u-mglcw V battery. What is the voltage across any one of the resistol-cg:u l m3rw;rs?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You obtain a 100 $\Omega$ light bulb and a 50 $\Omega$ light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. Which statement is correct?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in series to a constant voltage.ldpe r2l68djb ca+z: source, the power supplied by the sourccrd86 l 2jleapb.d+:ze

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected in parallel to a battemvtmci9cmi) 4 *2+ 4ehfc+d gery,

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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 parabzae e8)ky: 4vsms/b 5(ep uf -ohd4vg59 5zodllel, 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 bjrbbwtq;mp mwz,c7 r,6ki 6/)3zpe+ in parallel to a 12-V battery. What is the voltage of any one of tbk3pp76tz w+bqm,z wm ec,rbijr ;)6/he 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 arbwmpdb i)7a4g z r1e)3e connected in parallel to a battery. If the current of 12 A z)m7)rgb4i d b1wap3e 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 Chr 5hsoi 7wab,dh+eq) l sb*q3vk5:aj; bistmas tree lights are connected in parallel. What happens if one lamp burns out? (Assume neglis qs7ed); wjq 5b,lobb3ha*+k: havi5 gible resistance in the wires leading to the lamps.)

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in parallelk8bq8icf5 p, f to a constant voltage source, the power supplied by ib5qff8 pk8c, 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, e8w 5 +a6qymtqtach of resistance 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 networa+wtyqqm t 856k 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 junctiog x7 fjcg9z1h:3si/t yn 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 rul2 -c6avihf km)e.
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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 iszju- va06vn*1 r h7qvq 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 examplejgf3*4 teo*2l ryd* jdyg,3) ca84smmrr pm9e 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 va6*ukuh: z2zg nlid 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 ie +z1 m+pz lu,nv+9 tymew/-akdentical storage batteries together in series ("+" to "-" to "+" to "-"), and place them in a circuit, the combination will provi n+y t/kev1m u9p+e-lmwza,z+de

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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 batteries5/yh /o-v3w6jtmfl re6txp f6 together in series ("+" to "-" to "-" to "+"), and plx6hoyjltp/ r 3 mfwt6f 6ev/5-ace 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 batter dc.22 z5sxelqku-/6 +(ebytgg kwbn1 ies together in parallel, and place them 6g2 lqk.-e/ ge1syktn+( uzbdcb2 wx5 in 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 co:z8qp,nqj n -bnnected 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, tr4vfo fg6 4fpom xl..,he equivalent capacitance of ,o4. ffplxf g.rv4 o6mthe combination increases.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connected i6d*zo5xucko ny 1 l+53luvmb6n series to a battery. If a total charge of Q flows from the battery, how much charge does each c*db u o3ku+cmo 561lxy5zn6lvapacitor carry?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in parallel to a b0fqjdby-pm cdt z f,x867y14s attery,

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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 inx,1o5gb9 rwemy *2m mz parallel, the equivalent capacitance of the combination increasesy 2,mbox5mrzmwg *91e.

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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 cn nyvfelqc hi97q 9yb w;,0r8:onnected in parallel to a battery. If a total charge of Q flows fror9ye0qw: i8nbf9y,7nh vlqc;m 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 qu2f/vnvzvc2 qsvyy- +d608 s waantity 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 seriesmas;1 ;ylzj(a0-rs qt to an ideal battery of constant terminal 01as( ;;a-lrmtsjzyq voltage. At the 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 0tiu2tg0iyia77x z :tare connected in series to an ideal battery of constant terminal voltage. At the moment contact is mx i2ugt77iz0i t:ya0t ade 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 connect9n h)8tzey:jwr .w0ow ed in series to an ideal battery of constant terminal voltage. When this system reaches its s jewh0 on.r:y)w98zwtteady-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 should19tre m0s :fkhkegb2.

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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 c(9s 78xxrvjf ammeter by the addition of a

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A current reading is obtained by properly placing an ammeter in a circuit consic;0f x/1qqh hnsting of one resistor and one battery. As a resqnc/ hfh01 ;xqult,

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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 resistabqjf/eohqujt6wg+c8+v5 0w j+* n1mb nce

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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 galvanome yf suv3)id0cf ip*d;cn,v 5-lu )w6fqter, 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 voltme*rkz. g lm9:k,6mja3j, p3z.xvg cdhpter'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 plarnsd , .bn m2(7kkf2npcing a voltmeter across a resistor. What happens to the tota7. 2pnm(nfrknd 2bk,sl 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 series with an ammeter, and a voltmeter itey1hu.(* f *8m nxtlss 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 ammeter reading, the value on msut.8lte*yh(f 1x*btained

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor isodsf57h (hb/ h jw.0cn;-wxwd wired in series with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a badwow7xw/jh5cdsf b- nh.(0h; ttery. 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, an-iy) ue3(key ,iysmex8l2 7 uad 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,qdzzbur) 9l;h7 kj6f, 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, 12e-se; hkpfk, isj.y) (, and 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 intxptc6* b6x7/,pp dd rdo 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 6z:)v;nkqbx,pek df )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 .xdr-6 xa-0jn+ mrkq5bhh*t2ko lsu.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 combia mvz)8u)+/y,mcaduw nation 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 o2s2v3 zg0isa- 6haaka f 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 12079et0 pg1ncyu -V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at thet y7pce ng19u0 same time what total current would they draw?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the maximum number of 100-W nrzc* r7d;i+xwg.v ,jlight bulbs you can connect in parallel in a 120-V circuit without tripping a 20+w*7 ; cjx, dnz.rgvir-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 2.02m/0 3scyn0/fjliq mp $\Omega$ 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 ankksqlnfpi 3-w-pi+: 3f-fzq*d 30 $\Omega$ are connected in parallel. If the combination is connected in series with a 9.0-V battery and a 20 $\Omega$ resistor, what is the current through the 15 $\Omega$ resistor?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 4.0, 6.0, and 10. suq7 xtopb7fik3lf)e *e 973q0 $\Omega$ 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 9.0 oel44s6b/r ;e4 5/ vxki11jemdpwae t$\Omega$ 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 8 o8mziu*eok6 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 tmo 3byu6hrwv+zqy w1 a4y429.0 $\Omega$ 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 in Fir 2hg3aq9 u-kpg. 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 throughf-6es6wj8 px-ct 8gyz $R_2$, 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 cirp0xiqpd8ne bj1y*z p .s)9:cy cuit 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.i srk5/ :yea gasxg50-4, 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 Fig. 19-4, determine the je +8 qhhn43flcurrent 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 current in thqr ev: onspjcb 9k0rm a7;*5)te 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 tomvkz9 :xjm7-rm*h 1jt 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 potentia;x y1zq+hx p)dl of point B relative 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 point C in Fig. 19-5vm gh.nnw3ytq h q*s/ /q)1/mk?


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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 thtg 4zsnwwo 1h+z72j, ;pg1bhje battery 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 point A to point B in Fig. 19-5g*zjl/ixu(p6h pk (fe f (vr7 lna4.6k?


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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 tl4d g f7dhl+9 1c or77cjekc,che 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 currenwxtxvkno)3sd *i prky;3yt; :2mju5x rqo-; 3t 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 thoqh70 *) wo1c4r hhfnje 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 1q1*2elo2 cx1 c2 v 5bao.ewyly2 $\Omega$ 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 thsc:t,0a r qiyfr+*xgr g7 .h,se 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 6m os-) ;bthdm:r vdx4solid wire connecting the upper left and lower left cor64mdsd r:vbo) x;thm-ners?

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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 -jj6-j5x) vcnbsgt3x/d8y l tequivalent capacitance of this combination isd 6tjny)-- clt/5b8j3 sgxxvj

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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 507indxpke+ u yc77t*rhjg/)v 1izh/:g.0 mF capacitors are connected in series across a 12.0-V battery. How much charge irtyi /n +p7ue i7hv z1:ghk/xdj)*c g7s 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 5- t2wn.m ipelkq4;hk10.0 mF capacitors are connected in series across a 12.0-V battery. What is the potential difference ackelmn; pwt1.k-q2 4ihross 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 capacfc /f *sxxcz6 zcf,4m9itor are connected in series across a 3.0-V battery. What is the voltage across the 1.0-mF capac,xcffc csz mxz6/f*94itor?

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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 acra* )66fen ld0roqex6yic+ g k;oss a 3.0-V battery. What is the voltage xk*6;qriaoc6 6dl)y0 n gefe+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 capb1 yo/fi, wg1dkio f43acitors are connected in parallel across a 24-V battery. How much energy is stored in this combination when the capacito/w3obok i,g4i1f yd1frs are fully charged?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Capacitances of 10 mF and 20 mF are connected in parallel, and this pair is th -0z 1xlow3odyl9 p.ee3e up5wen connected in series with a 30-mF capacitor. What is the equivalent capacitance o.p5eluexde 31p0yo3 l-9 ozw wf 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 .8z7+n2ngc mna ka0w kmF and 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. W7 z gnaca +kmwkn.802nhat 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 .y4:mjyh zub6 mF and 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. Whz:y6hbmyu j 4.at 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 aruv( d 8hodle1(e connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage across the 6.(dv8 uol(1de h00-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 vb4 m p/9oh7 nvr2*vpp /nm+qqthrough 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 discharged through awzy mn .yt( 4wwiq+v83 $4.0 \times 10^{6} \; \Omega$ 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 vhg u.jhd* c sg7 ;no8r6whp16series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combn 17sj huog;*86hcw. dvpg r6hination 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 y1; gm ::o 3unzvez2bs3og: mbyez s: n2;uz13v.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 resistance of 100 sy 8-fnx 8f7e l)vflr0$\Omega$ 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 coi-pr( *powvq +gx9d. lel 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 resistanc)m8j ( t:3su7 olssguie 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 n(t8wc2cws()az si bt p3p.-,(5hadilroc b1 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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