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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 )(yg6, wk*u wto( cdd f-p/oqkno current flows to an exte q 6-*kgf ,(wcduo)d/t(kowpy rnal 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 y(ej/utu+o1ur+ kzn.: rduqk9 zd35vr3 t .vm battery, when current flows to an external circuit, is re+rq. udo.v 1m359n rdz (e y/k kutuvurjt3+z:ferred 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 congo)/ g*bvuk7 ynected 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 sek1/eh.a n if. 0q(9aoc gcij jb73r.xr+ o(agvries,

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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/f5j1 wu36vh yzsahs, connected in series to a battery. If the current ofyj1h h5/afs3zs v6,wu 12 A flows from the 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 fr /:h zrn6.he12-V battery. What is the voltage acrosszf /hhr:n 6re. any one of the resistors?

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

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in series to a constant voltage source, the power sexoaa3-h;:i 6u; x nv uz9het;upp3n hzvht;uuix;a96-:x;aoeelied 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 ar6u+ 0 t .5duvvdezxkfkfj:8-c tly2z8e connected 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 can b ;dh7od ,ilfj+e 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-z 7qgiqv-h0m6 V battery. What is the voltage of any one of hzqimq-v6g07 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 parave82cpx 4i1 z 4v)os+qpy 9yrlllel to a battery. If the current of 12 A flows from the battvcpr94y yzle 4x+1i 2s)p8qovery, 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 conn/uzb+ p 6o+jymw42; wccrs wib o/d.n1ected in parallel. What happens if one lam yo/jpd.sc bw+wozi wc2rbu/4mn61; + p burns out? (Assume negligible resistance in the wires leading to the lamps.)

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in parallel to ad n/op.9 m:9quiozlaf1hr*)v constant voltage source, the power s p9 mzf*r.1daq/lh 9no)i:vouupplied by the source

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identical resistors, each of resistance R. The k .b1(ij zd9v5;ip qvhmaximum power each can dissipate is P. Two of the resistors are connected in series, and a third ipkhziqi9bd(v j;v. 51s 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 ju;qo;11 uclbob nction 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 lojs- s+rtg0ds+z8 m p85 oaesm7 ltpyyz8g2 :q1op rule.
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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 example ofy301gtwmt0ug4 )d8bp yzvze3

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's junction rug8wg b /wsqaw;ggo(g0-yec 0 l71b: qcle is an example of

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the equations here is valid for the circu/m3rt 7xydi*u1vy () jld9x oeit 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 batteriepj6 cric*( 3vos together in series ("+" to "-" to "+" to "-"), and place them in a cir*vjo(p ic6c r3cuit, 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 " u/b7 5b 5;lzjnr2a8eywzhh- f-" to "-" to "+"), and place them in a circuit, the combination w l2r-ujh;5bh5w87z bnzy/fe aill provide

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together/ vl*6rue3mha in parallel, and place them in a circu6ve u3 lahrm*/it, 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 conng ny.ky ro-c)9bmp+fft52v qi 97j,ta ected 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 capacitor 7 kc1dax k/.v.pxszj+s are connected in series, the equivalent capacitance of the combixs pjvk.xc/k.zd7 1+anation 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 in series to a battery. fe-p./ b q(ljnIf a total charge of Q flows from the battery, hop /n.-bf elj(qw 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 capacitob47e+wy hgul3 (p2afe i-b*8mupcpj0rs are connected in parallel to a battery,

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are c 4a9.c bed:b.hxswvqwxb+o l*q qe;+a;-kyr9onnected in parallel, the equivalent capacitance ofwab*l+oqdh+v-ab ex:49; 9q.y wc. s k; rqebx the combination increases.

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connected i qw7, twxw;,g6iom :yrn parallel to a battery. If a total charge of Q flows from the battery, how much charge does each capacitor carrywww :yrtq m,;,gi67ox?

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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 quantity RC?b;oz mlq. ffmkjh.10 .

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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 c : gj-lvv-uef-onnected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across thluvjf-- eg :-ve 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 capgro7w )il1 wjtf )sy2+acitor are connected in series to an ideal battery of constant terminal voltage. At the moment contacjg7ly )2)1wwsi+tf ort 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 const1s+sqv66zs egjbfh(658;nrkvxw t ) mant terminal voltage. When this system reaches its steady-state, the voltage across tht665r6 8qksgm(svv;nswej)1 + xhzb f e 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 c5ewf**pzc8bv5jb1j/cdn w dg29k; id

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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 addi/z l.d.z4u+ mxikm/ooqsjyc i; 7g32 ktion 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 ammh ;tt wogi 2nl7 xfsdv8al*(/7eter in a circuit consisting of one resistor and one battevhs/;a8(dtw *ixnl7l 72ogtfry. 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 an ammeter's shunnfl(4 q/tyf6xc9bit q )k f9q+t 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 aik fpnz v0,2)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 voltmetxts*7*;u bltv er'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 obtaimidlnvltg (0+0- -pog ned by placing a voltmeter across a resistor. What happens to the total current flowing in the circuit as a res0gg om -+lipnd0 l(-vtult 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 ammet 5xf)7eomxos *h2fb3tforub 0o bg03+er, 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 ammeter readi*0b f3r0 feob ogx)b72sfo53+om xuhtng, 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 - nzpgrou,w0bts-xm;5q 5r2jis placed in parallel across the resistor only. This network is then connected to a battery. If one computes the value of thsm-5ug p ; x5,2jrn-zoqwtrb0e 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, and 4.dy z 4tys*yc,+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,r)yf+pl h *x4ztm 8drcdx 4,o**fm)ee 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 qc02kwplg; (p $\Omega$ 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 combination-lqibz .x-h t4 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 ij bs k;qq ay-*ed10(epnto a series 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 combinate:6 zje,xm0mjlde) +uion 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 aarmm.+87zx0 qjq +bn t 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 parallhun 4 3umo6z6ppw 9pit :fyo1:el combination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistor. What current flows through the 4.0 $\Omega$ resistor?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0 $\Omega$ and a 12 $\Omega$ resistor are connected in parallel to a 36-V battery. What power is dissipated by the 6.0 $\Omega$ resistor?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The following three appliances ajykf:a ,r2d5lely7f* hxmj :+re connected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current woul: kj rl: j7fdaxyf,myhl5 2e*+d 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 light bulbjjm936hn8sjskp / db*e jnb .4s you can connect in parallel in a 120-V circuit without trip epsnh9 d83j*jj jmn sk6b.4b/ping a 20-A circuit breaker?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A combination of 2.0 j i4i6ei an mjd6u6r46$\Omega$ 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 av1 :c27 qm qimsm2k0kfnd 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, andq)q2 ge vzxdc;zz/ 76n.sgr/z 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 andttv qzdg 4qbj 6 k5fg2k2.,*dg 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 and 9.jx y/p0n;ipeievbnge 21- 6v 7v:q w7e0 $\Omega$ 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 6pk n *e.gcqqugh9;k09.0 $\Omega$ 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 resir 15mrkmyyn s:3 zy)c*stance of the 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 througyd.,b fk+qh vf 6t6j7qh $R_2$, 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 resistan wijs lbw(/6w*ce 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,t1yjn+ru7(kh7 sq 87kyn /tyt:)eprm 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 9u;l y*jnypm7current 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 Fig7su8+k. ruddp. 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 k,eu +mkz0bh4 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 u1d4 s o (-q1ez6 (xqot,bybkypoint 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 potential9-nut +mw fz pzuu;.hf gp6/(d of point D relative 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 ;6 cj1me qjh7uc0fj)cthe 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 qp*q- tb x 34df8kd3cjdrop 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 currensskaymb 8/5tcw:1- gxt in the 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 uz 61rq-3nha ein 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 the 4ax,np:*de1nb) 5o v.quz)hem $\Omega$ 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 1qq pfa; z)6jy+ tm:84joq3xxm2 $\Omega$ 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 27o9d 49gta;drlyn md 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 lowoekddkw,jb x,:z1/ e *5)oolzer left corners?ood e kw*5z/,de :k,x ojz)b1l

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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. T3x8/ttoae c.1d6p y rrhe equivalent capacitance of this combint /x3.rp oce6t8d ay1ration 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 connaw*bhzk r/* 4ewbfaw3upp:, ( ected in series across a 12.0-V battery. Howwb4/*:uw(,rz*e pakf wah3pb 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 mFsa5v)(1 wufqfl,p 7,(oxcup)eq5e fn(7n yv w capacitors are connected in series across a 12.0-V battery. What is5 q n)wp ,ef)5c(7aow,n p17ffvvqu ( xsl(yue 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 cabf t)b.skjov6n j;2khbh19j+ pacitor are connected in series across a 3.0-V battery. What is the voltage across thj;b)k.sjb kjo h t+916hbnvf 2e 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 acvt9l xm ex:0gvoz 6mu 07yma-/ross a 3.0-V battery. What is th/0u7xmaz :o vl-9emymx6vg0t e voltage across the 2.0-mF capacitor?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1.0 mF, 2.0 mF, and 3.0 mF capacitors are coa0t hevtljf*55drwp+g5abc)6hsk62hf )3q gnnected in parallel across a 24-V battery. How much energy is stored in this combination when the capacitors are fully chargfhhagk 5cd tv)qrlj0g+hf56* sa3t)e6bw p25ed?

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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 6z h*z wl-mdac *l1h08t;)pvwg(dootconnected in parallel, and this pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitance of this arranvcd0og 1;zhww- att (z l l*h6p8*dmo)gement?

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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 combe)(tx x2llxxi:i 9702yoyl ev ination is then connected in series with a txvl(:2 ix029e yx i xyl)7oel12.0-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 conn0z * y3viznru9u7gih2 ected in parallel. The combination is then connected in series with a 12.0-V battery an93nz 0gurz7hi*v uiy 2d 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 hkzb4 j9p k37k7c-+xpt.lcz;n ouh,v connected in parallel. The combination is then connected inb .7 zh-tvp kc,zko+;u4klnc p 79j3xh series with a 12.0-V battery and a 14.0-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 chargedsqa(8 87/urx /bo zayj 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 to 12 V and then discharged througuka7 x,0 3yhwvyjsa/ 0gbs ,ec8/6 bich a $4.0 \times 10^{6} \; \Omega$ resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-MW resistor is connected in series with h ds7j5jeljgz5/nh, .vkl, k*a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V b75jjkj, 5vh/gsknl*zh. l ed,attery. 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 3(cyw yw ,bo-26/ xogfr.0 /f oc 2y-wgxy,r (obw6$M\Omega$ 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 resista+v;dnni5qu*cqj1 a;1 e- plvf)(p4rx vzem;t nce 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 cosolq, urzfz(5dj 83:kil 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 inte.)dh(epr6zm3 c p.d rurnal 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 resistanckgs vj9.w ;71x gdq5qae 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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