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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 te9no1tk*ukv+yn(wp 4 f2x.d qzrminals of a battery, when no current flows to an external circuit, is referred to qw+.o9d (f4u*2v kpnk y1ztx nas 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 /rwi. fkkv: i0between the terminals of a battery, when current flows to an external circuit, is referred to as kvkw.i i/fr:0 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 batterm.je uhzk5ln 5.00zc1 sh-xchy

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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 se5y**b4nvx tfdries,

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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 batterihcwx5 u4: uz25l(ztvy. If the current of 12 A flows from the battery, how much curre4 tc:u2izvlux 5wz(5 hnt 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 bat2)b /ynjg)stf tery. What is the voltage across any /fbt )yjn )2sgone 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 powpaiv3;nrn1 phss 1fper8x5 ;) er supplied by th 3vpxferpi1snn)p8 ;1 as5 hr;e 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 to a battery, tsxsygll/ep m18d k+n581x/ s

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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 be certain thath+xc:uxw5 x.tm h9um/8 lp 8vr

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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 17c+ zrq( hczi; 9 wc e)(s3smbbrt)uhh8h(zf)2-V battery. What is the voltage of any one of the resistor (izhbhr9cqz tf(m zwh sb7 (c+cu);3hs))er8s?

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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 connecte-l m4xrk+lmllv 9 z9)ajtjs84d in parallel to a battery. If the current of 12 A flows from the battery, how much cur9lt-8sl 9jk) 4lj xm+m4lrvazrent 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 connectet he;(;u lvxm9zh tzuim +86d4p9(n mld in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wires leading to t69h mmt+ v;lz p(z;4mt9u xi8uh(lendhe 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 constant voltage source, the powerogrj8ji ;5ajzn jiq0-1 b1m v7 supplio1rv 1j7z-5aqj g; njm8 b0iijed 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 rec3 nbu:/; *wl9-k pz)ndyyttu sistors, each of resistance R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is -nu9)dklczy 3*/t npwbyt :; uconnected 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 rule.c9gweaurto173 * lwvoh1 ao20
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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 r2i qd wb 95l8;tjm)gup/ojhb/ ule.
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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 anfljli3d 2t1inknf8z, 1uk 3 ,w 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 examploynlo5zcr 3f,6.mz /z e 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 herdrszk+dxgy ua)r-0;)hh- ;x de is valid for the circuit shown?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together in series (fty-m58m xa022 l0waguyaa4n"+" to "-" to "+" to "-"), and place th l2 50mn-y2g4f axmay0aat 8wuem 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 tog, q4;9qk qvm l37mjoi ob/0gin*y,h lxether in series ("+" to "-" to "-" to "+"), and place them in ayh/l7qoi;4vg j xq*mq o ,0b mklin,93 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 batteries together in parallel, and p6qc eh4ie(9dy lace themqcedi yh(e649 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 ar pwi9 dji oo.5y36pm7qe connected 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 capacito*lg-r.k c ezk-ea s4up2rg(+urs are connected in series, the equivalent capacitance of the combination increases. ul.k e+42ksupegr(-rza -* cg

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacs7 - bgk 8kc(aqxb0,vuitors are connected in series to a battery. If a total cha,c bkv70ubk-s(gq8 xarge of Q flows 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 areqz h+f*b2dk. onso(pc :+hq7u 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 connectedc 6(f +e mardbyoogr;3h-c.h1 in parallel, the equivalent capacitance of the combination increases.h .; ocra+1eh dm-c3g6(yorfb

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connected in paf fx7)ujni-pbm2) x f+rallel to a battery. If a total charge of Q -72jpnf) bx+f)xfuimflows from 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+-kihm9y svw7 quantity 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 connectest s1l.1f ro;qd in series to an ideal battery of constant tero1l1rsf; qst. minal 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 are connected in series to an ideal battery of 8h rp5gw*/sxrconstant terminal voltage. At the moment contact is made with the battery, the voltwsp*/ hxr8 g5rage 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 bat3 p:k48yd5b own4k p(jsuyu/p tery of constant terminal voltage. When this system reaches its steady-state, the voltau db/jnps 4:uypp5 4kw(oy38 kge 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 sho2z ndjtk 7w217 37qohcff, 67yhidcvculd

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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 sv7gz* nrzrl(gyczs* e * 009hammeter 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 obta+dom0 pe a6u+pined by properly placing an ammeter in a circuit consisting of one reep0+6 au +odmpsistor 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 resista)cfi *(1d4 isl9)ted iopto- wnce of an ammeter's shunt resistance

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to construct a voltmeter from a galvanomet cpa k/cxgpeyop 0+m 35;/o033mebure9v0 swmer, 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 resisx t74udjjo:67nb qgs4tance

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A voltage reading is obtained by placing a voltmeter3c.h4da.uxf ve fg26b across a resistor. What happens to tgc ..h4xae2 u36dbfvfhe 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 serier07*y5phtzw6 5 q+yfrqcp y+ds 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*+qwqyd+0cpfprzy6h57 yt r5 one computes the value of the resistance by dividing the voltmeter reading by 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:- j ;9bjr7r/)kgckymadhzo e*tz1qj48b g g5 placed in parallel across the resistor only. This network is then connected to a battery. If one computes the value of the resistanck 5 o *k r/b-j9mebzj):gycaz48rgjqdh;tg71 e 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, 5.32jzg8q ms8a4jp: exq0, and 4.0 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12,+tiv,-5q/f* hq 3b;gah (cuqrj pfp0n 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, aniu7exy+e l 4wjgx1;4 od 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 combination o 3far)na d55fuxu+n a2f 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 combinat- 48f*qtz/d t1c u myti*/cfqgion 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 flowsn+jt*alzjme xtj* y,m ) 763hs into a parallel combination 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 combination o:u;ps et +qn)wf 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.kmxhq0d6 1 )tk0 $\Omega$, 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 utvdzn.t g2glt91)8qg ;t;ri appliances are connected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were opztttg21l du nvgtq9 ).;ir8;gerated at 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 number of 100-W light bulbs you can co ;*qui-zpzujta u.etco:) ;-lnnect in parallel in a 120-V circuitueoza-tu p tu- l;czj*qi).:; without tripping 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 t w3 (+eh(6fnog4 4*x zewuo7 asviqg:$\Omega$ 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 3s5at* vdb8xlj ,f)ikl-v ;g7g 0 $\Omega$ are connected in parallel. If the combination is connected in series with a 9.0-V battery and a 20 $\Omega$ resistor, what is the current through the 15 $\Omega$ resistor?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 4.0, 6.0, and 10.0 mrhh re +h od84h;v u-x)avs9-$\Omega$ 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 vtnc a,ql r-+ +ukf*/s$\Omega$ 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 b d1fyunck d*6u 5ex.59.0 $\Omega$ 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 di:b)i5kp2j z5f-c5igw ,aw6t .wyi e9.0 $\Omega$ 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 Fig.jpi l(nn5-/an) -nemt 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 throughjt 3h fzi* bp.wfs951h $R_2$, 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 F :czppu(g 5e(.xkg( yfig. 19-3?


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


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


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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determine b8/o ,/8jvbgx7lzs j p03lgdt 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 the2 d:j-l dtqce.a4q mwu5 y-0ye 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. 19-4qux* p (rtpo9,w1xn 6n, 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 iv:ji(.8ws d-i8 ikuonn 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 relative2 +s jgbs+pmg1 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 po/vnedvm vj3 8kg- p)m3int 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 x6yavlao:1lav m927dq4 g:e / :pyzue 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 fro,jfa+r99mg;9u qgf s hm 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 vmw6 kz2wa 9uqm sw-w:t491)ajyzy2athe 7 $\Omega$ resistor in Fig. 19-6.


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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 8 q)pl ;jl: nc)e$\Omega$ 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 ixs5o/f d4s jt5n the 4 $\Omega$ resistor in Fig. 19-6.


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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the 1 lyzn,gk.ao2b/s 1jn82 $\Omega$ 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 j ,lm3ktc/;de07 rm bathe 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 con 0pfc +fahtw osl/+4c-necting the upper left and lower left corne/p40fc+la ofh-t+wsc rs?

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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. T8 yns.;oj qi x 7hys;+af,uja1he equivalent capacitance of thijyy;sx8a q+. o1n,7;ushja fis 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 co:pxg6zb 31jajk r5o o4fc1p 6bnnected in series across a 12.0-V battery. How mucor1 ocj64 b3xa1k5zjgp pf6:b h 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 are connected in 3u0yt;6v2qbn +0kbgys gb yv0series across a 12.0-V battery. What is the potential difference across the 10.0-mF capacitobyvs3g; bbq vtn0yg yu02k0+6r?

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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 c4.x e2zq3d ty 3l,fzzsonnected in series across a 3.0-V battery. What is .f2zdyzxs4,3z t q 3elthe voltage 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 across a 3. x ,*.dnd ;ift48d0ocuxcaej10-V battery. Whati,f dxot4e 8*ndux c0.ad;c 1j 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 kl8/j qj0)cxtmF capacitors are connected in parallel across a 24-V battery. How much energy ij)k8l/tj 0qc xs stored in this 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 connected in parallel, and this pair is theny4*n5*nea+yyxvxvnu8dwu; 8c t ,fy - connected in series with a 30-mF capacitor. Whfy v8 *ydwu*58aex, 4untv-yny+ ;x ncat 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. The combinat q5+lmof .bhso7.31 jp s)wdktion is then connected in series with a 12.0-Vk.7bldj qp+w 5)1sh 3foot.m s 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 connectsgw8drtt(w sk n( 0,0ied in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capag kid(snwtt( 080ws, rcitor. 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 co 4qprecn92zbctt w(- -nnected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF captew2z q-p9r -n ctbc4(acitor. 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 char8al3ya wu.e4j ged 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 throc/(wqaaqu 5v: a/iq c5ugh 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;f 5t- . fkfnkyt1hl2d series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0;tlytf5 .knhkd2- 1f f-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 connecvg7d . g5t6*: kzetsrfted in series with a 3.zde: gfkv*s5. r6g7tt0 $M\Omega$ 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 interna*.g3o jxsdaq9l resistance of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a milliammeter capable of reading up to 4.00 mA?

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100#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has a coil with a resistance of 24.0 -ysmduo ok +(cl5z;p68jtxd)$\Omega$. 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 a h s,)k f9)k6ungnatnp,m3g8 kn internal 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 4ow5svq masgy40zr1crwrvpwv4 8m1/u: 9 o4)i0.0 $\Omega$ 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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    总分:102分 及格:61.2分 时间:不限时
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