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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 differenc*) hyt h27ht0vb .0bzkl +(lr5bdbx:hhe a8xfe between the terminals of a battery, when no current flows to an external circuit, is referred l)tkh ha8he(20*+:f x0.btl5bhbhyzbdvxr7to 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 terminapqq .der c jldypd9fo*1f 4;99ls of a battery, when current flows to an external circuit, isfq pp. c ded4d9y*rfoqj9l;91 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 balj6a90 i9yymaum5 o swh 4v(4bttery

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are con.o*2;e 1z b wiji)ribnnected 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 resisv+-sjck za71w pcejf,(j :hwnp4to4- tors are connected in series to a battery. If the current of 12 A flows from the battery, how muchccaz jp4+-fpose(t- 1j 7n :4vww,hjk 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 connectexm) (qft2b;1g 0morxk ,nn*klf:2cqed in series to a 12-V battery. What is thelf 2 r *c n;obt(:)g 02mxkknexqq,mf1 voltage across 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 srkux/c2et .(d ource, the power supplied by the/k.tdec(2ur x 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 a6zjbcqz j(izpw8.(h; a 6e7; bb 0xorkre 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 parh n:md , ,)saj q(p)vox.)2 moul4efehallel, 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 in parallel t98i 0ovw5ql7-jcd 8y.kta uvgo a 12-V battery. What is the voltage of any one of the resistv0i5y7.odlugk j8t9va-8 qwcors?

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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 parallel to a bab/45a inzko*f9j ,nu qnor2(s ttery. If the current of 12 A flows from the battery, how much curren o2*95 / bjrknqniaun4( o,fszt flows through any one of the resistors?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lamps in a string of Christmas tree lights are connected in parallel. What 8rlw*rkd3a ,6/dnf hz happens if one lamp burns out? (Assume negligible resistance in the wires leading to the lampn6 hrw fd/a zrd*l8k,3s.)

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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 paral y)7 r/yozfvwu bg2l3 jiv7,8ylel to a constant voltage source, the power supplb2j iy 3fo7v uyw/y) vl78rzg,ied 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 1 zd-typf 0zrz1shln:1hv6 z* 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 thil dh:sz f z*16z-0vz1p 1hntrys 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.,sidts++cqarpg : 05r
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's lo.6wvp5bhyl ( 95 mqaabop 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 i1xta r4a z5m(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 rulep57anh rj/i ko n)l:-s9d fy/e 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 circc ,mp(sh*fc c(dze8n .x/mwd.uit 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 batteriel6jep/ x (aai+s together in series ("+" to "-" to "+" to "-"), and place them in a circuit ai xl(+ep/a6j, 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 w4 c 2sac( .g3cv0yzflseries ("+" to "-" to "-" to "+"), and place t cc2 s.vac4f30l(zwyg hem 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 i.kgrw:0 bur4wgmuq -/7j o sard+(+kldentical storage batteries together in parallel, and place them in a circuit, the combinj brrk s: umqg7 .0/o+lwd- ukr(g+wa4ation 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 connected in series to a bat8 2)ig5t)el tcvry f)yb2nnx .tery,

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are connected in series, the eof,s)t* 5jc smquivalent capacitance of the combin fjt*,mscos)5ation 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 seriesv;,t s73k.qm/eo wrap to a battery. If a total charge of Q flows from the battery, ,s/m3ta7p.wok eqr; vhow 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 capacitiwo( h+x e 9xd5lbu1d-ors 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 connected in parallel, ygze;ipgvdt+3 3q 17x the equivalent capacitance of the combin qtgyz1x3p 3+d;7vgei ation 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 in parallel to a battery. If -* 9xu-fuxj dya total charge of Q flows from the battery, how much cyf u-x u*-d9xjharge 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 qu j0v0bwt8 v (17hc idx4x8oewxantity 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 34 ywt1u7(wjln +vwid series to an ideal battery of constant terminal voltage. At the moment contact is madw4 jtwnvu w3i+( 7l1yde 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 ,z(za )*,h-*xhhs*sol nwg7xg - p8qku e0mcz series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, egcs-ksxah 8* 7( z*qun, 0zo xzmw p*-,hlhg)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 connect*w opny kv:-g)qut/ ;sed in series to an ideal battery of constant terminal voltage. When this system reaches )*:vn -u;g/ksqwtypo 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 shou w l bu: ,m vhsu9n*aoegg0*nm8e7o/4)z/goom ld

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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 th3tt, ,iyadk 6i(c9nn ue 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 p2g3go8 9+:s ixdlx vb1n k/ mq3+aro5e msyxu.roperly placing an ammeter in a circuit consisting of one resistor and one battery. As ay:39xg82sd l3gxuo+k51.mimn o+q e a bsrvx/ 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 ofdzsab akv 3s*3n5/ qf30ek7wk 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 galvanometudmfpnsbg y :u.5p0;v:7 ,kkmer, 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 resist g hu9axm*nwg4(oat1wd,e(/i:d ja (xance of a voltmeter'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 placing a voltmeter acrossth)s/h, h 1tfo -0*ax0zcv 1vvj4 zcna a resistor. What happens to the total current flowing in the circuit as a resul/*zt)f10vvna zcs0hoh t- ,av xj1h 4ct 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 voltmo47ekn zdx9e5-8xsl avb pq,bw o4f)0eter is placed in parallel across both the resistor and the amms8o5l x4vp nexq47o,9 zbkabde0 f) -weter. 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 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 8 edv d+ pse.2up4.agtis placed in parallel across the resistor .8t eva+peds2ug .p4d only. This network is then connected to a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 20 $\Omega$ resistors are connected in series. What is the equivalent resistance?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four resistors of 12, 3.0, 5.0, and 4.0 l iv 3pjuw:an*(ko(d5 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12, 12, and 6.0-3+3spbyxq lg $\Omega$ 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 6dzj r fv+6cffvah)mf/.1t p..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 j9 +zp32iyyp ga 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 cm*s2gag8h)i 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 combinaqkj99 pzx36vor;w rq /;j v zsffq*/l0tion 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 combinati..s7 jb8kihpton of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 6.0 $\Omega$ resistor?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combination of a 4kbl74863*/n bfjt edtse5r **,wom zgl :lqqa.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-V circuitzjyy 402-8t 2bd mmvvd: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were opmm4t08 2ydyd2jb vv-zerated 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 bulbsw 8jyxz(k.3 lz you can connect in parallel in a 120kzlzw (jy. 38x-V circuit 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 2.0jyr;1 ji8k+sh $\Omega$ 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 30hd 2iwt3fl 641nfnk m* $\Omega$ 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 buw48l,4ca+wn1pmr10lf swo 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 anew ;,jqt bdg7zv kv cx2p5: p0*4l,kmyd 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 d6pihmcl :,o09.0 $\Omega$ 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 i8psx fzzjg 97, nm1(hp-bet5 csys:9and 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 circuit inf/,3x)dlgl iayl rj89 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 throughh lmpwjag:7 *9 $R_2$, 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 Fig. 19-3? g-gj-l0tq1+ 94 i thth wi*pvt


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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, detdork/pq2hjj f.gtn 6-d vys q,s -6f nd9)51nzermine 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 tgfxha5 e+4 5nehe current in the 3 $\Omega$ resistor.


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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determine txr8 q9d0 gsb0the 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 in 4u( .9ujf*y lfx:pkm fFig. 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 potentialrq( ej (u8d s5(qolmva 41nxo+mmt*9x 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 potentia+ljbkbxq07 b( l 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 the batknpkdjhl :je6h6z.e34taa )+ tery 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 dro.u rw*m+))au ptp 59hp*nl rwks 4ly1ap from point A to point B in Fig. 19-5?


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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the e,g5ot)+ zveo7 $\Omega$ 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 kd.d nh5hcfxel9y7e s8; o*.s8 $\Omega$ 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 4 p p/ +j ,nqdk:dk,ghgc6 o43bp$\Omega$ 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 (cf0ws vna+)g 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 in the 1 d8d(obo4f47atxbjf bs( kk (58 $\Omega$ 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 wi-d 7q ,n,upyvnre connecting the upper left and lower left corne-un,qpy7v n,d 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. )ckkty.d/n0s v l yz3a)qwh):The equivalent capacitance of this combk) h))/nyd cst 0.qwk:zl3y avination 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 series acronnrg(1tx1raz:-cx .w b,x*urss a 12.0-V battery. How m-ta1c:xb*nz, xw u(rr . rg1xnuch 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 mFie+-h h2lfg,rfd19 hpp9mx0l capacitors are connected in series across a 12.0-V battery. What is 9 l90frp +d hflm1 -giphx2h,ethe 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 ca7w3l0l;92vh r bktl1p iz*lp xpacitor are connected in series across a 3.0-V battery. plxtv9k7*;llwz 3 1pr0 hbil2 What is the 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 co,x:eik 9fft.i nnected in series across a 3.0-V battery. What is the voltage across te: fk9,ix. tifhe 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 connected in parallel acr5lwnk;.ynx,1 s tcol8 oss a 24-V battery. How much energy is stored in this combination when the capacitors are fully char w,sxtcyk5 lnol n.8;1ged?

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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, ryeb9;ojgwh o; n--q03 jmh, jand this pair is then connected in series ,0he-wbjj;jo ;qm-hyg 9 n3orwith a 30-mF capacitor. 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. The combinalm 72 f)sh-wq+x3nq rytion is then connected in series wi)n3q- yrs7x+q hfw ml2th a 12.0-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 6.00u 71v.kkvi/84 uro ryg 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 capacitory/ kvr4u u7ki81ro.vg. 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 rsj:3h.pem6 2*wg)ucj5icv5 ) brdrtand 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-rg t 2v)5uc5h * 6rd:bisewjcp m.3)jrmF 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 cx2ul kch6):q6 fc/ ;nn /ejs ai*+ayfeaqk(m.harged 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 throu fqwu53pwpxyuvd* :;d2 .f,sdgh 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 a 0.50-mF capacitor. il:g,ri .x1itpf *ys 8 The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. Whatipfy. :*8s rilt,ixg1 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 i9zbwn.xz k3-ts then connected in series with a 3.0 xz-b3w kn.z 9t$M\Omega$ 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 10 u0 ecn515 q7cfc9hxyq0 $\Omega$ 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 resista+l0-asf1+dpk ul 5xd.eg7h npnce 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 resistanajh u j8jo643 7ingp4,qnobk ,ce of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a 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 ocaj:ix/yb 8(yvn(clq k ar 7 101oz0g40.0 $\Omega$ 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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