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习题练习：Physics Unit19: DC Circuits
本习题练习试卷来源于无忧得胜-网上国际课程 (https://5edu.win)， 为试卷打印版，您也可以在网站平台(https://autoconfig.5edu.win/)直接 访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。 访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 77，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://autoconfig.5edu.win/test77.html  教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。
 作者: admin  发布日期: 2022-08-17 15:49    总分: 102分  得分: _____________

答题人: 游客未登录  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 betwe:5rjilalwidb 0+2+ b/ow6 mbven the terminals of a battery, when no current flows to an5 0bb/im26w+ w do:v+lr lbiaj 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 b(ex +q5k m/h6fbe*vm*7e b8yd c8nizi attery, when current flows to an external circuit, is referrf 7hv8 d(b8ykimex+/i ee*b * cz56nqmed 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 l5w4a7 btlsv .connected 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 conneckq0 u b 5vqvt:9-8um;p abx7bnted in series,

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in sj2 t k qjbg)wkv8 mbykiz;7uvh-/* ,1aeries to a battery. If the current of 12 A flows from the battery, how much current flows thua*vjt2k w8k-i k7zbyq,g ) j bh/;1vmrough 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 12w3w3 p;x /hu,zs rxrg1-V battery. What is the voltage across any one of the resistorg,3xwh zx3r 1r;puws/s?

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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 sourcec j3)i-:7xtzji qguw2 , the power suppliedigwt j- z:xq3j7i)2uc 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 are connected in parallel to a batte2ce;vrq:+h0+n f jjra qa)ke (epd36qy ko1n;ry,

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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 ca bwgv)used ))0n 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 resistoh t+cz52zeyoix/sw6 ,rs are connected in parallel to a 12-V battery. What is the voltage of any one of the resiss2co + y6hzi/5zxetw ,tors?

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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 to93 emstwkaqz.6j8 c :v a battery. If the current of 12 A flows from the battery, how much current flows mzq.c9w83 :e jvtas6k 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 parallj ()e5wgqt (x3 ns1lkia5ddx3 el. What happens if one lamp burns out? (Assume negligible resistance in the wires lelijn)(q5x5ddwsgte 3 xk13a( ading 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 addet ls2cfz rbyg0;dmq)re52-q :d in parallel to a constant voltage source, the power supplied mt)rb5fq c ;:gz02q2 ysrd-leby 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 3k6 k+ancvr otif t/;2 x0uln6resistance 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 isr+vu3l 6 i2txna ctkonfk06;/ 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 rulvd 3:faj 5 q70w )r8*6olcoj kgvz8tzbe.
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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 3m3xvv 9 t3n )j a:66lfkvogfkrule.
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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 o;m hnz8n;a :tof

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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 ex kg 7)8rr.ekh, i,mjrcample 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 equationsu (.ee(qwcog0 here 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 battml7bxqvry6iwb3 +aia) g9r08 eries together in series ("+" to "-" to "+" to "-"), and place them in a circuit, the combination will providevba lb mi9y8q07xgw6rr) +a3 i

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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 toget,*e kjj-ka(ks ab-3fd her in series ("+" to "-" to "-" to "+"), and j- -(3ska*a,kfke dbjplace 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 batterilou-m3nscb rsv1:i6 , bs;2hses together in parallel, and place them in a circuit, the combination will provisnbsvu31 :2i l so rhs6cm,-;bde

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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 batteqnkwp 4s8d r2/mcibx -:t0f 6bry,

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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 equivalent capac 98p9 mscs5ltqitance of the c 5l989sqcspm tombination 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 aix - 52 4 2ivw:im1oytm/v0yv*sbpdrto a battery. If a total charge of Q flows from the battery, how much charge does each capaci4roib 52 sm1xdty2 *w piiy0a-: /mvvvtor 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 paw 6du ;8bd7mvfrallel 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 con(jrkvds.4wg spkk (t4z q 035hnected in parallel, the equivalent capacitance of th.(zw44 gk5kdhp rts(0q 3jskve 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 in paral amwt*s1:2 zdfj.a;qqt*8vellel to a battery. If a total charge of Q flows from the battery, how mum8sqa .qt d t*z;:al2 ew*vjf1ch 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 qua) qre;g w-h8wjntity RC?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of con3 ix ldnss5a)7stant terminal voltage. At the moment contact is made with the battery, the voltage acrosi5d l7n )sx3ass 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 hj2 mzz*o6 to+of constant terminal voltage. At the moment contact io jt*oz2mh 6+zs 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 ypv9 s ;4doz1pph/y(psc,d 8 sdc*z ,jof constant terminal voltage.jds*c 4o9 d 8cv1/hspz;p pd,(,ysypz When this system reaches its steady-state, the voltage across the resistor is

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal ammeter shouldr6 o)sr65frxa-w : erurz,6ru

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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 additioq -x cm1cnvs7*4sx rm4n 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 ammet9 (gwu.ljc)u ter in a circuit consisting of one resistor and onc g9uulj). (wte battery. As a result,

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Decreasing the resistance of an ammeter's shunt resistancphoa92tn - m z8ey(suro.f74 se

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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 5l zo92eq960xza1 qur( qoykua voltmeter 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 resisti;wso,nwlbjnna 3- :((m q8;exrb5t a f(y0 vzance 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 obtk1 boz3d zl*1kkkh a**ained by placing a voltmeter across a resistor. What happens to the total current flowing in the circu*hk akz*b1zdl kk *31oit 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 d-gw6y ,oq jxdmmt9-0q f(psizh .0)p voltmeter is placed in parallel across both the resistor and the ammeter. This network is then placed across a batt,06w9zthf d- s( ij.q0yx-dq pm pgom)ery. 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 h)r78g pikrn5k ,rl(y with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If one computes the value of the resistance by dividing the vo, hn8)g 7 (lrky5rrkipltmeter 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, ckf g5pu+:)p37y vprt3.0, 5.0, 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, 12, and 6m. fno:6g,al 3s0 x crl8xbf.c.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, aw4ik)wn a0ah 9nd 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 of:3; ahqj/tb d+t( fw53n ubpkv.obc,z a 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 4.0 $\Omega$ resistor?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination of a 3.0uj3d2 st+v- pk $\Omega$ 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 akhe7z) b e1q7r 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 oojvz)h1:v kxyh 66 v4of 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 into5 01vdog5icr c2f i s)6yn5gom a parallel 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 are connected to a 120-V circuit: 12xcde8vsix ,7b*ru m, 200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the 827 suxixcr* e,m, vbdsame 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 connect in parallel jk3 w*0yud)y7pk8en) b.qmdl in a 120-V circuit without tripping a 20-)7 jd0 ).wynuybemd8 qpkk* 3lA 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 2.0eofg/kz 7 4*ex $\Omega$ 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 ane x qwa5/n)+-iozjml-y36ip f 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, 6g d lgp6xlj: yq88d,9k.0, and 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 and 9mtbsd y9t) *qs97psifc ,s44n.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.j d2*)jz x+5lb qxzhds) 29ugy0 $\Omega$ 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 anr+en02 -dfcck ya*rm v+ r1et7d 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 thmntg dlx70-7)tw8g obe 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 through esb,-9ab) ow b4ud.pg;lq1 ykilxc+4$R_2$, 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.ms1q7oc+f/ 9mq;i+cb- bdf mx 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, detkn 9e3xy0l,fz)z bw6 bermine 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. 19s90dv acytws) xfe8 o17,w.s m-4, determine the 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, dete.ich 5x89*dwoqnq tl: rmine 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 Cqkaa/2lv b+,q) by p2j 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 point C x0w/ pri+o /hfin 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 pod: 3,ggxj clp-int C in Fig. 19-5?


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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows from the battery in Figq( poh4o8oqmd4z4d : m. 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 atn3u qnes4 4f;ed, k2u+ow3iA 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 sa(z(1wc*vv32 pn8wys n vzs2t9z5otin 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 ia tk+kd2s e*/ddye6 e;n 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 t7kj5ve5gxk ccb5e; 6the 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 it5 ok4qv2lv)ncux( lvr 5m am4 x)(3o12 $\Omega$ 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 thf c7yd ox:cm3(e 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 zis*yfkp+h676(ln wj the upper left and lower left corsn(j iyp6+kz6 7 hflw*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 i/f7niw+by b 5un series. The equivalent capacitance of this combina/ b5 nyiw7fu+btion 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 across a4 (jfovm17aw- vd80o or*cox4wv+i xe 12.0-V battery. How much choj(7 0doo*4ve1 av84ixw fc r wx+mvo-arge 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 capacit(syk 7cslssj2t 0.r/f ors are connected in series across a 12.0-V battery. s tk2clrs0.s / j7ysf( What is the potential difference across the 10.0-mF capacitor?

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacitor are connected in sea p*8vtt6v y)rn3kx:0qmv/p vries across a 3.0-V battery. What is the q vrp6v:vv/0 mt k*tyn3a8p)x 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 capabyj11 4 ;thf4 ayfx.2e*lgrqucitor are connected in series across a 3.0-V battery. Wha1 jq y*y 4furtxfae. h4;g21lbt 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 mF capa rotkpd-h(a7 rcelr:9q9b; lnk/c4u 3 citors are connected in parallel across a 24-V battery. How much energy is sdr 74n rcr(l kh9 aqub-p eo39:cl/;tktored 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 mFr4fq;;pi/* ;p km kpg4n wjh2g are connected in parallel, and this pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitan pfp;wjnk; *2/ggk4hrm ;ip4qce 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 combinati 8p79b eok-e md7 ti*k)2 pkb.ckel*cjon is then connected in series with a 12.0-V battery and a 14.0-. ji)-ek oe7m2tplpbe ck d7*kk9c8*bmF 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 connected in parevc;m(*zo)0ta 0 kn geallel. The combination is then connected in series with a 12.0-V battery and a 1gen(cz0*a te)m vo;k0 4.0-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 connected in parallel. The comm4)c:clb wa. sbination is then connected in series with a clm:)a 4csb.w12.0-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 charge,m gb fb(wpg - 0-r14xhx.rnjzd 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 through aq)/vez2l5 ej l $4.0 \times 10^{6} \; \Omega$ 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. + arelb ;jhmiyk )vi1q5 g1hie1h7p8- The capacitor is initially 85;ilibahh m7 )hgjp+1y 1vkr-qe1ieuncharged. The RC combination 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-w-p6 t,gd5zs4 ,ztv tkV. It is then connected in series with a 3.0 pzdgk z4t6,v-w s,tt 5$M\Omega$ 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 int7 ol 9t(k4wc/m g9xstp vp/b aqml+n+9ernal 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 u7:9 az :jglk4lyd :eva 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 resisth) 8bq-j01 8bimvakv fance 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 c *eodv 4.:vv*(-g av it7cmno:nkx h(u5ou zh3oil 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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  • 姓名:游客(未登录)
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