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习题练习：Physics Unit19: DC Circuits
本习题练习来源于题库网 (https://tiku.one)，是在线习题练习的打印版，您也可以访问本平台网站(https://tiku.one/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 77 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；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。本试卷的直接作答链接 https://tiku.one/test77.html
 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 th4 dc*ixz,cv-w ck,ta4 l) z)uwe terminals of a battery, when no current flows to an external circuit, is refe,w) tzkl 4w 4daix*czcvu, )-crred 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 tern7,u xa2 dm asbod octa369n1-minals of a battery, when current flows to an ext9adno,m 6bda 13au2xsno7-t cernal circuit, is 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 connecj8v2k6z. o hgv)*ek mated 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 connec m 4/if 9ajkc:o4swri 76aelt2ted 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 convkcvhz4h by:m+lz m;k(p )9u.nected in series to a battery. If the current of 12 A flows from the battery, how much current flows through any one of y)m4k 9hbzhp m:zlu.k;v (+cvthe 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 bat+ cj4ktz:0axkes98ie+9iy f z tery. What is the volt k k9+ietxjizec :yz8s94+a0 fage 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 s1kibr8j..i zb6 y uu;fource, the power supplied by thjbui.f.;i6k y8 u zr1be 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 ar2/i3 go2yts o d0as+gze 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 inr-bci. o+ t9*u0 ucf:h8hb,t:oriad d parallel, 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 connvr3 objboag *o/c-+hp2m( cn7ected in parallel to a 12-V battery. What is the voltage of any one of the resistor*bo 2n jga+7(oc3mhbrv c /po-s?

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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 parallrn0ds+o b,x4o el to a battery. If the current of 12 A flows from the battery, how much cs nox4+bo r0d,urrent 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 tre 2c v/jgc-e;);s- j wfzgt-:ug w2i aijtd:3hze lights are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wiress2j dzh/gi -c v--wf;wji uj;t):a2 :gce gz3t 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 a consn dj9 )yb i)lzl0;c4jre2uxdpzq*q80 tant voltage source, the power supplied by the sourcelz pjzqu )cr)*0byij d e28lqn xd;049

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identical resistorsc9ortxz5p -/g l 9v 6tfpx7sc*fid3c+, each of resistance R. The maximum power each can dissipate is P. Two ofripf 5vz9o xg-x7ctt+c6ls f9* c 3d/p the resistors are connected in series, and a third is 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 junction ruwf,3ju4e xebvd5 ;3dc le.
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's loo*x8 ke+h9ghnkp .f/ml+f g+l1bf,s aj p 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 anj dln u5iz4+.tol 6x;uog.c1b 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 examrm1ocg7 wdg 9 tsta(n o) 7*yzdc.v6q3ple 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 circuitq2u ccr*6nwvk 8a8cf 9 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 ("+" ttw60/d vt2 jcco "-" to "+" to "-"), and place them inv6wdc0/j t2ct 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 z6 ,aztm hk:aenyl;xr 87:e.q together in series ("+" to "-" to "-" to "+"), and place them in a circuit,;aylq a.mkxrtz8,ze76 h:n:e 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 place tq +oi(vxx -+iyhem in a c(yxqo v +ii+x-ircuit, 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 connected in series to a bat;/1eqq:dp p x4xrter5: o5sfdtery,

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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 serixcy,m3b5qv tg;)bm2g)nz;g k es, the equivalent capacitance of the combination incrency2 b5 xt;;k mqz3vgg ,)bg)mases.

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capa394pj nq ztnaai )q*3rcitors are connected in series to a battery. If a total charge of Q flows from the battery, how much charge jpi*4ar3qzt3nnq a)9 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 ared*) (nc43xhwofyo8f :hcj+6bnp fom*rbze 5( 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 connetjltf jkms5 n/,xa1mbd6- *m)cted in parallel, the equivalent capacitance xt,-j61 jlm ns5d/btmfk*)am of 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 in parallel to a battery. I c.o2k8. cmu yvvp)a8bf a total charge of Q f2k 8 vucb.avompc8y.)lows 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 qu+) dh xaroi q,ig) :a hd*/sn:,gb2dulantity 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 conn63chza 5wg625cy yoaiected in series to an ideal battery of constant terminal voltage. At the moment y h6o az5562wcgc3yaicontact 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 serie2rofw.gtfsu0 h x7e+ /jrx+ 9us to an ideal battery of constant terminal voltage. At the moment contact is made with the battery xr2g+fse 7 utrxuwh jf/+o.90, 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 id eh)llfh4mx, pi, h4k0+fvoi(eal battery of constant terminal voltage. When this system reaches itsl+ 4)phxmkl ifo(i 0,, fhehv4 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 shouldj/5v/,g kigziw : hams i0dwu7e0od6 *

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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 3 (abkn3hxjt)ammeter by the addition of a

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A current reading is obtained by properly placing an amo ekfjn iipau/9)./1umeter in a circuit consistingo1fp /u)nj.k ae/iui9 of one resistor 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 resistance of an amme fp0fbxp1a8f/ 5a qm9qd:jbt0ter'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 4hr8 zh,u k..scu gm2tna2 l8aa 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 resistance of a voltmeter9 s bbc k tf9c4r1c2o-*u/dtgb'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 across a resistor. What dcj 0 28yv;odrhappens to the total current flowing in djdo0r v2 ;cy8the 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 s ooht-egf1m u8c j s)-9w0.i:7lhd rkwired in series 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 one comts7 0hwjed).ri8 :s1--kfglu 9ch oomputes 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 isg;/5qvlk/rl 9 xf x,ro wired in series with an ammeter, and a voltmeter is placed in pa,5x/klrlxvqf/ ;ogr 9rallel across the resistor 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,)2tor+g hipe9 w)ji / k)*vqni 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 12kz mopv s+-kmrn8p 5n/9(5r ti, 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, anqebpto;o4h wd 9smx9)9di s3 3.4jjqed 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 combinr ,la hkhl2j-n19gp6ec b)6w nation 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 sex6i);eke0 vazex:tl4 ries 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 combination oicf:bo/xf 6o0f 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 combinaac*m;oh ;a n:xq fk10ution 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 4.0l5j qp *e1x)cl $\Omega$, 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 connectxn;7-,mbzgyfi q**:c elcw)yed to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. : c 7-gw )byxeiyflznc m*q;,*If all were operated 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 connect in paralywx:s pc4k8fch* h.4.cm,w pf lel in a 120-V circuit without tripping a 20-A circ ,mxc8 fcs 4..y:hfwpk4*chwpuit 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 f/7) ef s5k3 o-vlh1yhsfozj sai6-2m$\Omega$ 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 u 66k .y t;*i ifoot+au;5jqpx30 $\Omega$ 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.;jxi c2- tv) wvb2sm*(.kapms 0, 6.0, 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 9 . ug8iu)li:y x14irbcfvu60 t.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 o vx.y .j+ty8wand 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 5.0 $\Omega$ resistor?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 att ..+fpi.r 8wlzwkob6 y;yqcfhr7.:nd 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 circ lsg.k: 9utpq.uit 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 q/ot0 z-) qlgb$R_2$, 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 Figo2n4 wu4kmri1 . 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. 19-4,2y,*8 bl i :qbfvixwyl2p. :ysug+e3l 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 cuc5vd4a 8 mq54/g0c ;a eua3bne 5rapnol*za(frrent 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, detekv8z wdvr/r )0;tz)ox, :hqjprmine 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 relathegr/ /rf4w0n x(pw, aive to point C in Fig. 19-5?


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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point B relative to pointxd:,hmv +, 5 bsu7l6uhimbh-k 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 poinshy/5+ x,v9j xtd-mb7x gg 3ikt 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 inn sgc24aovp odimuzyykft86f +f37.+ 0y 3f,h Fig. 19-5?


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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential drop from point A to point B3f wsq*-hq r(c 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 ab99ku6,a gc69j p/ jqsnmt *n7 $\Omega$ 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 i 5cohe:g/4i22 )u4sxwvzgv athe 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 td pmyf w.ozun-c4eb5tnh-* + +he 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 iuy ud-q id:3 q7ep, :*u1wbegtn 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 8pq.x6c: r*mey7j96cgfxu w.(fc mpw 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 et5vd(2ihpi(f:h.dc 8 ; mwelthe solid wire connecting the upper left and lower left cor mdwv2 8pdt5ieheci:((.f; lhners?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 16 mF capacitors are connected in series. The equivalent capacitance of t9:ggp nxahxj;+h mfnx5:ky4x ro; ,2 qhis combination i, 5fp+mx:x 9yxrk nh;gj xq4;2 g:ohans

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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 ark;thf )l 5,wzqo-j:pg e connected in series across a 12.0-V battery. How much charge is stored in the 5.00-mF :;oq5w,p-gfl ) tzhj kcapacitor?

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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 series across a 1a3i4ci43s1 oivkz *j f2.0-V battery. What is the potential difference across the 10.0-mF c oj4*iv 4f 3asi3kczi1apacitor?

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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-mF0bqu zqi,:3r5iups,bg*dk *j capacitor are connected in series across a 3.0-V battery. What is the voltage across the 1.0-,bjiz qd*ru5:kg* bpsi 0 u3q,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. pqdw3-l epd- ,w*yyg(0-V battery. What is twded -pqlwg (3yyp -,*he 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 connecn;2*moj6essnv97y s d ted in parallel across a 24-V battery. How muchny2 ejn7mv s*os; 9s6d energy is 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 m*wjjb don 5 v7;93rsvthis pair is then connected in seri3;jm *sw7vd 5bon jrv9es with 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 combndp eex*a2dt n3q*nr-pa8n ;j80r1 t tination is then connected i18 ad-2;rejn0rtapptnqen**d xn3 t8n series with 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 6.00 mF and 8.00 mF+x1a7: g/ije (frkiuw are connected in parallel. The combination is then connected in series wiekri (w/1a7j : guf+xith a 12.0-V battery and 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 6.00j zq2x8 3c8ckiu u;.nqqtr7o- mF and 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage across the 6.00-mF capno cq8q3.u;j- xq z7u28 tikcracitor?

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95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged throg b b94l5ea3g+mc .puf(sf ;3f7qmuyrugh 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 tojw ;tgjb9kjck +dv7: * lcgs;4 12 V and then discharged through 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 connecw:2 t4cyucg ; ;xe6qxzted in series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. Whcc ;u yg24qwxz: 6tex;at 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 c1 wpe k j4wdfttj-so:v6o1 f 2hzf,; gb3bm/2sonnected in series with a 3.0gk-jdo1: /64s v2h sptfobwewb mt2; 3jff1z, $M\Omega$ 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 oec jke(5aiz+xn )h,t )f 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 resistanse1eciij+,x; 7a3x7e:fr crdce 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 resistance of 100cvr.d2uq :3h )v+zthn $\Omega$ 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 resistanc wa3r c qx6;rsnjdx)sw-/l4tu e6 17mre 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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