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习题练习：Physics Unit19: DC Circuits
本习题练习试卷来源于51fly国际课程 (https://51fly.win)， 为试卷打印版，您也可以在网站平台(https://autoconfig.51fly.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.51fly.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: physics  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 between the terminals of a battery, wtbok*b9 3pf:3r, sft mhen no current flows to an external circuit, ifrkmb3t * sp:f,to93bs 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 terminalu 997**alz9qz mfmh*o8lzuw6u mq: u ks of a battery, when current flows to an external circuit, is referred lz99q*z*u9kfmzuqu:h*m6 l w7o8 a umto 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 1 +xn9(ud4l z hwfcgi3a 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 cob7p6; tkzmtw0ewap)vbz :yn6x))a z8 nnected 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 series to ali/,b-ukzh e * battery. If the current of 12 A flows from the battery, how much current flows through any oe*ih zl-b,/uk ne 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 arehy7dk+-hu +nzi5 2w ve connected in series to a 12-V battery. What is the voltage across anyei52 wn7vhukz+-d +hy 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 source3 qbl4 wt d p54msla7lf1pa80e, the power supplied by the mtp abew7af4d sp3l5l 4q1 l80source

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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 resisto9 .r +sntrtjm 5cx +mczl)b3t7rs are connected in parallel to a battery,

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected in parallel, we can be certain thaj gv/*: *ysw82c ukv;myo,jett

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in parallel to a 12-V batterxipru1qw 7t(/ y. What is the voltage of any one of the reix/w 1ptuq(7rsistors?

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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 battery. If the 9zmxixt.1 ,op7wov . qcurrent of 12 A flows frov .,q.tix7 m1pwzxoo9m the battery, how much current flows through any one of the resistors?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lamps in a string of Christmas tree light og*y 1 z lgm/ekbi-s/lg(48ras are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wszg1lm /eyg4 *l-( a8ibokrg/ ires 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 constant voltage source, the powkw0vz4:lrm6jqf*p r (er suppl 06lvf4 mwz(*r pqj:kried by the source

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identical resistors, each of resistaqp0(q g8qqu0bnce R. The maximum power each can dissipate is P. Two of the resistors are conne0qg bpq(uq8q 0cted 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 ju66(j i at4zk+nhhdo- knction rule.
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's lootyc)u xhv .2)tp rule.
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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's loop rule is an qhgrg5 1s( / *ao:flloexample 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 r8xyr;8-q a y.jykq rl8rur1 (hcfg,m2ule 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 o6 avo uqp/ g8w;4hr2jcircuit 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 to*s/utxrhx c0r- /vh iiq/+jn/gether in series ("+" to "-" to "+" to "-"), and place them in a circ0h icvx/s iqut/jr*h/xn -r/+uit, 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 stouyaa)h1ug5z; rage batteries together in series ("+" to "-" to "-" 1)yu5uza; ghato "+"), and place 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 iqvroxsxwmcx/-c se (8(v-50 q dentical storage batteries together in parallel, and place them in a circuit, the combss x -q58m/xc -e0xq((v owrvcination 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 seri6(yb9c- atp kbxt(rutz2 c06 z,-ptf5:m ixe les to a battery,

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitor wh ;gvcr :9j7osbtl/a:)-bdcs are connected in series, the equivalent capacitance of the combinationcs/b7a:-d g)lwt 9;ovc brh:j 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 co (bd:a(a v +9g6o1m(,d u vvkuzxeo:whnnected in series to a battery. If a total charge odw+,aa(o 6(1 gk vuuhb :dovv:z(em x9f 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 are connected8)-+xns* guiz snowd+-v ozy ; 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, rmi): cyi5o3i,l ij)v0q,oafthe equivalent capacitance ojv,fico ,) ir: i5q)30laoyimf 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 batte6r;sml 33f,s wnhwaj+7 ik/p 7 *cqttvry. If a total charge of Q flows from the batt7qra3 *tc /lmpfnk73t hjs swi,6 +v;wery, 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 quantity RC?ztz( -l9x 5ql rffquvg.v) /x7

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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 se lwch7/,owq(g ries to an ideal battery of constant terminal voltage. At the moment contact is made with the baw7lh /g(,cowq ttery, 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 o4;nj1efj;i6a z/s bczfq9f .0 82w (xdal nwvtf constant terminal voltage. At the moment contact is made n;qtb8dx je;wza 41096f/l2 z(afcf ni.w svj 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 conne,4j xtv lyq9o1cted in series to an ideal battery of constant terminal voltage. When this system reaches its steady-state, the voltage across the resistoroy,tq419l xj v 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 sho6n-9hhw)z,. sq s lh axxp/8osuld

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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 conx1 qhpx 8bppwr 2h j4k+ rdmu)eb6552yverted to an 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 ammeter in a c p*2eb/ttjf-);wtpbz (q.cpxhe(yf /ircuit consisting of one resistor and one battbejftq;h(w bpe ( x- ty2p/ zfct)/*p.ery. 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 vyyd 5kfx.gdq. xbqp : ,w,)+ cc+3gg1cv7sbd 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 m+6houn 3+ qu7z.iywjfrom 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 voltmeter's sevh;f:3,cx:,pjofb6 h) m.drp reuzo4ries 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 voltmeterg9 7ywk3say(z: vvw6v0od + cw across a resistor. What happens to the total current flowing in the circuit as a result(3gw :d v0v6oay v7zykwws9+ c 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 pbzgt-+ cm 83p9qeqa+ wired 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 computes the value of the resistance by dividing the voltmeter reading by the ammeter+ztq 9qmbp 8g+e -a3cp 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 dwn ar5wmolw, pg8385wired in series with an ammeter, and a voltmeter is placed in parallel across the resistor only. This netwo3w gnawrd,l5w8 p8m5 ork 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 ue +a 6fajt nd0/0*cwv4.0 $\Omega$ 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, an yg;l-9x0xcj pd 6.0 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12, 12, and 6w2 v-h,cbfw 4n.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 seri 0c:;weujky hzs: :af.ggeh94 h6j zj(es 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 combin l0w5put uj0kr29ch.cation 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 intoefa*f6 e5xbh1 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 parallu dccw qk (1qkbm4772cel combination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 6.0 $\Omega$ resistor?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows 8((pf 6 c6 m)vv j)rwrgsl+h s+nzah7tinto 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 ak7dzh 12 vz;zconnected to a 120-V circuit: 1200-W toaster, 650-W cah 2;v 1z7zzkdoffee pot, and 600-W microwave. 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 numbe2xqh hf5-kpm x*k(hrf du.og 1h6cw8 oww,; :hr of 100-W light bulbs you can connect in parallel in a 120-V circuit without t (;u,hhmh -8qrxkwowdwc.1h fh5 : pfx2k6o g*ripping 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 0(duc.v o xi4nk5wbo7 $\Omega$ 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 30 5wc wm)r ad-py u*n8 qju+*x2u$\Omega$ 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, :1h/sja 8jbag0fu3o pand 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 4np: 5.naz n9c bt0)2efstcpc 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 4.0 $\Omega$ resistor?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 and 9..rkzthy3p9jc8 86y5s n)im gv*zuw)j0 $\Omega$ 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 an+.gqwpse 3v; rn p bozr13:f4nd 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 c qzr1c-.x1oo4kec)8 c yitsryr -:.ycircuit 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 througvyw9 wy+, xmt/h $R_2$, 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. 19-2-es-3 x x(hyf6qzq- g)bd vod3?


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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. n +pmro7/-jlp 19-4, 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. 19-4,7 - t/ceip+vie 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, determines 5+36 e)fix(v krimtn 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 ofgra90dt*cw,+m+m + j;efktp f point A relative 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 p;c7 * ,lwjxp )s uqcv/kc)elt20 e/lpzoint 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 potential of point D relative to point C in Fig. 1 pbi7n68d7jyz qr0h,z9-5?


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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 batter:b7/zq ec3ym00l;g ;tfdc *lbrg, rrw y 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 from poinh.g* 2t 3s1 h0xextjuwt 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 + ( 3w+z aoasq, d78ernjrv7yi7 $\Omega$ 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 th rknu w,:;fjm1nr iy4,e 8 $\Omega$ resistor in Fig. 19-6.


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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 4e y /j4zeuj1-p(h( ,aqumt; au $\Omega$ 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 1cd5kiqqa /fub*z,6;9 n nai)g2 $\Omega$ 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 thez) 9 )rq(meyqz 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 inlfk28 ee -juk/h11an* mlz0qd the solid wire connecting the upper left and lower left corners?2l8fkq de1l -k0j/en ua1hzm*

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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 seib;/3:titosb f qxfst 1/ 79ehries. The equivalent capacitance of this combina: 3b;9 tihsft1tfei/ 7o/xsbqtion 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 a 12.0oc -1k55ijl)eqr9ie r z i bh)op(9xg:-V battery. How much charge is stored in the 5.00-mF qxiorz) ebc):- 1oh9j59pkeigl(5ir 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 inox 1ppmz *m;n* series across a 12.0-V battery. W*zom* mp1x np;hat 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 connaar) f5h2w3erected in series across a 3.0-V battery. What is the voltage across the 1.02aer5rhaw) 3 f-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 acrossd(o6 ka3fq yyix :3ti: a 3.0-V battery. What is the voltage acroi yi 36y(xfqo3 tkda::ss 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 7l7zat wl xv1.kw1(i.zfb b6k 3.0 mF capacitors are connected in parallel across a 24-V battery. How much energy is stored in this combinatia7z w(.7bkll.vzkib w6x11tf on 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 pa f;lgehd7u ( m+i:uum -0lzl9jir is then connected in series with a 30-mF capacitor. What is the equivalent capacitance of this7 e0jl z(9l :mm ghf+iulu;ud- 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) ut/mwbl gpx-vhe4h3b07ce 6 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 equivalent c t e6h/b lgc7xmwb3ph 0v4-u)eapacitance?

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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 parallel. The cf5*g;hisbrirobuh p k 54;3go 47buj.ombination is then connected in series with a 12.0-V battery and a 14.0-mF capacito*gu34;uh kg5i b 7hrpi5bo; r.4fbojs r. 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)gbdye6-ab r wt72p c) 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 capacitoe 6t)rwcg pybb2)7-dar?

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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 c-qvoit+1s qhd; 57j1dsy;-o0t tu anq 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 through/4 )yf4gsfw8b1 xb8dn gml txl0p r6 4ivp:hi0 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 g(0yrp ff)hjipm vof,;+c rhn(3 * g9ein series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the c0gfr+ m fiprn;p,efchh3o*(vj) g(9yhange in voltage between t = $RC$ and t = $3RC$?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-mF capacitor is charged to 6.0-V. It is then connected in cg uf*fw9il8uq4jg5u9apq 5a;l9 1ttseries with a 3.0 ;f 5f89ucl ju p *u54g9ai9q lgattw1q$M\Omega$ 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 1 (w 6dr:m0g(iwgfbr8aapdx 9.00 $\Omega$ 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 wj rp (4hbr3bh39*wvawith a resistance of 24.0 $\Omega$. A current of 180 mA causes full-scale deflection. If the galvanometer is to be used to construct an ammeter that deflects full scale for
10.0 A, which resistor is required?

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101#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has an internaf2 p nf0-gj1 usclm mng0(a.qy2sl+o/ l 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 coilv7+*xyif 1,y ob 7 a7fsmbfs4e 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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