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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, when n8hvd,g -)n/hpd9 v fnco current flows to an external circuit,f-nvh ph9d /8vg d,c)n 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 terminalmy:j x f5sc88sa0; +n-:dnurmn ou ov0s of a battery, when current flows to an external circuit, is referred td+ yr 0oa5mn:8 ;:xuunjonfc0-ssmv8 o 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 series2ic1xusr ,sr- zdwey)6t )l -k (ni)nq 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 connec6*.)*ti)2( oqv knsqrzyid loted 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 resis1e5m0 l/h o5dzviko bfi(jt *:tors are connected in series to a battery. If the current of 1z:jb1/omd5*hi (5ktofl vi e0 2 A flows from the battery, how much 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 connected in(v/b m cnpp0yxx*fwy;)y 1 s,9 d*xkcn series to a 12-V battery. What is the voltage acr1yyx*/ybs)dkw(; np,x0vmn c f c9x*poss 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 source, t3vgu jsjygehiw/25iy-n.4 0 ) kww+td he power sun52eikv0d/shwuw +.j tg-3)w 4yj ygipplied 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 connecte)j; 5vjilx(yo d 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 cnl-i3wii s p 5t7 h6aa3 kl+(nac/eek*an 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 to a 12-71 / :esjv w,7graxu(sxkgf/uV battery. What is the voltage of any onekewg /ur7u /sxf(s: vx7 gja1, of the resistors?

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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 inf(msbsf9 hw(4 parallel to a battery. If the current of 12 A flows from the battery, how much current fwf9ms((4b f shlows 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 i r8iqxrmvf; 156/u4vlha v bm0n parallel. What happens if one lamp burns out? (Assume negligible resistan r i45l0xfarv8b mv16v u;mh/qce in the wires 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 sourc jve(fz*nxj 4ytsn .ay,9o(+ze, the power supplied bazyn. fz*es,((j+ j on y4tv9xy 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 ident a ba8yet)-b(9bzlf (cical resistors, each of resistance R. The maximum power each can dissipazebfb 8 9a)b((yc-la tte 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 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 juncti ) qcy6sx9bmsj/:l xx6on 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 loopf 2waxd -;*akd+ kj;qc 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 *o b.qn).ban oexample 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 aj hkh8xq-bji0dn., 92hjcoy; n 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 fgycor/ c uynk.9*/fxl(8ur0emrm7i )or the circuit shown?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together in series ("+" to zfm:uf wd1*l vsck yjc.4b,+,"-" to "+" to "-"), and pbflj4, : vwcym.+u , fkzcd1*slace them in a circuit, the combination will provide

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storamwa8pz*gcfho gnh q 6w2v*,57ge batteries together in series ("+" to "-" to "-" to "+"), and place them in a circuit, the combination will **o6pav7hznfh,g2wqc g mw8 5provide

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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 togethe/by0 oyar-bd36 +nan mc5 kg.or in parallel, and place them in a circuit, the combination will providek 63anbg.y ob5a n-ro0cym/ +d

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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 capa dlx8dnf5sh2; citors are connected in series to a battery,

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are connected in series, the equivaleno(l x;azq*ps prbc/ 70t capacitance of the combipazbqxp7( o0 l/;*c srnation 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 to a battery. If a total chk*by d*sju;m9arge of ys k9d*;bum j*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 connected in parallel to a hw n8k8;pf7x)dd/f 1 yw7r, hvvpje2fbattery,

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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 capacitorsec2n 8 i0 -fhiup4bmj4,(funr are connected in parallel, the equivalent capacitance of the combination increa f4(hci, j4 -m08u rn2biunfepses.

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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. 3j pi3lxlfvrb2*6na/ If a total charge of Q flows from the battery, how much charge does each cap bljf*3ir x a3ln/6v2pacitor 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 q(b;g5- 4k2kdpjaod c fuantity 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 c.jyc0b*3qnvx zm74o f mr5j4eonnected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battn7.qm5jfm cj b3 z*4y 0eox4rvery, 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 connectv of52e1bn ge.ed in series to an ideal battery of constant terminal voltage. At e.fg5 ob evn12the moment contact is 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 of cons6qpki2q+h b f0tant terminal voltage. When this syq+p6i0hb qfk2stem 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 shoul/5kc tzufh6zv87 +k p-5ous rmd

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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 additi 5q 5je-cajcjozab04 hile27 (on 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 inu12t hgl/rc*( u k-wji a circuit consisting of one resistor and one battery. As1(* hcjwt-ilu k/ru2g 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 resistanc1zh g mahwgj)h* y 0ow:z38iy.e of an ammeter's shunt resistance

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to construct a voltmeter from a galvanometer, one normall ,++bg5zf:4fmgb k i kh,zlce7y 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 voltm; a4g-xdd, )vbe.ub dseter'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 acn u(1/v gemdqmj(5v 5gross a resistor. What happens to the total current flowing in the circuit as a result of this ad1v(u5( vgmg n/jqe 5mction?

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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, aefqss.; y0d)t oegfa *+wzq 9)s9b c9and a voltmeter is placed in parallel across both the resistor and the amme 9ybfgqa9ewc9s0 t*) dzsqs .o)fe;+ater. 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 y 9a(z7rce,rs 8vk7j useries 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 voltmeter reading by the amz7 9evrkj7acr, y s(u8meter 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 mnfc 3( z:ojw/$\Omega$ 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 vqkq)3l 0ot6*1 wrfhn 3bd tcf6f:jo1, 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, andiscfh*j u+3ej6 fv*h0 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 a 3u7jm1 w+u wtie b 1hn8+vx+vhu .7y4cw.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 .ff; jbww5xf53.0 $\Omega$ 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 pab5w3ktgm0vsx76u vs2as/ i :f rallel 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 of i+pwi1 8om69ge)ps j msc10v ca 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 ofy)e2+i9j k ,fmhun)tz 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 t*lrq w7g,cd9atg, 4zso a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwgwtr7*s l4z,qad ,g9cave. 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 c40zj- v8hkya)iik3xx onnect in parallel in a 120-V circuit without trippingx yh3)x- a08vjikz4ki 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 6rx) 14q0 zqoygzk1cvd(md h4$\Omega$ 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 wat(;2r 1n 1wvvyq5,zoi2wlc 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, 6.0, and 10.0 x k rbgw:a9ef4 jvvypfxbv;*t9k: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 an k,w4m4hytrvi,,a:tm. atj 9md 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 9vd zz.l;;nw:j8c (dty.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 k13rman0i1de and 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 thefco farmbw2x0 d-*c gos , 8ahxxn76;) 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 throughbb3f q.zw0k0fgj xf4 i3f +-kx $R_2$, 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 cirws iyp:/pf(igqg e6)xs7fdmc )x q(15 cuit in Fig. 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, determc5c :ep ;)wtuloo,ffa7kpwi-s 50)jd ine 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 Figxnu1 0-j 3-6a:cf c87xad,zu ynow.bhvws (u n. 19-4, 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, determinwla o9;sx7v79xn psrzxq9)sn 4;o5 to e 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 ofh2a)oz2jr- qwrubp c)9v qx73drl3 7c 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 poin8fe* c/cb9awz *v.ieft 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 relan/tf:3x jjh*m td m,gt8e7mp)uf 9g.xtive 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 battery in Fig. 19-d3h4p5ff7jkf jgeej7xg6; k6 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 x/jtf0 z) hxu6cji2l 2B 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 7zm hr;s5u*-k x1xb np; $\Omega$ resistor in Fig. 19-6.


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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 8 r 5jlsazor5) ;$\Omega$ 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 curren/onax90ejd ez4ec +;oc qg+d5sr+ s j;t in the 4 $\Omega$ resistor in Fig. 19-6.


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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in thwq7(ey s6*;sbhzt5:v,owef f 67e e yqe 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 tkl 4con5:dc9 qhe 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 wk;-u (a gy5qvm/+ oijzire connecting the upper left and lower left cor-5; gaz+jq/k(v yomui 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 in series. The equivalent caqpv :jyw3 zqnj9*bc -:pacitance of this com bcqw*zy-3j n:jpv:q9bination 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 *le ,ih721b vjpg5hxpare connected in series across a 12.0-V batter5hpg*h jpl x,7i evb12y. How much 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, an2 05/ szio adunc,i6hud 50.0 mF capacitors are connected in series across a 12.0-V battery. What is the potential difference across the 10.0-mF caon0 2 u,ac/dihsuz56ipacitor?

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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 seriakl o+ isq4al,.: fk1p+*wr nxes across a 3.0-V battery. What is the voltage across the 1.0-mF capacitor?q:lnk++ ,s1f 4 l r*paxko.awi

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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 ar6: nzjj t5k9,wxz nx(+pq0zeue connected in series across a 3.0-V battery. What is the voltage across the 2.0-x0zj j:5pn+z9k(,u 6tzxeqnwmF 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 mFvij-j 7lf t6pn0w 6ev6 capacitors are connected in parallel across a 24-V battery. How much energy is stored in this combin76ejj pwi0n -lvf6v t6ation 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 thajd,*ce.zms uzw6 c30 is pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitczemsa 0.z*d6j3 wuc ,ance 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 parallen2tsb;jz7s,).fnrsg7 7gz7q og+) du ym u3rgl. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivs3;y,77u gg7.ur)gon)7 m+2tfngdrjsqz zsbalent 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 paralle i-zc/ f740qe8nx9)5ehrwzte mxf fl(l. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the chargqxwe-c5z89f/0 )47 ixmznfh lte (fer e 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 combiny)6s 7y2 esg/s 3yoajgation is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage across the 6.00ys jg6s7gs 2yy/oe)a 3-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 charged throughplc 1o(hc.l2:yl +fwh 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 ch3k u c5snp)w9hdkv49u arged to 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 connected in serils)gi2t4 o1j2ga5 i8 k9utcfies with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination 5algo2i19)4tikc sj i2f gut8is 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-V. It is then connected in ser pa7xx; xlcdow/)k. yu 1dl,l+ies with a 3.0d 1ylok;/l,.lx )7axpxw udc+ $M\Omega$ 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 ig l(wfa.-q+q enternal resistance of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a milliammeter capable of reading up to 4.00 mA?

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100#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has a coil with a resistance of 2-h7w943sfigpmn(v *;2yzz4l pzq chu 4.0 $\Omega$. 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 100zdfym j wj27 ;r,ciepx1r4 m-9i) si1k $\Omega$ 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 coip2y hov3 9 .y)g8l ev0bpqqmx.7hflh 8l 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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