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习题练习：Physics Unit19: DC Circuits
本习题练习来源于51fly国际课程 (https://51fly.win)，是在线习题练习的打印版，您也可以访问本平台网站(https://51fly.win/)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://51fly.win/test77.html
 作者: physics  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 the terminals of a battery, fh)q :ndzh(/b when no current flows to an external circuit, is referred to as thebqhfd/z n(: )h

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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 tew+5nb);3w e df.dwkq crminals of a battery, when current flows to an external circuit, is ref3+;qc ew fbkw5dwn)d.erred to as the

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected in series to a bam5,-u2rg5z(d+m) i snp + c jmud,:6urlxtnmgttery

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected ,k0i4jt8xu eaf 8/r jhin 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 a battery. If thy(xyg m;/ynuuma1, p;e current of 12 A flows from the battery, ho m1;a;yxygpu,m( yu n/w 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 series to a 12-V battery.+c yk:oym73 rssc3ijj lto 4:,b7y vq4 What is the 7kc 4o+yri7o3:ym t :s4j3ljvcbsyq,voltage across any one of the resistors?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You obtain a 100 $\Omega$ light bulb and a 50 $\Omega$ light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. Which statement is correct?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in series to a constant vol;(x wkdvie/pl5c s fzxp;x( /*tage source, the power supplied b(/vx xfpxw/5 dp;kzei;s l*c(y 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 tfbs:. a dvo)y7o 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 conneyguy8et20s 9 l l/a:dl4;5 t4rjhqseqcted in 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 connected in parallel to a 12-V battery. What is un6 fmzh,1xx7 the voltage of any one of the resistmuxx7 6f,hnz 1ors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors a9+ :hb)dhg j h;jkmw8ema2hi4re connected in parallel to a battery. If the current of 12 A flows from the battery, how much current flows28 w be49:h+h dig;aj mh)kjmh 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 Christe d39m ydvej2.mas tree lights are connected in parallel. What happens if one lamp yd3e.m ejv29d burns out? (Assume negligible resistance 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 tf-o)z00htd:flhjo u 6t2k 1rs o a constant voltage source, the power s 1ft6h -lhok0)tf:s2d oz0ujr upplied 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 r;e1e7s st gt4-t(k 9 t4pmvvxcduqe7:esistance R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected in parallel with these two. What is the:e7-um7 e4 ttpdg1kts(4v;q9 tes cv x 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 ruleu7 v*k+e m5yq +3itdwxm+;s zz.
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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 rulbuwx g62,pm:bz)c3wf e.
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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 tdur9m5t:srt;) c tab 9.bc:rpq4bg8example 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 rul:;9aubx7 le)oi( ogog e is an example of

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the equationsmug,z yjccw9)yb3 99o 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 batteries toge nxc4yaa 0k5amd 67(huther in series ("+" to "-" to "+" to "-"), and place them in a cir6 5cauh(x7ad0nkma y 4cuit, 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 batte ezdwrx c255 0lone:6tries together in series ("+" to "-" to " 5:5oc 0d2z6er nltewx-" to "+"), 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 identical dphes hy gj c2068b+3mstorage batteries together in parallel, and place them in a circuit, the com 63sch2j0y+mb hge8pd bination 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 ba a gv6 6u+)pf+ td(zy+v,jjlgyttery,

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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 f 6liecjz2;8 uin series, the equivalent capacitance of the combin;z lce 62j8ifuation 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 b d, 8 z:hrd4k+oe9gjjpattery. If a total charge of Q flows from thejd +kzh o9,gr8j:e p4d 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 paralle 2losslt1fbmdk(j,3z68al 8 jl 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, the e7 ol3qj-/hwih quivalent capacitance of thow7hqi h -j/3le 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 parallm -skv ,oph:+. ihdzph+ o6hi6el to a battery. If a total charge of Q f6., o6do k :+i-h+hshhvpmpzilows 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 forbxmpx;11e4 vk the quantity 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 capacitoayzud*)5274 rbkz f p( sdg9svr are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the baa7ds )*2zkb ug s9r4y(5v pdzfttery, 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 c i2qsse,ga v:e+z (2eeonnected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the baqeivess:2 +a,2(g ezettery, 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 idealp: ntjb nxco1w4g vk054vf8 r(z 2xao1 battery of constant terminal2zoa1185r0v4fgkjcnn(xx wt v :b 4p o voltage. 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 shouxwf*2k,hwl 6 hld

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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 t/ 6b ljbx,0nouo 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 bc*- kyt4.;uye((x f q.qjo yn)t6njvmy properly placing an ammeter in a circuit consisting of one r;n.eqy(*muc(k)y 6 t jnvf.j-oy4t xq esistor 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 ammeter's shunt res/h/)7)fg.7 dh*gu p4(lkt ptmii tejl istance

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to constructlc zjk3rka m02: dmg06 a 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 voltmeter's series resistanc6dq gnxd x5yyk5nn96 -. z1sbye

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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 qbf2)0zu wl90no m a5qobtained by placing a voltmeter across a resistor. What happens to the total current flowing in the circuit as a result of thq20f)0luo b zm59a nqwis 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 icrzap f 9u*bt6(nt* 7is5;zu p(:tsx js wired in series with an ammeter, and a voltmeter is placed in parallel across both the re*:tu*u(c57an9jtbt6 xr;zi zss p f(psistor 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 reading, the value obtained

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wired in series with an ammeter, ) f k*ei. l(/nx(qv4 +kbvsiepand a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If one computes the value of tpi *b/el(ke.ns4vxv)+ q (kfihe 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, kd ;qhx6o 7nm1fc 02,smv .iqiand 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, hy 7t(lzxv 7 (dkha8:crzy g9*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 12,9,bq3 m,fjh1g;vprm f 12, and 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 3.0 )ugwhs4u*xum z e;7r+$\Omega$ 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 flows4paav ,/z/q fai 5z0 qq52brgq into a series 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 combinatt/0 wgl ziug:* c9g1vbicn0g(t6pwd ) ion 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 wc 1ed a; gl/4kpm,8zn(x4h zjjyh ;2bcombination 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 in4sgv9 8hf he0t2mpqq(7lbh53r9 wrhpto 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 rhh zi+v6kdqm y+(o,8: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at h6 +kyqm hd(ri,8+ovzthe 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 b b50rth9r, nmin parallel in a 120-V circrt,b5 0hrnm 9buit without tripping a 20-A circuit breaker?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A combination of 2.0xb5g* 7/x.-vaa3biju ty/c3j0eht aq $\Omega$ 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 andq:u*b b48ippt y9ih 8 eqg3j/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, 6.0, -2 rs 5ih3rtifand 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 9.0 :f-sw76sy(tz q tvw:t$\Omega$ 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 ce1;isps4 zd89h v6 inand 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 and 9.0nww9;gpz uzz 59ce p cfk7.6d. $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 9.0 $\Omega$ resistor?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.0 $\Omega$ resistor is connected in parallel with a 6.0 $\Omega$ resistor. This combination is connected in series with a 4.0 $\Omega$ resistor. The resistors are connected to a 12-volt battery. How much power is dissipated in the 3.0 $\Omega$ resistor?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total resistance of the circuit inzpvs+9h+(7tq0 xgklw 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 throughei j/6/tgdd rc5l7bv, $R_2$, 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 thy f:g r-;kvlf8e circuit 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, deteok * gns zi76q2t.uss.rmine 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, determinjkqdbihd 3prh;/; mc4 h0k3 g0e 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, determine the current i7)sxs/t 3encd-;arka n the 4 $\Omega$ resistor.


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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point A relative to point C invq6bc,gbzh 1,c1 in vst d.n4: 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 in Fig. 1wir -i0yhtd919-5?


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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 F.h tiviknuh8qj4 0m:)ig. 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. 1fm( hnac/af8vi kkg, 8u.e *i)9-5?


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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potentia*e0qlgcut) :9l 2sh : ixo2es9.h bmpil drop from point A to point B in Fig. 19-5?


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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 7 i(pbfs10o cbxby :;yi x kk-*,$\Omega$ 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 i2a1dhy*4 j 2d ip4y c)ebko/tdn 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 the 4 .ubpy1:, ram d$\Omega$ 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 b k6v2gbinr;658 bbqn 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 thj ((vczo cg5w 8vnl.r)t).vl/ozn;rbe 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 the upper left and lower left 4ic ziqk-qq5v3-b 9 abcorner5zibkiqc4v3 9 bqq-a-s?

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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 epx)(-ji;e 44 el 4ic:dpem5v*kp omehquivalent capacitance of thisc4 de:)4- ekixo5 epvpm(el;4pj*hmi combination 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 acrossq a9ggp*k z+e3 +jrlh5 a 12.0-V battery. How much charge ik h+5ep+gra9 ljz3*g qs 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 capacitors are conk8sjjd.b-2yms b *,ja nected in series across a 12.0-V battery. What is the potentij2s smk.-,by 8jj*bdaal 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 series across a 3.0v2.2x0s5hnj p ad+ lca-V battery. jpna2x0a5 hv. cdl2+sWhat is the voltage across the 1.0-mF capacitor?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacd n2pe+hz8 hs,itor are connected in series across a 3.0-V battery. What is the voltage acro ps2, h8+zhendss 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 connected in parallely x.s .oal-t.p across a 24-V battery. Hp.lto.- .ysxa ow much 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 this pairu e 13fzfdlwcy z7g+8fwj:b44 is then connected in series with a 30-mF capacitor. What is the equivalent capacitance of this arra7wz8f 1l:eyz jf wb443c+f dgungement?

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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 combu6kk,f33 ky wy:dgi n*ination is then connected in serii6d*3ugf y3wnykk ,k :es 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 are connected in payzwl;geeb( *;rallel. The combination is then connected in seriz; w;gel ye*(bes with 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.k8umj qekfpm /f/-n ob:tu8+300 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 thenp bqj mt+8fue:/-ku38fk om / 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 charged thr 8wo g(z5 rk+:nt,gcwiough 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 chz) pm.9bw31p nxmak h3arged 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 series with a 0.50-mF capacitor. The 4 kgw vm8o)0xacapacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. Whvm8 4 go0xa)kwat 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 chargedsc ssss7-bx 4+ d0z;us/+eg)doty4 ip to 6.0-V. It is then connected in series with a 30sgsiy/;ds s u+4bxe4pc-s +7t dz)s o.0 $M\Omega$ 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 r 5f tm5xflin:-j) m,0:lsz tdqesistance 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 coilbkgf1 -i4pya0h: ea2q with 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 isn kx h79 asqa3m745crnternal 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 cyqo/zv elz8:v+*g a ,goil 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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本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师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
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