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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 t79drv z ynx3)4m, xg xnat3-jqerminals of a battery, when no current flows to an external circuit, is r4z,nax-n3gx3qm9y jxd t7 v)referred to as the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference between the terminals of a batteb37wv .u ,0gj8qfoxjury, when current flows to an exte7gb f8w,o0 jj.uuq v3xrnal 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 connected in series to a batqie 0b4/* qgr9cdok q*tery

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are conne qrbu a+wa9;fgm)-v, xcted 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 serok45(ag ko d( 9i00hq/ lojdvbies to a battery. If the current of 12 A flows from the09(ikdkdgb q4hv l/0a(jooo 5 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 series to a 12-V battery. 51 l+ab f2 pahhofl-o)What is the voltage across2hla p+)1 5 bhfal-foo 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 v9c(mp3y7 b dahy ;u(arx/ yq845ja4 wsgdk q.toltage source, the power supplied by the s785am;rjy9u dgx/ yy.ac43h( wtb(ks dpqaq4ource

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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 conn:b5k7 a dq7dfu x2+veiz) 9rlqected 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 cedn o ;u-wua( jk b /l/ozzl63:(kl6c)tttnk;zrtain that

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resi.ws+lc: sf.llrh0, kistors are connected in parallel to a 12-V battery. What is the voltage of:,l0sl+.r c.fi ws klh any one 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 in parallel to a batterf3uucj) xpzro4(405(om 1talkw2 *nclcnr + sy. If the current of 1fs* c p5onj4ulr( rk1t0u l3 +oa(mnc)4zx2cw2 A flows from 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 lights are connected in parallel.,u5n x k+r7lox2 ,viak What happens if one lamp burns out? (Assume negligible resistance in the wires leading to thekx von akr2lx,i+7, u5 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 power.vc17hkhm;:*g w ztor supplied by t v.z * 1c;rmghk7wo:thhe 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 resistance Rh;c 1lsdp.,ke. The maximum power each can dissipate is P. Two of the resisto1hpds; cl k,.ers 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 junctid kc(wr3)xz6 oon 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 loo5*gnw)jrvt d-i;iuvj7 p/9u.c c 9lwzp 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 examp d)b, jp kh1uj4:oyfv kp,j4d4le 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 exampl-bj(1m cu6i te/ms8h.w3vfl je 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 valid6wm4xxq rohd( 2bq aa :ztb sk10g -:xkq14/rr 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 storasad(sa*ko9* 1 oe9 . c-n6 ijp7bizchgzr0(btge batteries together in series ("+" to "-" to "+" to "-"), and1 tajh i0c-*bb7icno.(6skze pr9z g*d(o9 sa place 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 identicax)dj 3l8d +hq2w.lz yyl storage batteries together in series ("+" to "-" to "-" to "+"), and place them in a circuit, the combination2zxy+ y)q h3d8dwljl . 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 bat d /qd2h hgbhb)xto00 uqy1k9 ,x;jav/teries together in parallel, and place them in a circuit, the combination/o0qd9hd yth;ga )2 xb jk/1,hqxu0vb 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 csk6/ w*kapzi8 onnected 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 equivalent caz o2-e 7ctxt5wqo)s4 ppacitance of the combination w7coe)zt-sq 4 po25t xincreases.

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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 batteryddpt3lf l8p5fsb )8h3. If a total charge of Q flows from the battery, how much charge does each capacitor t)b pdls3d8h5pf3f 8l 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 aldy7xy-v 4v8k0iea 4q 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 paradw5ylkuh (7fh .-dq9 jllel, the equivalent capacitance of the combinatf-l95( hh7.y dwkdjuq ion increases.

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitoa;*ff/ nbli .8wb f)jdghu-+p rs are connected in parallel to a battery. If a total charge of Q flows from the b j nah)u.fg/;l+pfif -*dbwb8attery, 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 quantl rvujd *s2 s0oe2)cd)ity RC?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in serij jsr9oguj/m((,+ o xmes to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across rm9usg( , jm xjj(o+/othe 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 in0hm-bf k l4g*dbu: o. /efqxl6 series to an ideal battery of constant termllgoqxeuf k- 0/6.dbm*: 4h fbinal voltage. At the 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 b y;cxzl..c7jcc3*n ak+ mm se(q8d,eiattery of constant terminal voltage kc8,n +ec7.czeaqi 3.mm cls yjx*(d;. 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 shot;z6e tk7pmand+k + y9uld

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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 tf7;k/*cca d s cz86jerzsea)6he 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 circuit co1cl7-jt cjc1pj .rm/i nsisting of one resistor and one battery. Amtcj1 ic c7jjp. r1l/-s 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 resist ;d3f.c yb0bzmance

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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 galvanomet8jcri52.of6,dng ( o5bm brcher, 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 arov f;anj v :8f)a,hg7 voltmeter's series resistance

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A voltage reading is obtained by placing a voltmeter acrosa0s itsqvf25/u86n eds a resistor. What hae5a d8 nuv6s/sit20fqppens to the total current flowing in the 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 wired in series with an ammeter .q jor19eccunec wl6sd,k2lv:(+ k:l, and a voltmeter is placed in parallel acros w+(vde:k c cll or6nquks.,ec1 j:29ls 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 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, an2 5 8vbuionl1 .5-/i x6wmzhcm5qfuiq d 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 diz ilv/x 5mho8imq bq-162n.5 cifw5uuviding 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,pfst, j3- xuw( 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 1h-8qh21j niq t2, 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, 12vp28*se2 u dyp, 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 3.0vl-;7e0 8 pbsj9uidtzn kq/y5 $\Omega$ 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 combinat jaqqmex 5)p+6ion 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 combinf2e 2 ptm4d0jlation 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 combinatibye256h q/b /v zzsdx ve.xl*/on 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 pa/bjrp.3w :slrrallel 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: 1200-W toasti.4e4y 3- vrfawk,v+ 4bof lyler, 650-W coffee pot, and 600-W microwave44kaoewi+l4 yvb,f -vrl f.y3 . 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 connectncl:pf ;z42yy j0ln, 1xommd6kjqm 16 in parallel in a 120-V circuit without tripping a 20-A circuit bjl:j11z4 ny fkm nd q oym26m,6cx0pl;reaker?

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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 o.8 h1blw:sz h$\Omega$ 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 an j/3irrw53/y qv.grux 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 4.0ahwudsj*p gzjvb6 ; u0)ddq13ux*+)vaua:n 2, 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 anhl7- 2r9b f*k jayc(bjd 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 9.0 :ej4dk a tj6iet/bj23o g o07u9ipek 5$\Omega$ 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 r9jcwib/u( scib73vk6 c)g j-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 circuiw-/z(vjcx4p admyu1q5 ;n( d ot 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 throujggwk g6-x7 + 4jl2guygh $R_2$, 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 resistanl:k()hbj*kzb mywq 2 1ce of the 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, determine the current ix( 2*4;xxoqhnp 6p-vjx9 m ljrn 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 currenq2a2 fm/1u; rktvxi*hq(c/ky t 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 in the 4i rao92:t2vmp h89 nobiw-u(g $\Omega$ 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 br,c/w-th jy)v(q+ k ipoint 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 pg)koe) cl )9idoint 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 relativeeaykp(.3pxy jr 1sw1c m7f. ,f 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 fr2 en7 9mvg7iyuom the battery 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 pysq tl*f,bm(+oint 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 vf0m0f76y- pninthy ($\Omega$ 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 theu1 s -teno91ub 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 h)9xjs q+e-br 4 $\Omega$ resistor in Fig. 19-6.


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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the 1zi)r wm2ry,b: s0;6z pssap 1w2 $\Omega$ 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 in9 rdalo2a ;lu+4gr* fweu1mb8 the 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 an ikb.-f wumi48d lower left co.k fwii4-8m burners?

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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* 6 41,+nb 5ilj s4hznpdi-esr rfaie1 this combination r6dp h4sz +i n*-i5e4r1ibs afjnl,1eis

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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 oph-h v3rf+ 3f12.0-V battery. How much charge is stored in t3hop3hr- + fvfhe 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 50.0l5 tpq*( r4jm4ptlte3z6:/jba rn6um mF capacitors are connected in series across a 12.0-V battery. What is the potential differencp546 r n: a6 lqjt4em3rp tuz(lb/tmj*e 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 3.0-V t(te*asy,+ xz battery. What is the voltage across the 1.0-mF capacito*ya,+zsex ( ttr?

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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 vmnm :b otg3zzbyejb,8uk5xw5j 0 qp8 8cs4 -)3.0-V battery. What is the voltage acrob5pwz0mbs x:n q5 - tcm 8,ovjeg)ky8jb8z4u3ss 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 parallkpxxiqc:)4* tyl0 / 1k j)sjjmd8nv-vel across a 24-V battery. How much energy is stored in this combination when the capacitors are fully ct sjk1 /8 :j-pxv*0ldjkq) inm)4cyx vharged?

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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 connectedz;4nfr;k2tjtn p)x/0yelj c : in parallel, and this pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitance of this arrangement?nn)fj lxy4 cp 2t:ktr;0/je ;z

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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 arek8whhpv 5q7/n4 f*cs j connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitorc/qj 547hn hv wsk8fp*. 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 parallel. The combinh:rlrdjdnrj/w)) gu/kr0q9 0ation is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. W rwj0 drj/k ldn)urg:09/)qrhhat 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 connectp t-qn4jm), deed 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 6e ,j4d m)-npqt.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 charsmpr-5(-uehs kawy +rb4 8l 1sged 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 s 17lc lci1nx(b74ll uV 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 l2/jz1suewg8 s( wb9bcapacitor. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the change in v(8w gwu2s l /z9ej1bbsoltage 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 a*js)rk q+tarhbp7 h92cwk, b-l1x) v series with a 3.0blrwtqpb a r j9k27hc1)vh),a+xs- k* $M\Omega$ 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 8 zs1loye(.jpryvlu(,( c;ht100 $\Omega$ 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 w mpr.nim:xcsyy dc /20hi,7dtb );b vlld, e-(ith 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 internal resistance of 100k+ 6m1xbbm.lfd2v x9p $\Omega$ 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; sk)3uezi-lg 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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