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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://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://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 no current fl ddubz un5*2/+ n6lijtows to an external circuit, is referre /njz+bl6tiuud 5 d*2nd 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 difference6j vdp;r( l;w9,h ,v+ hwzlf;ewqd2uf between the terminals of a battery, when current flows to an externa+rpf;h l(jwh ;ze 6wuw,9q,v2d fd;vl l 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 resistojrez93-xt(ejn7*n s rrs are connected in series to a battery

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected in seriesu2co9.7d ,9mdb sx vvf,

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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 j9r ifnhjn ;8n;73gtoconnected in series to a battery. If the current of3 jj8ri9gt 7n;hnon;f 12 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 series to a 12-V battery. What is4l3qv 57fg, glultht07)yl ys the voltage across any one of the resisvu sfgl 5lq,y30tl t)l 74ygh7tors?

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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, th,y dvag4tc.l6e power supplied by th ,6avty4.d lcge 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 8a d-zsaadqn4,g/z4xconnected 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 connecters 7w,xh.nnoi 6+sz b5d 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 connected8nr8 tcfxsu l(uk 9b). in parallel to a 12-V battery. What is 9(f8ckurx.u stnbl8 )the voltage of 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 battehn*d trwz+rq0k;q om. (mqm;0ry. If the current dw.kn m h*mq0 mo;rqz;(trq0+of 12 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 Christma n5 akgqc:j-e)s tree lights are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wires leadiaj qck)g:-5 enng 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 c. yiuev66g+9 gc raw;qonstant voltage source, the power supu 6ir+yg 6.wc;ge9 aqvplied 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, eaip.81g mi: 3zyfd oa0bch of resistance R. The maximum power each can dissipate is P. Two of the resistors are conne3a8mdgi:.if1 zob 0ypcted in series, and a third is connected in parallel with these two. What is the maximum power this network can dissipate?

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16#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's junction rz;zcg21rd13n f cj1 zlule.
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17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's lo(* dklnz,m9 pvqk*w (onl ,zp(op 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 exam2t swgtngd5ig** j13nple 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 ex(z:kh9gb1kk) sv 9f onfao0t; v(vd8pample 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 foysd*nxumw/ j x 8x.:twpyx6 ,6r 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 identigp57lofwa 2c0 . . i4bxhijs.acal storage batteries together in series ("+" to "-" to "+" to "-"), and ploa x sb.w l4i.f7hij52acg0.pace 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 idly0b 5*g d557gzais cmentical storage batteries together in series ("+" to "-" to "-" to "+"), and place them in a circuit, t*m 55c5z7agsyd i 0lgbhe combination will provide

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together in dhe(1eds8lo. parallel, and place them in8d .olh1 ee(sd a circuit, the combination will provide

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are cooho;ri j vq;cg5nn+w4k4xd+4 nnected 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 connect b;0kk rkpwjf7 59lyb2ed in series, the equivalent capacitance yr;lb2k7j095kw pkfb of the combination 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 avkqnbk9e /jpo*( 2z;sx hr::m)+afk w total charge of Q flows from the battery, how much charge does eachh jp);* xe+r/mzkkfoq wa2 :bk(vn:s9 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 connecteda.6c n //f bi wz)s8j*x,x hd,e7cnmqu 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 parnxb s; n3,zbp)ge1r.yallel, the equivalent capacitance,np sn3ergbx .1zy ;b) of the combination increases.

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connected in parallel to a batteryw-q*og;4b* pu-j88f2o uah5qtqk m mm. If a total charge of Q flows from the battery, how much charge does each capacitor carry?fmjpa4;528- w o -uh8mo *bmgu*kqqt q

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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 forwn9:rqy -gyq; 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 capacitor are connected in series to an ideal battery of o0jocqeke91n9ra n:3constant terminal voltage. At the moment contact is made with the battery, the voltage across the capacito9o 0j1knr qa3ec9:neo r 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 byd:9uqs o(m jlpd64 +kattery of constant terminal voltage. At the moment contact is made with the battery, thdm : u4qdyo9(ks6jp +le 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 sh(mx)b1m db50u/g3vfbsux(u+ zhbz 9eries to an ideal battery of constant terminal voltage. When this system reaches its steady-state, the voltage bbux f 3+ub mv(mx0)5 hzhsz9( d/1bugacross 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 should)uk8lxermy 9u/j 2j-3s rjb)q

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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 aoy.ac9:m z,dh ddition 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 cirsbh 2m 0e,d*qrcuit consisting of one resistor *h rb,q0 emd2sand 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 36co)ukpne 1 k7eb4 jkammeter'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 voltmeti 2ct.jyrcjs7* n;4byer 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 resistag- +pn cset0n4;h 3puince

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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 placi esw v+,t6w:sjeg2c+ing a voltmeter across a resistor. What happens to the total current flowing in the circuit as a result ev+sc,j wgwe2 :t6 s+iof 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 ammet/s (o;na:3hip t0a1 aikccn5qer, 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 dividin sa/qakc50;t ph (i13oainc:ng 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 wi- z)k2 gwcyx0lh s5ptb11 j5gzth an ammeter, and a voltmeter is placed in parallel across the resistor oxwy25z0)tgj g 5c1sl zkh- 1pbnly. This network is then connected to a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 20 $\Omega$ resistors are connected in series. What is the equivalent resistance?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four resistors of 12, 3.0, ie6bfyf,jq122hmd8z 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 12, 12-k to 8v:tjq3p4lo6ao, 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, andgg ron5m g6x-t j)z-yf3qs7 ,r 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 seriesbilo ieu k4ko-85sx84/r/ sk, + kzywz 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 co/ fhrw 9 zfgtjj3 hu-,/;xv/jtmbination of a 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 3.0 $\Omega$ resistor?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combination of 4w81seq og)txfskq:567 vcw1knk e 2q3.0 $\Omega$, 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 q mc2qn)h1 )9pbm 0wbla parallel 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 into a parallel coh0(xt 8j6zqru/ izg ;pmbination 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 cig. 7iea4arf4 wrcuit: 1200-W toaster, 650-W coffee pot, and 600- 7.w fi4garae4W 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 number of 100-W light bulbs you can connect in parallel in ag)p8q 5w e * 9feg.hgctv; j1o10(rfzw b;ylna 120-V circuiw1)qtf.a p9goe8r;ewv0 fyb;(lzgc 51 h j*gn t 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 2.0 cnavo*ee 0 y45+tdql($\Omega$ 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 andacwhurx 1zc 1b.*6om0 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 ptrcrj-45ow0lnzs. z2 cc26 w.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 9b0(r. d,:nh guqt(a3a.ji- iierz ,p f.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 xw kr*,e*8 fgar: e(;gjlw/qm$\Omega$ 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 fc(6j *msv/r n9.0 $\Omega$ 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 resista)fohij 31 5ylrle5 on1nce of the 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 throuda ee9hw6 (c,agh $R_2$, 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 resistakv2zrp if9 6/kh/- fyunce 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 cuhlnnqa;em. fn2 sf;ie .- (p.trrent 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-m g*g bnf2r656bjt2th0p2 mhq z y3u5v4, 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, determine the current in the y1f).vrd8cw 9xoyj( d4 $\Omega$ 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 in Fig. 19-5f ) bhvb6z*q4i?


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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 relative8ima/,t oc +r);bdv;7 zqelmg 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 Cwh0-fpg7dgov60c n6v 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 l6u/bf,f/arx d a)8ot. 19-5?


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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential drop from point A tojpfymo/j 697 1oat9ltqggptl+u; i 65 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 7 y+*r jw/uiirthe 7 $\Omega$ 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 833 na0fbh 0yzb jv fwqv2/zs:* $\Omega$ 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 currenxt p oqv4ap 9qzt.6vdb-p,o i9k3-pn*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 ia kuqrj-0-/ysu(kuk7(x. xbz 4bkur)s qc3j+ n the 12 $\Omega$ resistor in Fig. 19-7?


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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the 1e a,* 1wu8-8j a5oc3y wywzyed8 $\Omega$ 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 connc w3p hp.)fj ux80nrt 0t, w3n;k qd:n.mng;umecting the upper left and lower left cofwunk.gcmtnhpm3wu;p:qt . 00,j8; r d)nx3nrners?

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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 equivafk utvrv5hqj)/l;5s7.a5k5u lou p ;wlent capacitance of this combinatiq5f ;/ v5tl oukw.)kjhs5;u r7alvp u5on 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 5g // 0nhyvuz+g0.0 mF capacitors are connected in series across a 12.0-V battery. How much 0/uyhn+/gz gv 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, and 50.0 mF capacitors are connected in serie.*qxo 50/ bem x mbnyem*qwf*2s across a 12.0-V battery. What is the potential difference across the 10.0-mF*20m*bo 5yx* enx. qq fwemb/m 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 034pbcgm b./)lwbf4et c,f 4b8gjkkgseries across a 3.0-V battery. What is the voltage acr 4e4kggb .)bct/b wp8 ,lf3g 4jf0bckmoss 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 capacitor are connected in sefr97 dm4 9kqvrries across a 3.0-V battery. What is the voltage across the 4rf 9r k9v7mqd2.0-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 paral59lcwtku- 6;dc x)ad dlel across a 24-V battery. How much )a;6-cklu 9ddcwxd5t 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 thiiz7 uydr+0b h 4es9n*ph*r5 cis pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitance4d0 +7u *5 9senrcb iyh*izrph 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 conney 89nbih 6af9wc0-hb octed in parallel. The combination is then connected in series with a 12.0-V bat-nh8bc9ayw0 iob6f9 htery 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 parallel.zsrq,8h2j n*f The combination is then connected in series with a 12.0-V battery and a 14.0-mF h*zf jqns8 ,2rcapacitor. 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 in parallel. The tdbh y 27n+0io+lefspqnh- d x ;b.c)4combinationobpt7 ny 2cish; fl dh+x40q+- db.n)e 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 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 chargey)h7qq7eym 9 sd 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 tqp,6 lq-pt/:o0 l bvnrznhr f5z;x7fpu(*8yzhen 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 srxl 5,vy8 p: e:2q fe,v/mrfuberies with a 0.50-mF capacitor. The capacitor is initially uncharged m,x:qeu/ef8b25vprvy fr: ,l. The RC combination is 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 9pnx5uj t:k pgx8-4 cgis then connected in series with a 3.xjpcgk :4-xtg8p5 n9u0 $M\Omega$ 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 intern6cf k0hsua7 6v 0n0ipbk b*c5val 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 resistanc+7;4jgbay1af izxg834 z xnone 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 internalu:m.kdiqec* 4 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 k 6* vygc-5kokn. x8-obv 4vsyaye9q9a coil 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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  • 姓名:游客(未登录)
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    总分:102分 及格:61.2分 时间:不限时
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