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习题练习：Physics Unit19: DC Circuits
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 作者: admin  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 5)0g 0,bu; *tzvugf-eo3yfofkbs) l s the terminals of a battery, when no current flowz)tgv ubfosb,3y- sgloef; 0kf) u 5*0s to an external circuit, 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 termbvv7)zkfqh -6 8t63yws y :xauinals of a battery, when current flows to an s6 q kzxv:ufwy 87-3bha t)y6vexternal 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 tsfj 4 i4p9dm 9lp7jbf:+t u6: na2qsjdo 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 serr*r0)ic .q; )sbhanapvkyza. 7i)o0lies,

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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 batk3ozcrwnnd1s5u 04k2tery. If the current of 12 A flows from the battery, how much 4wndn 10korz3k 2sc5ucurrent 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 ba9 svpt tcm.29sttery. What is the voltage across any one of the resistorvmtspc9 ts.9 2s?

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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 constan3 xzi1ct/ ik 1xzne:xknn:l+/ t voltage source, the power supplied bynxxczk:xke:1ni+il1 t // z 3n 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 )9kq sf t( yn/z+p.0fwu2p rwjconnected 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 cerfu 75fqil6c.ctain 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 - rh*b9t4norrejnv3d t u./2da 12-V battery. What is the voltage of any one of tt9on tnvrr / .*4dj-r32ehubdhe 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 battery. rbz xe*(1jka/If the current of 12 A flows from tj(ak1*ezrb x/ he 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 Christmasl zy)2kv;, )h nx;k2j qs bzn-1s0wblv tree lights are connected in parallel. What happens if oneyl;bs; wxzbs) 0, 1vk2vn)n2 qjl k-zh lamp 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 to a constant voltage source, tgsupx037j ulzd3;)nche power suppl u70pczls3n)xgj u; d3ied 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 resistez:stu +e3+: eel hnon ncp67 p49+itc 2bx(voance R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected co e2s6e: 3hnztx+ov+nt7ecn(pl9+4p:ieub 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 rulexb j uqd70)8rytnhrv: np /x;*.
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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 rvn 5rsclhz b+q)r7nfn82r97r ule.
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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 j3kx/i9/setj;+ocahop. ; o q is an example 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 ano(0arn *2lp ( emra m:*;tt3 v6bms7cs+pbkgm example of

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the equations here is valid for the circuit shoy)qslzz u 182kjelxn*;q 46zpwn?


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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 serieskhp3kxuy,3 ;dj0q :n z ("+" to "-" to "+" to "-"), and place the x :,nkhdpyj0uq3z; 3km 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 storage batteries together in series (ye4v xi8r1zc2s y :u7p"+" to "-" to "-" to "+"), and place them in a circuit, z1ye8sy27 4vx uripc :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 identic lg1nw7qppbdt m2 77u4xvo8 ahhr85:cal storage batteries together in parallel, and place them in a circuit, the p8 h a47p77tmolb:hqcwd5gun1vx r82combination 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 a3 +s ve5 cvz9o6rd09hijrmeg9 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 capua;gi:+ icv bz3t5ka8+ pihc 6acitance of the coma+k;vac:i 8 c+6hz3i5p tgi bubination 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 8o9uem4 tqi;: 0aaqppto a battery. If a total charge of Q flows from the battery, how much charge does eoq :4p 9ma8a0 tuqpie;ach 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 batt m4dgyp -vjv i:g-s02l7h:res ery,

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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 equivac+g9;khkd aixf-b 8)1sflvm n -d 9r;xlent capacitance of the c-;d) i;k lfadkvhg9n-98cs +rm1xf b xombination 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 connectv+ qe8; tw.3md wl cc(pugd .vej,4-ui.ky 0xqed in parallel to a battery. If a total charge of Q flows from the battvc 3ul .icw ed4(v.y0q qt .k;8updj,mwxeg+-ery, how much charge does each capacitor carry?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the unit for the quantity R47 dfaal1h; .*)5v/f w rsytd.v hgohiC?

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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 zikj i.f) b/z/consta)z/ifj b/.ik znt terminal voltage. At the moment contact is made with the battery, 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 conn u;iw *-s bj+couqju14ected in series to an ideal battery of constant terminal voltage. At the moment contact is made wit -b+us uj iquw;co1*4jh 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 bl8q -(ese8;8igca c yu89e clbattery of constant terminal voltage. When this system reaches its steady-state, the voltag8 i elq8(y8ccesgu9c;ea-8lb e 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 should(rfz,h)a,0 ddy+,um iuw: bmn

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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 ammeterh( w8v*eexs/uilm s3( 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 obta yb h7h8yc 728cg-yzveined by properly placing an ammeter in a circuit consisting b2h y8evc8-y hg7cy7z of one resistor 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 resistanc uh1yasfe 8,lj9)5hoqe 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 a0+r owmbg o63r xcnj/, 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 resistan+ca0mo dr ir (nl4dxnrm,.(m)ce of a 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 across a-qv : loq(rnrq.e ;t 1t)qlwb/ resistor. What happens to the t-nrlqq: l v;./oeq tq(r 1)btwotal 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 w-c u9)p6ktrq1-ni; 7pln ry vkith an ammeter, and a voltmeter is placed in parallel across both the resistor and the ammeter. This network is then placed across a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtai k-l-1 ;p7v irryp6 tucnq9)knned

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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, and a voltmeter is +f9()reykd +5omys hwplaced in parallel across the resistor only. This network is then connecte5f syy+)dwo 9r+khem (d 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 12g cn;c2+4ugih+yy q c8, 3.0, 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, lbxd)g :r,2m s12, 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, andhnra5(w 5wrw710;ma s4a joq* :4ltfg zih:db 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 combinatixrqkic7 lk z3yvl6 0:*on 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 ifc.pb 9dxe9l* nto 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 combination of 4.0oh4m2yvsf)bk8 xo(cpygl*1 , n.)j ru $\Omega$, 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 gx9noy4f 0vm :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 combination of a bz2t-b+mr 0a uvnil( ;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 circuitd),q(*.*rxk b73 mz ok inc- tcbzf:fv: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current) iot,7zfmr c*b d-x .vn:ck(*z kqf3b 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 connej/u1 /c8g ,e,0powru9u ybbeoct in parallel in a 120-V circuit without tripping a 20-A circuit br u1o uw,,p 0obe/ugc9b8jer y/eaker?

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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 bq.tq34:d2o uyt fottgp (dv-ay54a8 $\Omega$ 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 v q4e0wcpws hb:((y *gn0n-acd-(syn30 $\Omega$ 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, andx( d7zw-6a cow :lx5ninwyf: - 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 j a0w3yg7 ctj1x. zxk21:hiil 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 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 a l;ssjx d.55yl+f/zh s,wy v:jnd 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 anuoruv8z5y nx7nl8 qp3c.hi/h yb6)+sd 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 csz. k: bdxfa6xu2a q4,6.exbq ircuit 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 through - pcuwc hjakq2fdw96ysjwr6b1.*-m jb y 6w 9;$R_2$, what is $E$ in Fig. 19-2?


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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total resistance of the circuit in Fig. 19-+c),ujdud yo )/0xcddrum q5: 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 cp6fbv-q a a3cq /gddoq17,m-yurrent 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, deo/:d xx*9xjgx3sk6w l termine 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 currenwo- we;da ,v mfz5)f/jt 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 of point A relative to point5of ou1ul7 v.fz b02ofvks;z3 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 pointx j3ym3 kbyt9/ ;gn-ax B relative to point C in Fig. 19-5?


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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point D relative to point Ct9yrcfk8*/ri gon)0wt(5 * :hokbu i i 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 bjzp .u8tx-u(gwkj 9 )7 pfaxr9attery 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 point A to point B in Fi* 5fjhuoogl w1vya28 .g. 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 currenthm )2 a0w/wuyfqqv .a+21j;zff4 qf jb in the 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 :h/i ed(awzr, 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 x, +,;v;obyhqep4t4z 4fzgc5a4uaxgim z9s2in 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 the 12 n4db paf)j53up 32sde $\Omega$ 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 1zbk f4sj0mf)i(8 p0lv8 $\Omega$ 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 conn5*d8vg8cwpzt8y,ad 0vb b p 6becting the upper left and lower left cornerb b8g pc,8*vdbvt dz5p80 ywa6s?

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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 cb3hlq 9 426uuimn 53vtcuh:ry apacitance of this combinationlrucu2 :i354tqy9 h 6 umhvnb3 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)2z3 cie; ekjbmbn sf;el; l(alxx:;( connected in series across a 12.0-V battery. How much charge is 2ebc)kif(ebns;( ;m ll3xea;z:;lxjstored 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 connectksonqje9 uk/xb z-2 j+g;,r7hed in series across a 12.0-V battery. What is the potential difference acrosshez;r-j7uokk +2b, s 9xqjgn/ 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. eha6n3xzjfv q07 m01y0-V battery. What is the voltage across the 1. y3v6qfe100 hxznj7ma 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 co0 wilnzr y;(4knnected in series across a 3.0-V battery. What is the voltage acrossz;yi(kwn0r 4l 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 parallel across a 24)ykru nfoj wn(x m3 6a-*qu8-w-V battery. How much energy is stored in this combiyux6o-8*)3-qaj wrnfk(mwun nation 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 pair is e,m.48r0cnd o2cb o yonxdr1* then connected in series wit*co.yd08c n2,o4o rern mbx d1h a 30-mF capacitor. What is the equivalent capacitance 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 iojgtolvw4byw2 2rt8 l4h6i,oo 6kt 8/n parallel. The combination is then connect4/o wwhjoo b86ttg26v4l,ly ri28ko ted in series 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 8.0;0*vctydbn t :v8ar0to 8nys6 0 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitoyv;tbay0sr0 8:n6v dotc 8*ntr. 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 combinjrd 1e5jrq05uz.whz1h+i4e cation is then connected in series with r e5 eqjh +i51wczj.1h0d ur4za 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 charged throxks m j:pg**i/mc6xtmqw9n( ) ugh a 50 $k\Omega$ resistor. How long does it take for the capacitor to reach 90% of full charge?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged to 12 V and then discharged m yi-7q:dexqu*,klo,8zv e+v 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 serqi b 49 uf hsic+ -ohtb4ru7t .u9ctx,0njj19mies with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combination is chargef o9u+ ,ntj b t9 47msch1ch94qi-it.ubrjx0ud 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 cogod:420b ie puady/c *;cwaf6./ upjhnnected in series with a 3. iew6ha04d 2:ud.cg papf* ;//joucyb0 $M\Omega$ 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 qv a2a+ze2pba b-9, bt)cp6ar 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 bemzutxi87y9. 16 hah 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 e2-emui))ze q 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 coil resistance of y-c e3rolk rb +eyy i6sorp ;-d5w35tx*ja0s8 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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