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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 the terminals of a battery, when nmxy7p.uat1 5 7j m(qhdo current flows to an external circuit, is referred to 1t.7mxpu qay7m( hdj5as 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 termp fv7+uy ,i9ih1ej +xai7m ;wwn*9 vcsinals of a battery, when current flows to an external circuit, is v+sw,c v hp7;i w+9jiiyxf*9e mna7u1referred 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 batt2tm*0 lazkzkc ph 822pery

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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 serics 2)r3msj5gjxw(v /4o hj;hw es,

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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 batter3s q x.;;mesgbha)z. ry. If the current of 12 A flows from the battery, how much current flows aer.3 b;ms)q.x hzsg ;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 seu5 h5 f/sh arevfx1g2s+ao/e+ries to a 12-V battery. What is the voltage across any one of the resisto/uh x5 a1fe +5frose+/ vah2gsrs?

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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 voltag35yg9epu r+pe e source, the power supplied bug yep3+5 epr9y 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 u l8kxb- eehpmj91::n 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 certain t l 8e3(:m 6ber(p1nhjrc mma6ihat

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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 rh w 7jtf e5n4rr r,:2*fan;nk12-V battery. What is the voltage of any one of the resist,rf5wfkrj a7:;24 t rhe*r nnnors?

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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 j 84l8abgw8ukxiwulv2:5l9 g. If the current of 12 A flows from the battery, how much cur4vg5uw 8lxg9 ll ik8:w2j8uabrent 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 lightsh)mog,,yvz k1 are connected in parallel. What happens if one lamp burns out? (Assume negligible resistance in the wirem,v)oyg1hzk , s 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 sourcee7kfvkv3)y (gs1)uz o, the power supplied byky()oevks3zvfg7 )u 1 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 resistorsde l;uuvm9hbi3j:) j qa 5lk)x: f0n,a, each of resistance R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected im li3:j)0db:a ,u q5u)9l;n kejvhafxn 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 junctionc qyam1 lc576 jwy+q2e45f yay 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 lo4q 1g7n xe.omaop 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 rulepgm(an ib7i86l4os9-czr ht ) 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 an exibo8e--)e m lsm- -9c jfhr5szample 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 shc7s *0j;yd-oxowu2n oq2w u8yown?


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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 seri3dqxijj6ndl+8w+5l cpn/9ybv q1 ,k26jbuxt es ("+" to "-" to "+" to "-"), and place td5 36j2xq/p,n1 lku+ 9bij wbx ndtljqv+c8y 6hem 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 ("t7tk4i(ll+c fw/fn5qsbdu8*s5 vmz )+" to "-" to "-" to "+"), and place them in a circuit, the combination will fcsvm8 54t+fs7/w*kzlu( db)t lniq5 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 identicv0 rgh5c:05 ch7 s+f7xess vkeal storage batteries together in parallel, and place them in a circuit, the combinatioeksh0s+7c xver7fgc5 h:5sv0n 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 .b(;+wxw+, f nptrhut are connected in series to a battery,

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are conzf5c 13kp ino;-vgkis6mvl5: nected in series, the equivalent capacitance of the combination inn 5o5vc:zp3flkksv i m6;-i1gcreases.

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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 smmy2i3en ++h (mdcju5 eries to a battery. If a total charge of Q flows from the battery, h+2m+mci3jn (m yhued5ow much charge does each capacitor carry?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in parallel to a batt wgmv+oe7c / ,q:k2yh sv7:gftery,

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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 u:vu o65etyao,)5nnai n oc3)parallel, the equivalent capacitance of the combination increaseeutan56oonc v ,:))o5iyua3ns.

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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 par)m. z0kmt6 q*1-rik1r wg ofbu*zo 1lhallel to a battery. If a total charge of Q flows fw0r lb.gmrtm1qf o16uz -1)hz*ikko* rom 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 for the quantity RC?cee415 0(hdakpwjf8 p4hn d (m

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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 consrhr yj77tcjkc..( unm).t)peq2 ms. btant terminal voltage. At the sr(nkh 2ujcrj.mcb.ptyq7..) e7 t )mmoment 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 capac2ayemodt . 53aitor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage acr t2ym.oe5d 3aaoss 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 conne :yd lj; yj,-j.i2ezpfn e3.up ,5mirtcted in series to an ideal battery of constant terminal voltage. When this system repp.jen3,ju d im5z -fj:y.ylt 2,;e riaches 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 sho*aosn a7aue37 y )a*fould

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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 by0y6ijc ie/ls yt(a9hi/7m7nh 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 by properly placing an ammeter in gz*ga) )7nw ow4(jl vxa circuit consistinggwon(g))l wz va4x*7j 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 resistance of an ammeter's shunt resiskmv:q;s-t-clkw 2 7n6 ei 8bsstance

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to construct a voltmeter from a galvanometer, one normally j;f3*u(ecmr /odi2m w would

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the resistance of a voltm 9 3kwjcdfj);xeter'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 wtrszk)24r9ih(n4 vwplacing a voltmeter across a resistor. What happens to thzn9)rt4 s r4i2vhwk (we 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, and aw0 z.zknk*aoha d984k 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 rea*kzo wkdk n.90ha a4z8ding, 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 wlcnpdna diwl3bpx f1eev n 0oj6 q8 //(9z.,+eith an ammeter, and a voltmeter is placed in parallel across the resw d1j9bz l e6i38oaen0p/v nc.q+en( d/lf,p xistor only. 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, 5.0, and 4.0lp(0ui a. nfz4 $\Omega$ 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, and 6.0 u7 jz s n5m-af+e :3bt9wreaz/$\Omega$ 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, an8yskd 5ia xmy+jot)1;aobx 71d 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 qik xu/(d+8x0xbtcy6series 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 combinati)r kl-o /(4)sjhnw6zx+lz 0 eburfi2v on 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/0z6frvu)qz a combination of 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 12 $\Omega$ resistor?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combination of a 4.0 j.lkd9d2; 1 fcjp .m.esdkg(m$\Omega$, 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 hlu tme61,dd8a 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 connecte823g jd 1aespds zxl+4d to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated da ep+s1gz382sdx lj4 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 i60 lm-rr qpgb0 d8.q ,xuqat3cn parallel in a 126 crmgx.0q-38d ,tr0q quplba 0-V circuit 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/ngh6, nbfyfz) frg 8) $\Omega$ 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 30*j)y 4gib(/b e 1aghoe $\Omega$ 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.rbh o)hs,(dpr5. m4pl 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 t5: +co3ktd)s teolg.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 ae vxhu p4ed.vq 9;3hw(-waq e1nd 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 5.05.bml+ ndgub3; az,0i np ix-u and 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 9.0 $\Omega$ resistor?

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

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total resistance of the circuit tb)/tj(pa; pw5 w:soo hk9ej6in 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 e2 v+wxo+vr4pxd9lb-2n2 qvtsq-pr: $R_2$, 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 o;w*whqv7ff q+ f 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 i+2bbgll) h+p x)-wp jjn 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, n96iy g2e+iftek :8s0ajl)c jbknr/; 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 curr* r0xfy x ,)ht1eol8yyent 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 pop;u1orpw *qc :*z bq*iint 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 point C in Fig. 19,uexr7teu .u ,-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 relativas-fr g/bc (:i+o 4bxue 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 fromjvq hztg (f1xb+72m d3rc xf/) 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 potentiah(2bi+fav v+l9 e(m mtc2, iaql 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 i6qohckp4(t:y yvzu bh 0t3 w/;uiar79 n 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 the2st(tjnc8wi r x b f0p37c4u9i 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 th )0sqz9 a/djft 9nroo4e 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.6kdf4 drevu/ o(.0hiam vh5 e 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 ir-mh;p7rvhi- e9hpx j8cz,k/ n 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 lef13-0 e2z:;kj kcr vvagx:bptrt and lower left cornerk-e1:r0 j 2rc kv3ba;:v ptzgxs?

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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 capacitan+7i7 ahf ;tw. lu6phxlce of this combin7; 7+lf awxp6i.lhhutation 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 across a n .ik+(r,0lrug gw13 qunl y(v12.0-V battery. How much charge is stored in the 5.00-mF qw kiu(3+ln(vl.0uyr n ggr1,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 series ac, ,f vthzb6 6kk uref,6;x9yq; ewf6kjross a 12.0-V battery. What is the potential difference 6, b u,kwvqf6ez6k,ye 6jhtfkr ;9f; xacross 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 cdtwomx lr3n qxkd * ba)3;470kapacitor are connected in series across a 3.0-V battery. Whatql;4wo 7rtx 3 )*kdxak m0b3dn 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 capacitor are connected in series across a 3(i4m- lip9 h:gqbtl u9.0-V battery. What is the voltage across the 2.0h4 iqb9(-lim l ut9:pg-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 area1v hjige8 2;q connected in parallel across a 24-V battery. How much energy is stored in this combination when the capacitors are fully chaja;8qe 2i1 ghvrged?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Capacitances of 10 mF5em5 je 2y,.y.n+sez r)ln zuh and 20 mF are connected in parallel, and this pair is then connected in series,.nyehu .l)5+zj eyr5 mz nse2 with 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 in parallel. The combinatg7a zq 2pib4w3ion is then connected in series z74agbiq w3p2with 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 8.00v, 6ow).s;x eg2emfxczj0b8 u mF are connected in parallel. The combination is then connected 6gw;bs)u j ,eex.c8m 0o z2vxfin series 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 6.00 mF and 8.00 mF are connected in parallel. The combinatio9;g /.z+rv 9q*4j z rdxb 7cptlglnju)n is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage across the 6.00pjxbv crzrz9tu 7j*4l n+. 9 q);gl/gd-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 chargewh ,ox1 yv b9wrx;n4yz76j,vyd 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 then dischzz.y, iv eib.9arged 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 capaci xaj3zmb8 sa); dvg; 9xto+hd0tor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the change in voltage between tv ;x jamsda3 )90zx8h o+bgt;d = $RC$ 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 chargem1)jvc k +pbp ea0 6w+p,-+3nk:v gscjv7w wvnd to 6.0-V. It is then connected in series with a 3.60s: 17+3pw +j)ep- mavk kvp+wcbvgjnc vn,w0 $M\Omega$ 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 resr3vcfe;o5b2 agsc0(e 8-n y bjew6n 2bistance 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 a39q2f eghcb: 1f2abvh 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 intern)4d2 jj *fjgm ,pcg(r6nxe3fdal 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 coil resistance of 406 kzw/nn h07li.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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