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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 betwe,sfti j1p )z-jen the terminals of a battery, when no current flows to an external circuit, is referred to asp),tizs1 -j fj the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential differehoieb .)(pzj gy43 ey.nce between the terminals of a battery, when current flows to an externaje ieb yz.y4o h.()3gpl 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 ink te31wu+pn 2i 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 series6ef 8xf w9qd.fjr/sr ),

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors a *u.w-tsj0p vn5r6p eere connected in series to a battery. If the current of 12 A flows prnpe.*j5s6 w vu-0te 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. W;wn3m:dbni3hd sqy0;*dxxo6 hat is the voltageodmhxb:i; x*s6q3yd3 0nn ;dw across any one of the resistors?

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

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in series to a constant voltage sour3h4-kd1 jtlpbx6+a wb ce, the power sup 3j apl6 xbh+-dtbkw14plied by 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 connemdrni8 (e61hprp2y3jbxd+u r *gdq 9ulrv 35-cted 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 ps:,ujz*e i( rs b/d9rin parallel, we can be certain that

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in parallel to a 12-V battery. Whafyfp /u5 6ev; owy(,udt is the voltage of any one of the resisd6 p ,wyf;oeu (fuy/5vtors?

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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 parallelb+fp(f ./tri tq(. xhpo/krl( to a battery. If the current of 12 A flows fromht . .(q k(x//ip br(fpflor+t 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 connecte+ vot-ne8nvpyai+,4dlweg)z -tw*6q d in parallel. What happens if one lamp burns out? (Assua4,tp8wlv - in q)+g-w e6vye *don+tzme 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 voy.z qmy+9+i ygltage source, the power sym yq+ g.iyz9+upplied by the source

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identical resistors, each of resistance R. The maxim +c(i) 5lp,h ydsd1-l atetf+rum power each can dissipate is P. Two of the resistors are connected in series, and a third is connef)t-ey+iastl5 d,p+l1(d c hrcted 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 r-f d3u*f+if kdule.
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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 rul7irx0g+5w+n v( ohd dxe.
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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's loop rulen80whvi+ya.) j g ua5x 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 a2eh*vmns0oz sr- cw,.n 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 t 8osst8x2hi-o he 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 identica ktkgdf*a6-fn) xgcn5nk -;j:6 b4,ibmo0dy w l storage batteries together in series ("+" to "-" to "+" to "-"), and place them in ,inkg; kbdf6-ot4 j6 k0gfn 5wbc*:aydm xn) -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 identic-juzvd sxwe1 0 a9qpsk lj, d1-so;h+3al storage batteries together in series ("+" to "-" to "-" to "+"), and plaa d1,z9pj0sq dx1huw3s --kjve+ s o;lce them in a circuit, the combination will provide

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteri nt :uxc7x17rbes together in parallel, and place them in a circuit, the combination will probx1 :tux r7c7nvide

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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 seriesg 7nt sa z4r0/wbu2qbx9bzi0n3v* ef- kp+vr3 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 capvy0jhm6*l f7a acitance of the combinationa6yfj7lvm0* h 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 bat/ fj6yondl)w;zv;a1q tery. If a total charge of Q vzdq;nf6 jal/y) ;o w1flows from the battery, how much charge does each capacitor carry?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in parab+e x:n v9)a +syptq7)qpfvg;llel 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 capa8e3wa.4bbli lcitors are connected in parallel, the equivalent capacitance of 8blw3l 4b.e iathe 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 tjz;l2 jzrp sveu4vs8 7/g 1u)lo a battery. If a total charge of Q flows from the battery, how much charge doesl/egzs; zs1u p2 7ruvjv8jl4 ) 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 quantitwwpzcyv-o1z(0w cgoiw s/c4 pij12 6)y 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 connect0qot bibis -u1t 6+q9s5mo 9wled in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the capacit qbwmqs9b5otloti9us 6 i0+1-or 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 qjp:gv ,5iknfzx3j7om;nrc* 8,xl0rto an ideal battery of constant nf l0gn :7i,vxj ,*xorm 3cpzrq8 ;j5kterminal 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 are55)8no- qu yi9giv plh connected in series to an ideal battery of constant term i-v985 hiuy onpgq)5linal voltage. When this system reaches its steady-state, the voltage across the resistor is

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal ammeter shoulhgk hjb,:y0; ccgr+1ejd , mcz4 nz5d+d

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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 convb+-hu+( dxzq terted to an ammeter by the addition of a

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A current reading is obtained by properly placing an ammeter in a co(t/ioa uerqo;4z;-b ircuit consisting of one resistorq (4 ;tb-a eior/;zouo 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 9sv umln(4 7xsjzjm c5l:1 ie: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 voltmeter from a galvan *u 4vdxyx4jr6ometer, 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 resief5y .u1*p.fpk 2eotastance

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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 y t0 1yc iimef(p:u0a(across a resistor. What happens to the total current flo1 i(ui: 0m(y cpya0tefwing 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, ab0x)sg2x qxz7-7+4oyutjoi end 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 valoix0-u 27qxsxgy j4b e7o+ t)zue 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+yeiem0j y.. l series with an ammeter, and 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 dividing the voltmeter reading by the ammeter reading,e.je.i 0ym yl+ 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, -oomju/ (hsq rzxz7433.0, 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, 8. zoqqmu w3p312, 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, au ;j8dx4gg(xlnd 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 i,4vd t x;.sgy/8yz oitnto a series 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 ii y93z taabv88-4 0rhl3qzsicombination 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 4du xqj+m8 btiz9jy(q7vy6,g 1.0 $\Omega$, 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 combinatioks+.d, drh, rjn 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 4pzvogqr7 ) mk (g/ by*t6,gm2kssrc(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 toaso9);+ hmdlkovter, 650-W coffee pot, an9)lkvmoho; d +d 600-W 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 2sxd4uil/5a:/dhh i gcan connect in parallel in a 120-V circuit without tripping sl4 /u:ida /ghx5ihd2a 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 cm/ x2 al0 ;o0jqxj3.ku:iom e$\Omega$ 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 mz :n.z,m8pac $\Omega$ 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 klj/fo *x7a6d, 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 andkz1gvy:k1 ;e k+j3d uy 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. q lxsv ccr 6c.k,g66hx5xrw3 oo*2lwnd 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 5.0 $\Omega$ resistor?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 and 9.0 d s.,vasktm -52x3av 03m xsli$\Omega$ 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 in Fig. 19-2? , xaaf(; p1lnf


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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 gd2 tt cg:w r,t is5hfom636is)ldk 91$R_2$, 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 resdhg8 4ptkd10zistance 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 in the sb 2u 1q6txmycrp,+7m4 qf5lk1 $\Omega$ 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. 197/zlmqpm*c s.vf+ i8rv i 8;zdxb/-fn-4, 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-iy w1hwjtnw*:r7p a,3 4, determine the current 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 poimc vh31g 9b0fj 1+mimxnt 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.p.uo u etzua/2td+us//zk2 a ) 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 pointpgy9fti- usgd xr,-8d6 v ;ui* D relative 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 from the battery in Fig. 19ypxr t9izl 2:1.2rjyc-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 dro 3n s3sbu dp :(xx1 :0;km+d6ksfgqlpbp 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 iu 0fqod0k8ei 3wm2pd/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 curren*f2jp7re58o fim, iye:mnw2-zt v up7t in the 8 $\Omega$ resistor in Fig. 19-6.


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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in the 4 dk8worjt at/6ia; 8p 3plr-3l$\Omega$ 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 tf,9h avu e:;3 ejvv4aqpm+ p c2d:on0ihe 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 ssc3ou:2ctr7 tt 2k/. sljm1othe 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 con*9 l)lpsnfx9f necting the upper left and lower left corne *l9)9lxsfn pfrs?

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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 capacitac2skt 4z p 2f.ecnzl07nce of this combk2 f lpzz04e72 ntsc.cination 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 cgl3(5+.fhxz che a6 gmF capacitors are connected in series across a 12.0-V lehxagg6f+c35c .(h z battery. How much 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 st +0b zk293eejwwa lz4eries across a 12.0-V battery. What is the potentitwej0b a42 + k9elzwz3al difference across the 10.0-mF capacitor?

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacit14l3tlczyot- ex6k/gz o7,1tyr wx(l or are connected in series across a 3.0-V battery. What is the voltage across the 1.0-mF- x ze owt, oy71/ltlcxt4ryg1 zk36(l 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 3.0-V bgh- hch)/r;;t9 0gwj( kblzl wattery. What is the voltage acjzcl-;0 ) r/ ;tbhkhw wgg(hl9ross 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 paraxlb*v)oirm1 z ,*b 6fhllel across a 24-V battery. How much energy is stored in this combination when the capacitors are fully chargivmlfh,b *br1 z6 ox)*ed?

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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 inrxfick*u*jwaf4n; q 6 93rb+t0klj;q parallel, and this pair is then conn6qkxfcf0+3brnu l*itjw;9r 4ak*q ; jected in series 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 com0r0im7/-s) d*wp45 bpyvsn dio2 pngo unk4;j bination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent capacitancnk4j noiv m-4ydppdw*7irs0bs/po5u )g2; 0 ne?

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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 co:i9z) t-ufpcnyv6a i+ mbination is then connected in series with aftv: p-cyi+ui )n z9a6 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 parallwas4:*bdhma 1el. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the voltage acrosawha 41mdb *:ss 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 th*nw,r b.i,gycrough 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 1g(x,lznu ;;x el/xhn 62 V and then discharged through a $4.0 \times 10^{6} \; \Omega$ resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-MW resistor is connected in series with a 0.50-mF capacitc ,e1*tmaug wec6et8y ce:j3.or. The capacitor is initially uncharged. The RC combination is charged by a 9.0-V battery. What is the change in voltac3y c*6 ,.gu :te1me8wetaejcge 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 series wy9;da yzl:tys6/-ta nc(v a-kith a 3.0k/yzv - aa;:yy9 -t(dc slat6n $M\Omega$ 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 resid-2 ,j ib89jkclb,cq ystance 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 cv9hew ,ro/2ldoil with a resistance of 24.0 $\Omega$. A current of 180 mA causes full-scale deflection. If the galvanometer is to be used to construct an ammeter that deflects full scale for
10.0 A, which resistor is required?

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101#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has an internal resistance of 100 e yy (6k.ng6nkzj sg-brh.d(7$\Omega$ 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 o2zvwo a (b23qq lt-c:dnpr9cl3*( jibf 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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