Electricity and Circuits: Complex Circuits - 无忧得胜-网上国际课程 (5edu.win)

?作业考试练习?美国物理杯赛(Physics Bowl)?Electricity and Circuits: Complex Circuits

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习题练习：Electricity and Circuits: Complex Circuits

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答题人: 游客未登录开始时间: 24年08月22日 11:37 切换到: 整卷模式

1#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

94.28: Four identical lightbulbs K, L, M, and N are connecteq8u 4e lx b/ 1fomc+x*us9hb4rd in the electrical circuit shown in the accompanying figure. In order of decreasing brigrlhfm8ex scub 9 u*ob/q +144xhtness (starting with the brightest), the bulbs are:

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

98.27: Four identical lightbulbs K, Lubx(:mlu83z 2z56ed nt,viym, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank the current through the mybid,n6eu:l5vzzt (2m3x u8 bulbs.

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

96.37: Four identical lightbulbs K, L, M, and N are connected in the electrik7obg8,z3wq zw avu01cal circuit shown in the accompanying figure. Bulb M burns out. Which of thw k0z,a1u z3vo wgbq87e following statements is true?

A. All the lightbulbs go out.

B. Only bulb M goes out.

C. Bulb N goes out but at least one other bulb remains lit.

D. The brightness of bulb N remains the same.

E. Bulb N becomes dimmer but does not go out.

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

95.32: Four identical lightbulbs K, L, M, and N are connectogvhu1 t 5;eyr-k2eu,v qn;o4ed in the electrical circuit4n,t2vokv;q eero h ;y5u g-1u shown in the accompanying figure. Bulb K burns out. Which of the following statements is true?

A. All the lightbulbs go out.

B. Only bulb N goes out.

C. Bulb N becomes brighter.

D. The brightness of bulb N remains the same.

E. Bulb N becomes dimmer but does not go out.

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.21: Five identical light bulbs each, h0)1 bmfn hydbhkxc44zs81 .dwith a resistance of 10 ohms, are connected in a simple electrical circuit with a switch af k40zm )chs xyhdbb4h.d n811nd a 10 volt battery as shown in the diagram below.
The steady current in the above circuit would be closest to which of the following values?

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.22: Five identical light bulbs each, witd;ca .w0t9qji j+bufzzz 8j;4a,8lk mh a resistance of 10 ohms, are connected in a simple electrical circuit with a switch aj 89dqk.icjjz;bzf, aa tulw8;4+0 mz nd a 10 volt battery as shown in the diagram below.
Which bulb (or bulbs) could burnout without causing other bulbs in the circuit to also go out?

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

04.39: The circuit shown has an ideal ammeter with zero resistance and 3awy.czcw9 f -dk*0 1x64thldxn .ajc four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking the electrical circuit axaw 41 d6-ccy*zc.h lx0jtd9 k fan3.wt that point. Which statement is true of the circuit after removing the bulb?

A. The voltage from B → C increases.

B. The power supplied by the battery increases

C. The voltage across R1 increases.

D. The ammeter reading is unchanged.

E. The bulb R2 maintains the same brightness.

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

05.37: For the circusw fw)bk k ;nv84np5c.it shown, a shorting wire of negligible resistance is added to the circuit between points 5vsww84.c)nf p;kn bk A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all identical) in the circuit brighten?

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

09.26: For the circuit shown, when a shorting wire (no resistance) connects tho5qwpe,xcs28 e points labeled A and B, which of the numbered lightbulbs become brighter? Assume that ocx5sp8 2w, qeall four bulbs are identical and have resistance R.

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

03.35: A circuit is connected as shown. All lightbulbs are identical. When2tufkr99xq+jq*u w y2:,xw pv the switch in the circuit is closed yp,w99 2r*wu kx+ftquv2j:x q illuminating bulb #4, which other bulb(s) also become brighter?

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

13.38: Five identical light bulbs :yw kfeaj: l c6e8gn,) are connected into a circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S in 8awynkg:cf ),: 6jle ethe circuit is closed, aside from bulb #5, which of the other bulbs brighten?

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.10: For the circuit shown, th b.4.tmxsys,w4ljmwb( c ac0w5 zgf1/e three light bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light bulbs that either become dimmer or go out completely when the switch, S, in the circuit/b .b1(gxj4m5clst4fc.w w, wm0syaz is closed?

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.39: For the circuit shown, the four lightbulbs have identical resi0ahmsdymh p s6 p91.,istance,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, which one of the following choices correctly describes what happens to the magnitude of the current at the point labeled P and to the magnitude of the potential diff01,phy.6ai ssdm h9 pmerence from Wto X?

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

16.31: The circuit shown hasa0dga b,)w2nk 4 identical light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit thera0bk wn a,d2)ge, what happens to the voltage across both bulb #1 and from Q to X?

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

07.30: In the following circuit jck, p boslg 2y 0zqa0;ek03)cdiagram, which one of the bulbs will not light? cs ao3 y2b jk,00e)pclz0k;gq

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16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

07.33: For the circuit shown, the ammeter reading is initially I. The sw lc7xnxw*2pl :eer: j/b p*tt1itch in the circuit then is closed. Co 7 l:lxetp*j2x:ptn*cb er1/w nsequently:

A. The ammeter reading decreases.

B. The potential difference between E and F increases.

C. The potential difference between E and F stays the same.

D. Bulb #3 lights up more brightly.

E. The power supplied by the battery decreases.

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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

11.38: For the circuit shown,lx ngs .ua/h 5 u8rn5rryd(oa-w31oi 0 the four light bulbs have identical resistance, all wires have zero resistance, and the battery is assumed to be ideal with emf ξ . When the switch, S, in the circuit is closed, a wire of zero resistance is ar1/a .3 ro5 uurnx85ligw-syo0 a(nd hdded into the circuit. Which of the light bulbs will be dimmer after the switch is closed?

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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.22: For the circuit shown, all three lightbulbs have the same resisfg4m*n*mi zn)o5h 5cw tance. The battery and wizn*iowmcf 5 n gm)*54hres have no resistance. What is the proper ranking of the bulbs’ brightness?

A. $Bulb 1 = Bulb 2 = Bulb 3$

B. $Bulb 3 < Bulb 2 = Bulb 1$

C. $Bulb 2 < Bulb 1 < Bulb 3$

D. $Bulb 1 = Bulb 2 < Bulb 3$

E. $Bulb 1 = Bulb 3 < Bulb 2$

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