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 c xnlj;:9 w k+zpqnon4k6e61eh onnected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the brightest), the buljk6 zlkw:x6n4q+o;e pnhe1 9nbs 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, L, M, aneu6smv 6h3pdnzbybh0 ,c)2de 2ef/l) d N are connected in the electrical circuit showcpb6s v 2uhz, )h be6eeym3dld )f0/2nn in the accompanying diagram. Rank the current through the 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, aix/*w*,2 l byjr)ntoj/lq*a w- 2 lfmlnd N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the following statements is trueto*qwlx/,2ijla )-jlr yn /b2* l w*mf?

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 connected in the electritxqga q( kt841cal circuit shown in the accomptag8(xtq 1q 4kanying 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 bulrwejlm3j37ol4 qh,p .bs each, with a resistance of 10 ohms, are connected in a simple electrical c4jl ,ehwrmpo7j. l3q3ircuit with a switch and 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, with aa6 w8bwa0p3 tr resistance of 10 ohms, are connected in a simple electrical circuit with a switch ab63pt w r8awa0nd 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 a)gux 5oldvaiowy;kp-x1 h;/b 1yo 8 m0mmeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket o1ivklx5;/o mxb;uod ay0 ) -8p1hgwythereby permanently breaking the electrical circuit at 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 circuit shown, a shor vnm .3u;5fvofhle 6/yco0i1 bting wire of negligible resistance is added to the circuit between points fvlvn1;6/ 0 bio5m3fhyu.eoc 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, when16n1 hhrqd;yapol:0j a shorting wire (no resistance) connects the phl:njaroh dp011 ;y6q oints labeled A and B, which of the numbered lightbulbs become brighter? Assume that all 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. W7ur ;lf;om-si4 h1kxf hen the switch in the circuit is closed illuminating bulb #4, which othe1s r4 uoxf7l;hik ;fm-r 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 are connected into (td8 hu dub;q39:t edn48teee a circuit as shown. All wires are ideal witddt4 ;9dutnu88ee(e qbt3 :eh h no resistance, and the ideal battery has emf ξ . When the switch S in the 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, the three light bulbs hf0kz)rk yxc,og)1+w4vz edau/pd .- have identical resistance, the battery is ideal, and all wiry) /,zk.4coa1vdf 0rz-ep w dg+u) kxhes 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 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 f ek/hqkls-smg tc p0 gsdc.s;t+(9ia;j8 2sr-our lightbulbs have identical resistance,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 correclh sgq( s/9+.k s e8mi-p;0;tc-ksa2cjg tsdrtly describes what happens to the magnitude of the current at the point labeled P and to the magnitude of the potential difference 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 has 4 identical light bulbs khu9 2wcfb;k/m9pv8b connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across f kcw 2vh;8/ b9bumpk9both 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 diagram, which one fd.efmma5yh* 7m ty+ 1wkq:e4of the bulbs will not light? 5 mhe.a*74m yfq: yfktd+ew1m

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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/a0 g 7 gb4w g,49yvk1hfjliqi, the ammeter reading is initially I. The switch in the circ4i9 bghiw k4v0 1qf/j7a g,gyluit then is closed. Consequently:

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, the *6 .p- ztsyvdd-l)t;fplno9cfour light bulbs have identical resistance, all wires have zero resistance, and the battery is -fdd6).ls ;p 9ozytt-p * vnclassumed to be ideal with emf ξ . When the switch, S, in the circuit is closed, a wire of zero resistance is added 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 resistance. The5tvh qh44qp j7 battery and wire t7qqhhpv44j5 s 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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