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, iyn t :v8mc snr+0a* +jd9+crjM, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with tdica8ntrn0 s m+jj+y v9:r*c+he 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, L, M,bxm/)dbhj cvogr4v 78qe:bt 9 pm00i, and N are connected in the electrical circuit shown in the accompanying diagram. Rank the current through th,vxmvbqpo47 eb8h0gb r t)m9:0 i/j cde 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 arh1)eu neoj,p ly1 .u4k-jed)x e connected in the electrical circuit shown in the accom-heju ))kox4endyl1p. , eu1jpanying figure. Bulb M burns out. Which of the 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 lightbulbsb:greceorz76x)7icvsj8 ewiqt 0u8r7) ab ( ) K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which o( z:c)ri c uoit0 r7rgsex8a68))b7b7wej vqef 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, with a resistance of 10 ohms, are conn 3m (2h)kz tts3okmz6vected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagram belowm6 zo3tzvh)23smk(tk .
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, withlrth h)-92ik di 0phn6 a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt batterynd -tlhr p6h2ki0h 9i) 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 aniiu;t0rq h kit(s/ *(3 oenf7dd four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking the electrical circuit at that point. Which statement is true of the circuit aftet(*kr0ni ;ui q7e d(of/ti h3sr 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 shorting k;-u2nvqrsky ( k-it 0wire of negligible resistance is added to the circuit between points A and B. When this short0 i-;tn(qky 2k-kvs ruing 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, whencf.b/mf(wt ew(5to;g a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identicc w5mft(ebg/w ot;f .(al 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 ident4 f1nbdnyc y+,,v 9ybiical. When the switch in the circuit is closed illuminating bulb #4, which oth+vyyncbdfb9, y i4n1 ,er 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 hpu+3; oxixci i uf* 2i.jw7p j6km23jconnected into a circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the swo72x3;hjpc jifw jx p.i u mi+2*k6ui3itch 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, thec8gd(f zxv:+xt +r ry6;kn.,fpr k;pv 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 is closed?,d:gvzvcr68;p xnftyr. rpf x;kk++(

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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 ident8dbfdlq2-lbg p :o)v/y16rq9nvuh .x ical 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 correctly describes what happens to the magnitude of the current at the point labeled dqy 8 l/ dpofg 96b v:nvhr2qx-)lbu.1P 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 cfi3m,d/-g w6ronx d8l 2fa.tsonnected to an ideal battery. If bulb #2 were removed leaving an open circuit there, ntm,dg fwil. o s26arx8d 3-/fwhat 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 diagram, which one of the buanyx7,sc9 q,j lbs will not light? xj,, y97cqnsa

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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 iwbnodskp;c69 5+uafr03 b9b q nitially I. The switch in the circuit then is closed. Consbrcs50na wqu;f9o9pkb6 + 3bdequently:

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 four ligdo ,q-2 f1-df9ve7)t ongwl aaht 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 added into the circuit. Which of the light bulbs will be dimmer after the switch is closft9w ,l-d oeagdnqa1f-vo7 )2ed?

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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 the91 o;tai 2us;jemw sh: same resistance. The battery and wires ot29wa:jh; is 1eus;m 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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