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

1#

94.28: Four identical lightbule ;kci 0t6,gxnbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the brightest), th;t n0xgcke,i 6e 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, and N are connect-q6zjk8 2wq ceed in the electrical circuit shown in the accompanying diagram. Rank the8wejcq- k6 2qz 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 ligodye(fim. :n1v hu ;1whtbulbs K, L, M, and N are connected in the electrical circuit shown ini y v(wdn fe;:uo1m.1h the accompanying 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 lightbulbs K, L, M, and N aeg mlu 3ie(org7r9 3z.re connected in the electrical circuit shown in the accompanying mzoli3(ge r 7ueg.93 rfigure. 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 n)-ou:q asu1ebulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switce- uun o)q1:sah 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 a resistance ofqyddfdy w 9))- 10 ohms, are connected in a simplfydy)- qd9) wde electrical circuit with a switch and 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 ix t2l, ,ph,m nbw 3)jxptfv5g7deal ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the buxf5p,pwlj,x 7gntb t ,hm2)3v lb R4 from its socket thereby 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 shg)g(g47 c4t hcitb1ot orting wire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goe)gt1icogg ht(tc4 74bs 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 resiojmgtkx f+od5 s4fql:;6. j7hstance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assumo fo;dlq+7fs5:k4g6.j m t xhje 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. When the s apjcko,ocmte(;667k (4s uq awitch in t ,t;aa (4esmpq 6o7u6cjkco(k he circuit is closed 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 bul6:. vjagih7-n hkm8qk1 *-ulecww 0ccbs are connected into a circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf08 clhw 6jk1neu-g:w ac-ivk *ch.q7m 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 have identical resistance,ar4n.rh h1r 0c 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 complen1hr 4car.0 rhtely 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 four lightbulbsh ( .hppylt 3hdi0ew5rn00u c+ 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 correctly describes what happens to the m.(uhe rth5 dl3wp p0nhy0c0 i+agnitude 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 hbiq 2gq/j wwbmm6 -;h7as 4 identical light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit thm ;gq bm/hbjq2w6iw 7-ere, 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 follow0px2ueaprh* 2ing circuit diagram, which one of the bulbs will not light? p2hx rapu*0 2e

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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 switch i d.5 ;pohjo ,tj oy /xy7.g*2zrm.gnqrn the .rh j2gdqz,n5omg*. r yxpo7to.y; j/ circuit 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 sh 4 asaa1nk1gw-own, 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 added intga1-sa4a1n wko 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 shownzmx4 ew*k: 4ia, all three lightbulbs have the same resistance. The battery and wires have no resiska4 im*:wxze4tance. 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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