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

1#

94.28: Four identical lightbulbs K, L, M, and N are connected in th)l ,nipf;w0bi e electrical circuit shown in the accompanb ,wf0; ipn)ilying figure. In order of decreasing brightness (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, L, M, and N are connectedg3a0 qzsl)u5mvq t8mg i6/ wh-rw -pq3np7g0q in the electrical circuit shown in the accompanying diaqnwq 5mp-vg0thz l) apu-q3g3s7i/ g 6m80rqwgram. 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 ltj8sb xf oig4/7ev-2vightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the fv472-iefb8xovt/g jsollowing 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 lightbulbid3ki 0 ,lb lba,0/d/mlkmxv5s K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which oli l/kl ,v5mxi0ab0dk /,3dbm f 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 resisb.x;zwq b45de*ku 0gg, cq7vg tance of 10 ohms, are connected in a simple electrical circuit with a switcb5gx,wbgc u;*0.zked4 gq 7vqh 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 b )p.19m bflnq(f4 w.nifepdw, ulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt bat ( ewfn.i p.9fmbwn1)dfl4,qp tery 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 id-vv:xl*b 1w jo hke+d7eal ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A pdvvb-:k 1x7j*+loh ewerson removes the bulb 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 wj3c m3wemxooi7t+ 5. shown, a shorting wire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bu3c iwoox mwj37.tm5e+lb #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,h8bwv+ 2g6 clq when 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 iden+6cqg l2hw vb8tical 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 shownrl8+2as,*bsaw:nk rr,ornwj( j,)qk . All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bul:,wr) rnsk+ a jkws,ora *n2j8rb q(l,b(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 pa zsbj)j4ao8w; i b:av8z2v1gdq7 +a a circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S in the circuit is closed, aside from bulb #5, which a2oas1a v8)b7pv+wj ;z4i8q zgabjd: 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 lumgj1xwt6uk(/ash-a*8o a8t * qg r+ eight 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 cma k q8h-w6(uag8o/*jasetru*x+1 g tompletely 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 lightbulb.srer l-bpv,*2gph6gg+z4 ii s have identical resistance,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, which one ofgig4bgv l2*pp-er6.i ,hz rs+ 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 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 li6t o yjdn4z-5ight bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulboz6d5tjin4 y - #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 diagra+xyb ,vr :uzy)glgn4/ m, which one of the bulbs will not light? /ubg, n:y4x)y+ gvrl z

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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 ic cs-cm dt 5/ 3h2hc9my6pq0byn the circuit then is closed. Consequently 26tcccb0y-qphs 3m9ch/m 5yd:

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 light bulbs have identical resiv*jl b.61la2 rf w1nauu7xkh* stance, 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 zeron*uvhurk71x2 jwlb.f6*1a a l 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. Thev0wfafm)n2a 08kqcz -3js *ja battery and wires have no res0z8 0scqa j3mf)2nav *waf-k jistance. 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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