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 the electrte7m xe/ore1. ical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the bright1om/ xreee .7test), 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, a)ps mmz ik)019,isdutnd N are connected in the electrical circuit shown in the accompanying d9p1sis)mmuz)0 ki,dt iagram. 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, and N are connected in the elec i-cpy9a2r7 rntrical circuit shown in the accompanying figure. Bui72ra9 -nrcyplb 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 hi; e u- rzi5nigvttbk or)*783c;y4hK, L, M, and N are connected in the electrical circuit shown in the accok iybruc- *h45eig;r783n o ;z)h ttivmpanying 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, with a resistanhey yq7kt5cw7 j/sws -ni i)4.ce of 10 ohms, are connected in a simple electrical circuit with a switch a -wjt5ci/y 4es.sw7iynh)7q k nd 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 rn7ifta5 a9ucd 5t(jr) e-ez 50qp l6ftesistance of 10 ohms, are connected in a simple electrical circuit with ated trz 75jin9 (506eaq af-uc)5ltpf 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 ideal ammeter with zef(o -lvci p,(oib i2;giasen6n9.m8s ro resistance and four identical resistance light bulbs which are initially illuminated. A pers n8fs6iig((i baliecs2;-9vnp.o m,o on 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 shown, a shorting wire of negligible resistwymh3j g-/**4m bv5yu/mr y 9)r qqygeance is added to the circuit between point5j/ge g3 w) rb-*h4mm9v/m*quryy yqy s 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) conn(ly2jbde 6 y9//o-pcsjh.u yiects the points labeled A and B, which of the numbereyplu(/y j6-j.ds ic9o y2e h/bd 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 3h/7b /z8fsvqep b+raare identical. When the s+vahb3f/pq /zrs b87 ewitch in the 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 bulbs are connected into a circuit as showna5tf txb4wo 9;. All wires are ideal with no resistance, and the ideal battery has e5fo w9abxt ;t4mf 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 3ug;3nblqo/nx 7 +(i lbo vt(jlight bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light 3 ibu;ll xgn(b3njv7o/(o q +tbulbs 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 four lightbulbs have identical+l lq+is,t- a(pkt:uj 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+li,l+taq(:us - tjp k 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 ident5 0jx0rzyh6xhlvp k; a**2p/ ub)s. in fndmg.ical light bulbs connected to an ideal battery. If bulb #2 were removed leaving aag/ k. b yzjnsx0 uhhpvir ;.0lmpf26d)*n5x*n open circuit there, 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 diagram, which one of the bulbs willj ,i1f 5wybj;x not light? 1 5xy,f;ijjbw

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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 a.r aah;;m/yys*r r3 gkmmeter reading is initially I. The switch in the circuit then is clo a/ar3yks* .;rg mrhy;sed. 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 four light bulbs have identical resistance, al8 7,mrr)/ ob egb0v.irho 4smnl wires have zero resistance, and the battery is assumed to be ideal)brvms.g8r 0e rh,/oi7mon4 b 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 syzapbulg;55n5-6x.a)+kqo:zkz5o, xvmn qp ame resistance. The battery and wires have no resistance. What is the proper ranking y ,vu;kaol5 o+ gxx m5.pn-:akbqz5pq)nz65z 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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