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 trv u-ew7e ulio;rm/2 )he electrical circuit shown in the accompanying fie;wu)ule-vr2/ omr i7gure. 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, eyl7kz3*wn0jq15l knL, M, and N are connected in the electrical circuit shown in the accompany7 l15kq0 jkez ny*nl3wing 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, and N are connected i 0lx *y8gzx9v ,sw m;os1iary-1iru4 on the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the lv4sxiawx ;1- mog0uo9z yiyr8*s ,r1following 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, kf: 8-dm7ocktdf- no ;and N are connected in the electrical circuit shown in the accompanying figure. Bnt:dkf8dk7;- o c fmo-ulb 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 resv vzu*c)30 rhmistance of 10 ohms, are connecr cvuv0*h m)z3ted in a simple electrical circuit 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 a resistance of 10 ohms, are cone q-+ycjiw fd 7bnmlk*::99 tdnected in a simple electrical 9dq+yewd*cl7 -j9: ti fnk:bmcircuit 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 hase*o flm y,)b8gl;dx /hz2i cr4 an ideal ammeter with zero resistance and 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 st)d/ r8mg4 coi ,*;f2xyleblzhatement 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 resistance is ada./fa3/fk8s x5utkf g ded to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all identical) in the circuit bru /s. ag5t/x f8k3affkighten?

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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) connectaram2x etb :.g-pb77 js c;ad( 2pircze4)c5 ds the points labeled A and B, which of tc:md .eb7ap-p cj2ir72 ez5b(st gad)axc 4r;he 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 connectedt hktd19n( j/.f7ffya as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also b n h(yf1atfdjft/.k79ecome 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 conz3qw/gk,ukj/ z f hz tm2.7 hjabf/.y7nected into a circuit as shown. All wires are ideal with no resistance, and the ideh qhj / .m3 ftb.f7k,7a uzzzwjkg/2/yal 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 circu7.czp v /h)pdz(18yjg jssj7git shown, the 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 beco.vsd hs g )(jp j7/8zyjg17pczme 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 ideno3o ,5q5yiiyotical 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 qy3o,y5i5ioo 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 convz-qvedc h-3l h:v:sd 43uf 1jnected to an ideal battery. If bulb #2fv1h z lj:d34:3-qdu-schv ev were removed leaving an 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 will not light?,sjb6, i1)k5a ;pyakaia h)pm m,iky), khpba i5j; as6p)a1a

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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 inpqhsko60 d: ;m the circuit then is closed. Cs;odp :6mqh0konsequently:

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 i5fdqi q,1vad; .:kxu95wmvccdentical resistance, all wirv5;ccqf9 1xiv5. qdu , m:kdwaes 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 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, mcqz5lh :92fv n+bp*jm +sq0qall three lightbulbs have the same resistance. The batte:m+*qq9v+fs2n5cjb zl qphm0ry and wires 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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