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 electrical f74)hhgnl x o/q vt/6dcircuit shown in the accomp 4nv/ d7)ghlo6hftqx/anying 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 lightf tm9 m/gwt9c2bulbs K, L, M, and N are connected in the electrical circuit shown in th9 g2tmw c9/fmte accompanying 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 ak*6 q(o ;h idsq9tc,ifre connected in the electrical circuit shown in the accompanying figure. Bulb M bq id(cqfk96t,s hi*;ourns 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 lightbuia luk0p0: 3gqlbs K, L, M, and N are connected in the electrical circuit shown in a:0 p 0lgkiuq3the accompanying 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 re 3)o3yw x6o t;pkg:wvl/4tavi sistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt b 3oiw )xt6vtvpgo :l4/ky;3 awattery 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 oh)gvm 2iko3 z-lms, are connected in a simple electrical circuit with a switch and a 10 volt batt 2-3ig zkmovl)ery 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 i zywke/sr 4x78deal ammeter with zero resistance and four identical resistance light bu wxze/ rsky478lbs 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 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 shoruu;pmxu3 9z*n;b+ yotting wire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all identi3bo xu;py9*uzt +;n mucal) 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 czgghj 9eevi,un62 (,resistance) connects the points labeled A and B, whic6nicge(v2ge ,j9u ,zhh of the 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 connecteusp.; bq8y 072yw io +frok1 pw efe7x3o7e.pmd as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become brighteex 7 p 0 rmsf7w27 yi+po1;8 b3p.ykufeooqe.wr?

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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 inz r yk)dh4o+(zadw;4t to 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, whz;d4z )4wa( k rodyth+ich 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 h: wz+e1b nc*xmave identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light bulbs that eithwbm*+ 1:zxencer 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 qczxu wx 3l( 9:7 paqewe.najpl,2+2w shown, the four lightbulbs 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 following2 . jw7eq xlawwza2l9p nxe (qp:u+,3c 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 identicd vd/fpo2l6 wo8 +zw9fal light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, wh l od+o9p6d 28wz/fwfvat 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 o.75ub3gx8cq bwl8 )z5 bz),dlcigyt*5k u zokf the bulbs will not light? obiwbcz,b tklzycq85g.g7*) )z 5xu835 k dul

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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 vfab-5 w:raxjojj;,(6+qn xfI. The switch in the circuit then is ;xaq6ajow:x rb+ v5f,( nfj-jclosed. 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 hav xfa3*x. eou*we 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 bul*.* e3xawxuf obs 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 lightdif 34.t7 fwqp2sd fe.bulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of the bdd pff2 i3 f4qes7..wtulbs’ 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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