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

1#

94.28: Four identical ebc ys6x29 ag(lightbulbs K, L, M, and N are connected in the electrical circuit shown in the 9ge6acb syx(2accompanying 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, Mery f6ofrc 0f(:vl-h3, and N are connected in the electrical circuit shown in the accompanr(ce6fffv yo3-r h0 :lying 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 in the eleco8 xwf./t/cmutrical circuit shown in the accompanying figure. Bulb M burns out. Which of the following statements istm8/u/c wf .xo 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,:rw/ n5uotb2k2m r id7kv7z+ d and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of theb/77zdu+t r2nmwrkik5 o d:2v 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 lsr4b8 qs8he :kight bulbs each, with a resistance of 10 ohms, are connected in a simple electrical8b8 q:4ekhssr 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 resistr :v e 5i0wm)sjn9hzkz4ggd2+ ance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown49s+d jhzgwzik)v2 mer 5:g 0n 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 wium, eof/ s7oc2:v9-aoib8xq ith zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking tobiqis v-c9ueoo a8x f 2:/,7mhe 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 resistance iz jxm,;ajfpi5d /u1maj*k5r :s added to the circuit between points A and B. When this shortip5j/amz1j;x *,:jfraim5k du ng 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,9 t o:hs3xkfkk;v 7;q 8g)lte gbjjw90 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 identical and have; 3osltjgv h8kwke tx)qfk0;gb99:j7 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. jk00ossv 8)m8 dgkdu 3When the switch in the circuit is closed illuminating bulb #4, whi j )300dkugso8s 8dvkmch 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 a kb z+.g3yxokt4xe+/j s shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S in the circuit is +k 4/gjxok.t+ey3xbz 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 resistanco 7g e0d *eesmwxxt+js pa:/+.e, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly idend ge+.a0ee7s:o+ pwx/t*sm xj tifies the light bulbs 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 iden ( 7s8qay2ib61zpuwavtical 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 ofs(vaz7 uq2ay6 8w i1bp 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 light bulbs connected to anyjy 22e3m+ :jc8h+ xx.ilq6jx)fz xa k ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulb #1 and from lh zxxya6j+q3i:f.2c8xj )2y + emkxjQ 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 ligd) k/zs(nxqm5 ht? )qsdkx/m( z5n

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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 sfswkuc: h 93u xb19pb3witch in the circuit then is closed. Consequeh3b:9 39kf uswpcxub1ntly:

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 -f. 2vi)1 y6r uixxiqffour light bulbs have identical resistance, all wires have zero resistance,-xiqi)16yff.x rv2 ui 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, all three lightbulbshyf 3oij 8kf(z3nr7*7vm6cbd have the same resistance. The battery and wires have no resi (i bn7fk6o3dry3h8v cjz *7fmstance. 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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