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

1#

94.28: Four identical lighc(07v qy8 /udo g;zuevtbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasiyovg v7dze (u/8 q;u0cng 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 lightbulbsvb16p 2p.eig u K, L, M, and N are connected in the electrical circuit shown in the accompanying diagram.ev2g b16pu.ip 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, 4g0 bt7p0p)ewt dtfidq7 hdu60( usp1and N are connected in the electrical circuit shown in theb p0u u)s7e7fq1i6tdp0p0t( tdwg 4h d accompanying figure. Bulb 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 K, L, M, and N are connected in the electrical lm6eo d knxf*gd- z+f6l-6zy.circuit shown in the accompanying figure. Bulb K burns out. Which of the following statementszglfy d-dzxo*ek 6fn6 l+ .6m- 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 b vt 3ki(m +mq u6/d3kc0tv-yklight bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the d+ ik0mbv3qv63ykdcu(/t t- mkiagram 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 rese1(b hagn/bslx71v6l istance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagram below.e1vb (61 lbxa7lhs/gn
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 ammeterb*nw7x)4 z.tw (msa ex with zero resistance and four identical resistance light bulbs which arzxsbwwmt x*7n.e4() a e 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 shorting wire of negligible resis2mv;e8xohkne80v5rvog 4vk-tance is added to the circuit betwk -ov;k2eo58 exvvn m8hg04rveen points 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) connec2:g;g q3r6unvtji ,v bts the points labeled A and B, which of ti g,; :uvr 6gq2jtn3bvhe 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 connected as shown. All lightbulbs are identical. a o wno9(xx r:w94kz )bye5;hvWhen the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become brightere(wb; wo95 nkrxy 4o)hv:9 xaz?

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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 bulbbl42hum4hs51 z8z4cd gz7hewk15j jf s are connected into 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 bu l b7c 5 1jzms41jghh fd2e5z44whkuz8lb #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 identica2*hg mde8xt c-l 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 completely when the s*2h-mgdx 8ect witch, 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 resistancewmf dgq6 o5(d1,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 labeled P and to the magnitude of the potentiwm5gf 16(qod dal 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 identi- u2yxzbp;,o fcal light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across 2bp ;zxufy,o-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 buw+v97d )o,y 5ctnj:lq1 hf7bbcy3 heulbs will not light? w3 ty)7bf b9he v cc:7lh5nqy+ ujd1o,

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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 ammedcw:88b3 jqz jter reading is initially I. The switch in the circuit then is closedjb:z3cwqj8 8 d. 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 resistyjr05s.mrx t, ),qjubance, all wires have zero resistance, and the battery is assumed to be ideal witmq,stj bu. 0rjx y,)5rh 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 same resistance. Thnm) eri4udzb/70 x( aze battery and wires have no resistarn7u0bxadz/i mz ()e 4nce. 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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