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 electrix. dx9fgu5nri; om;4vcal circuit shown in the accompanying figure. In order of decreasing brmvui94; o5xngrxf;d.ightness (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, M, and N are connected in the yo1nk49bpj +3p r7i 0d hkuya8electrical circuit shown ij k9h0d+ n8y7ok4ur3py1 bapin the 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 are connected in the el sg( v6o2ov9*lof3 vhiectrical circuit shown in the accompanying figure. Bulb M burns out. Which of the following statements is t(v io96 ovgf3lvsoh*2 rue?

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 electrlm6sptnqq34 m5+nb8y,is m u(ical circuit shown in the accompanying figure. Bulb sn3m nt5p6lu+q8m,iq(4msb y 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 resistance offdpsc8s5q-mi;bn8 t/ 10 ohms, are connected in a simple electrical circuit with a sw;c fmpd/ 8is5st-q8bnitch 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 resis:wqk6c* qy6.+whx ne ih woej6752 moitance of 10 ohms, are connecteeqie66wykwon7 j o.+i2qx:h65h *w cmd in a simple electrical circuit 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 has an ideal ammeter withvgop 0k;cp3(q d11iw aszsz9) zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking t19dqw0azpozc s; 1g(3 i)vpskhe 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 resistancn1* 59yk+tndw n/pu bxe is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which utx w+ y1nbndpk9 */5nbulbs (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) connex2ttqy1qgmr6 1, x5gj )/aveg;v tsu.cts the points labeled A and B, which of the numbered lightbulbsvj6vt1qsxty1r25gtua) x gq ,gm.e /; 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 ar igjg1k ko.)jm2o cvk 9j0b63le identical. When the switch in the cirlj9o2 .0jm)j6kkg 31gcikvob cuit 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 connectedns2)edz e/qae1 //j;; qvwhdv 9jqaw4 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 bulb #5, whdw2 edh9e)4v ;/nqje;v1as/qaw qzj/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 zw*yj2b 4yvuv * 7s5qxpd 58bahave identical resistance, the battery is ideal, and all wires have no resistance. Which one of the followd4*bsv5auxjv*wpbqz8 75y y2 ing choices correctly identifies 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, t8jef 3oi. yo3b o3+swuhe 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 following choices correctly describes what happens to the magnitude of the current at the point labeled P and to33+f3oo o.j8syewuib 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 an ideal b4v0pd/m/jsn6-0p dn+ *f: wf gyhjnw batter/ fn*:0jyjsh4 mw6v0n dwng pdf/p+b- y. If bulb #2 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 lghdv1v :r dg387sxo1, which one of the bulbs will not light? g1l vh87 d1:rgdoxs3v

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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 ammet 4 p5qyow:mtf8er reading is initially I. The switch in the circuit then is cloy4:o85 mf wtqpsed. 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 sh*k,yf xtuhv :7own, the four light bulbs have identical resistance, all wires have zero resistance, and the batt:*ut vk hyf,7xery 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 lightbulcalnzo*-4gc4 5 li7rxbs have the same resistance. The battery ando5 4 czxca-nr l4i7g*l 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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