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 elecjvr; j8x(8jnot s3f2utrical circuit shownf3r s n8;j (tuv8o2jxj in the accompanying 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, M, and N aren1v2 ftxva5vp 9ds 8 s.vcl33w connected in the electrical circuit shown in the accompanying diagram. Rank the cu5vlxtv 1n.2v8 s9wpavcd3 sf3 rrent 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 fke0h,8f4ke w. xzoqk ,5;hu telectrical circuit shown in the accompanying figure. Bulb M burns out. 5fkqz whhk;eketfx.,o, u408Which 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 reex bij5 /o6n+y mt6*are connected in the electrical circuit seni+*mb66 r/xojy e5t hown in the 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 resistance ocf)x3ihz. coj9u *e0 zza b,a1f 10 ohms, are connected in a simple electrical circuit with a switch and a 10 *f1o z09bizczhac u.3e a,j)xvolt 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,yvc5jk*om9y -.0 hei w with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and h*kjv-0e9w 5yoc yi. ma 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 e:10mwqwfwo9n f :(f2y ,-hu beq3vtc ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person remouy: mqf,owcweeb1h2tf (vn3wqf -:9 0ves 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 shownfb i16ih;y,7oe vp*vv ooqx0 t1mce5 4, a shorting 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 bul;e,1 oi6q1iym5vov v4 b* cxoh0p e7tfbs (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 shovp,m7j 1 7ryqbrting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become b7 vqr,71by jpmrighter? 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. All3as aive3.s7wu x +1pz lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become b 7ea 1u3+sxawvsip.3zrighter?

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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 ckgs90cttky5lk u3 -u-onnected into a circuit as shown. All wires are ideal with no resista -s-cuyltt5gu9kk0k 3nce, and the ideal 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 circuit shown, the c/ oqpa3de 3-nthree light bulbs have identical resistance, the battery is ideal, and p3e3ca dnq/o-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 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 iden51slf1i 4qdb vvhhtl-6 sj9, otical 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 to the magnitude of the potential difference from Wto Xq91vlb 4f s1j,dhh-t6v i5so l?

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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 batte(dx ua pz3i+mdl.r- v+ry. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulb #1 and from(m.d+vr+3 pdlxu -iz a 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 willm 8ik6wdf,; dws.w hn x+olh:2r*oc.v not light? c xs dn*k2, iv;lho.whwmf.: 8r6 +dow

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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 initiallw,vu97 tuzv- ry I. The switch in the circuit then is closed. Conuz9 u vrv7,tw-sequently:

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, vl* r t:ssf4jikw78 ;mthe four light bulbs have 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 ligh v8j7wsi4t ls;m*fr:kt 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 lightbulhhbquga 6z 5n*jei )a(31 3-tos0jaefbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of the bulbs’ bjueh(a 0-fnaz) e3ah3s 5bogjqit*16 rightness?

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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