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

1#

94.28: Four identical lightbulbs K, )o0w 82e bfonkL, M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (s) k0e o2onbw8ftarting 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 inl,lzmx2h8dn m4 h i2f7 the electrical circuit shown in the accompanying diag, hlmlm2d nhx78fi4z2ram. 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,2qwvv sb8bpr0b 9l6+d L, M, and N are connected in the electrical circuit shovp8b2 +qld9bw0v r6 sbwn in the 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*vc 1: bpqh6-kfwt i8q are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the follop6b- k1vithq cf:wq8* wing 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 bu 1s)9 rdkyppuuy;ov(2 lbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery rpyv1duu( ;9 s2yp) okas 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 xh 04jdo.am i.bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt batod ..xjim4 h0atery 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 ammeta-yd-f+kxio:l5 f-rqer with zero resistance and four identical resistance light xfdi a-r-y5:o +kl-fqbulbs 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 shumxc+o1 0 m xw7c 9(hwn6-rehhown, a shorting wire of negligible resistance is added to theo7 u+-x9w nwh1 rexhcm6mh0c( circuit between 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) connects the-t vw o1:dswa5 points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical and have resistancew a5t-dwso:1 v 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 w2 aoc g;r /(r46rntchx )dk(rujnp:mehf,96shown. All lightbulbs are identical. When the switch in the circuit i69/tn(rg:6dpuj2c or m(rhch) xnk,; r4wf e as 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 lvvgh:ffqq)6y x9d ) t 3 f4og/bhc2*cfight bulbs 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 fcg*4y :2ft 9c/xhog bfd)f qh6vqf3v)rom 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 htpx pt n6+d8x 34i;jjjave identical resistance, the battery is ideal, and all wires have no resistancej+ p pix3;tx64j8tjnd . 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, plhe3;2nhdp7 b9q a /vthe four lightbulbs have identical resistance,the battery is ideal and all wires have no resistance. After the switch, S, in the cq; 3 nehd7p/9 abvhp2lircuit 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 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 ;,je rw1q;7znon. h zjideal battery. If bulb #2 were removed leaving an open circuit there, wzoq1r.7z e;hnjw, n; jhat 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 hq0 x4(ktm(o3ofdw4c, which one of the bulbs will not light? mqo403(ch (dw f4oxt k

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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 ammetx;w.kln fy(+ z+lq1+qaty o+i,ma)8fg x h6r ter reading is initially I. The switch in the circuit then isftw q+;k.+n xfit++g 1y yro z6aa(x,lh qm8)l closed. 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 foux7+zr-a ee nr7j*ndu:r light bulbs have identical resistance, all wires have zero resistance, and the battery is assumed to be ideal wi:a7* eu-ndne 7zr +xjrth 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-hr4jus r l./ ouk3bx4, all three lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of the bulbk3-b.s4rr/4 uhuxolj s’ 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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