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

1#

94.28: Four identical lightbulbs K, 3a6 x9c wpq9q g;ddz.hL, M, and N are connected in the electrical circuit sc aqx6 g.hpw9d3 qzd;9hown 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 lightbulbs45mu a,u9f6wf3*ncwem lsi nu- od7k / K, L, M, and N are connected in the electrical circuit shownl6nmwu9f e- mka no,usd/ fuwc4 3*5i7 in 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 lightbulbsa u+9eydsc+e1 2hkq-h a 4st7ji;0hgi K, L, M, and N are connected in the electrical circuit shown in+yuk iticd h24ee9h7qsga j1 0a+; -sh 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 are connected in the electricavr7m1z2d d z/ql circuit shown in the accompanying figure. Bud1z2v/qzrmd7 lb 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 t erp-f c5v(y 3irs2+tresistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagram b3sc-py+(vfe2 5itt rr elow.
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 identica4cwqdvt9 * b8ll light bulbs each, with a resistance of 10 ohms, are connected in a s4 d9w b8vqtlc*imple 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 with zero resistance um7,x;/p i;r bbhpu d.and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking the elecxrub um /;i;hp,.db7 ptrical 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 oe 5*z)ias.pj* cef:8.mvma5 lch *f ppf negligible resistance is added to the circuit between points A and B. When this shorting wire is added, .lpa)fa:5fm* mceh *ip*5pev cz8j s. 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 resist r+p hha+gdo c;/;buq v2.lt4nance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identic+gnoq+;t h4u. b 2/ ;harcdvlpal 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 connecty .dwxkyr7v-2 ed as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become bry7vxd wy.2 k-righter?

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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 bk,jl mmmy )(w ;tsn;h-ulbs 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 cl hm) ;ly;k( wjm,-tmsnosed, 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 i byc0esk0jx:z w88;aidentical 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 switch, S, in the circuit is closed?ai8s0z 0;xkb 8yjc :ew

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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 lightbu) cepv;g/br 8ewnrvtqar -25:lbs have identical resistance,the battery is ideal and all wires have no resistance. After erv:r;rn- e)8p 5 wtgq/2bvacthe 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 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 identicddk *zo jsl phi-n 4qq016:s5sal light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what z0qo5s:d6d*nl-qip hs1j4 skhappens 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, which oneus9 3t xz/ ar4z, b)bgfaz*4ae of the bulbs will not light? )bg r4az,*es /9ab3u zfzxta4

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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 ammeo 0 5p o/js2ahzu-sfh1ter reading is initially I. The switch in the circuit then / fs52 -0jh shzo1upoais 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 four light bulbs have identical resistance, aln/o+ /qbdov,ol 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 zerv/ d/onq+ b,ooo 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 samej* ze +zfiop5dae-0y; resistance. The battery and wires have no resistance. What is the p oe5zy az* epi+dj-f0;roper 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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