Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K, L, M, and2hu+94- rwxxbmgjm4; q ohwk: N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting2x4hkbo w u9+w;:hr x-j4qmmg 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,5c4wrkaax.,j 8jg: og g5bd6+ed.v xk and N are connected in the electrical circuit shown in the accompanying diagram. Rank the5c.4+ gxaovxb.kead:jj, 5 d 86krwgg 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 light9 m;wzvqn3o j*bulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bnz;w3*oq j mv9ulb 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 zytly*(7 /yxlN are connected in the electrical circuit shown in the accompanty ly(*/7lxz yying 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 lightys rb3;ecnh*q*6 q3,erqer0q bulbs each, with a resistance of 10 ohms, are connected in n,e qheybr;sq6qr0e 3** rc3qa simple electrical circuit with a switch 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 eachyyh+4;d0cvck .kq ; vz, 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 dcczk;.;0v yh dq v4+ykiagram 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 pun67/os f9 ec0v qiv*ideal ammeter with zero resistance and four identical resistance light bulbcn/osvepuqvi f 67*09s 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 s y/yqubby 95.chown, a shorting wire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 gob ./ bc5yqy9yues 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 shozcg;q vi/*lrm. )ka7nwn, when a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all r k7ga.zq)i*vn lcm /;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 lightbulb,j7m2 ng -r(hdpsz-ebs are identical. When the switch in the circuit is closed illuminating bulb #4, whi j-serzndb(-7,mph2gch 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 connected into a circz:6g7v j8yex 5e 8rnwjuit 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, which of the other bulbs brighte ynxjr jg786v 5wez8e:n?

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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 tb3(m+vv n )gkxhree light bulbs have identical 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 thmb3n g+()vv xke 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 light x8: pcm6*q y jcif7(ml6agl,ubulbs 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 whm:pij,*u6 y6 7lqgx 8(acfcml at 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 lights d* lp;3.bvlsp 6g4zr bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, sl b*; 63.zvgpl4psrd 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, whiccj.kjb.qm .0 sh one of the bulbs will not light? .kjsq.0 mcb .j

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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 idgckps6o- 7h.,( gh .gtxazq.nitially I. The switch in the circuit then i7gd.. c,.hp sz h-tg6k (oxaqgs 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 sh l;)xfbft7 t-aown, the 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 ci7ffa b lt;x)t-rcuit. 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 ligh,w f)dw7s*hzj/ea:+ o,:tld0ji c wzatbulbs have the same resistance. The battery and wires have no resistance. 0)w7 j/s wo::hzawi+tf,, *cd lzjead 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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