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?作业考试练习?美国物理杯赛(Physics Bowl)?Combine Problems

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习题练习：Combine Problems

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作者: admin 发布日期: 2024-08-22 15:24 总分: 18分得分: _____________

答题人: 匿名未登录开始时间: 24年08月22日 11:37 切换到: 整卷模式

1#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

94.28: Four identical lightbulbsrut ix;b.b5)avgekl j0/44. vrylq uwrhm(01 K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the.buy;rrku.le(v) il0hq g x04rj 5/ 4w1v btma 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 ligd6x0wtjg wj,c,vl ,h4 htbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank the current th,6hd4l wwj,t jg vc,0xrough 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 identicall , h 4qgufpj///d5px 0vqq7lx lightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb Mlxlxq4u /j0 7g/hppdqvq,5 f/ 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 *asy8 oos;ka2:qznta(1j v9gK, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is tt q o2zys ;aj on:*g8(aka1vs9rue?

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 d 3lcm-f2j51hd wyu0 olight bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and05-ojd3mlu2 y1whcf d 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 resistance of 10 ohms, are connhg ru*+g( qa9wected in a simple electrical circuiqu9gw+ar( g*h t 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 z;vkpm-h aov(8wxeeg 9u 4u(u.ero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking the .v huu(;e-kem(8vpa g x4wo9uelectrical 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 sho5 f/bq+pkni4+ m:veem rting 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 bulbs (all identical) in the circuit brig5qm: +k fnp+4mv/ eebihten?

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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 reszo l8t6, sslue -0wt)fistance) connects the points labeled A and B, which of the numbered lightbulbsto0l6l-ts)w8 ufe z,s 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 are identical. When thecj5f 71 v0cath switch in the circuit is closed illuminating bulb #4, whicac tchf517jv0 h 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 aetxd. v0u 3f.pacz7od vh/w 98re 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 circhd9e3 pvu8 w7 0tzfo/d avxc..uit 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 three light bulbs have h /l4z.7hd(bd3rvmp2)km t kfidentical resistance, the battery is ideal, and all wire)k3 t / d7(mhzmh pkrbd24fv.ls 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, tye1- i8d yst -y6uknk*he 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 oneysnky u8d*i- 6ye-1 tk 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 ideal bat9:lgu aff5mgii .,)p itery. If bulb #2 were rgfmgii,f laui5: p.9) emoved 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, which one of the bulbs will n ,q;2jsa-bxtaot light? asaq ,jbx-;2t

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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 initit, pite+i7 7(vgg itgkh(n. :45veceually I. The switch in icu(. e4ni7t,tve(5ikgh7 gegtv+ :p the circuit then is 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 lps +yrr(gt) :n-5imnc ight 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 zet(p cr- +r nnm5isgy):ro 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,jog c8-rdlw+: all three lightbulbs have the same resistance. The battery and wires have no resistance. What is the pc 8gjro-+:ldw roper ranking of the bulbs’ brightness?

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