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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: 游客未登录开始时间: 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 lightbulbs K, L, M, and N are co*gvf,dn e1a4 8brgajw66b j/ dnnected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting wit ne1 jb66g*fd/gawr v4ad ,bj8h 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 in the electrica40w *syi: baufl circuit shown in the accompanying diagram. Rank the current through the bufu ws*ia0 by4:lbs.

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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 Kwegrda;(0a u; d-u6sw58wci g , L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the fauwwdarwc5 8g-(i ;gs 60ud; eollowing 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 lightbidm n9ea,v g8d.8hkb* ulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulbn*.,hdgda9i 8be8vk m 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, it68p6 lsw:wb with a resistance of 10 ohms, are connected in a simple electrical circuit with a stpww6l:b6 i8s witch 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 each, with a resistance of 10 ohms, arezh 4bk a 9tt:9u/oqs(r connected in a simples4 9a9t: roqtbk(/uhz 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 aab: l5 )1rp gg54 sv+gkazwv)lnd four identica 1wz+sa) kr)vl5glga4 gpvb:5l resistance light bulbs 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 shown, a shorting wire of negliiu3rdick9g*dy k9 wsyc6pyc,+8 cyn( :5 b4 bygible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (aycbncwk8y*+ r3dbudk69,cs49 y :5c(y giypi ll 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 th-b qdt)-qnw(v e pd-v(qwq tb)- noints labeled A and B, which of the numbered lightbulbs 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 8k)ak y*5wg msshown. All lightbulbs are identical. When the switch i*k m8ys)5gk wan the circuit is 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 light bulbs are connected into a circuit as1jgwpfq0d+ bk8ui52)vu zv)k,- zr pv shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S in the cir b1d 2kz)p vug)uqwkv0i5jp- 8 ,+zfrvcuit 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 identical res2ep -g,kzy )mpistance, the battery is ideal, and all wires have no resistance. Whim) -ypp2, kgezch 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 sz8dpgq 776hmcb bv67 four lightbulbs have identical resistance,the battery is ideal and all wires have no resistance. After the swi7g7b zshm876 bp dv6cqtch, 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 ,ali9.skn8kw uohmr2zf 1 8:khas 4 identical light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit therk:8i hlz 8,raw uf1sk 9n2okm.e, 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 nu,w.y4jzl 8;xfo+ff) lrq oq+pfvk;7ot light? f+vljo .8fq;xop r f,yw+ ;)fql7 zu4k

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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, t,a* zr h3fg vi) 4dcxkl9o62glhe ammeter reading is initially I. The switch in the circuit then is clox64g3ck2 ,rdl9 )vi hgfaol* zsed. 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 resistar18cfbr r -it3 wp+5li(du. vlnce, all wires have zero resistance, and t+81uc.wri rldv5if- l3bp rt(he 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 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 threeo0jxz3uv0 .tg pz-q j9 a1bbk(kch50e lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper rankin tkzg-a(h jpv0 kj10u czq0be93bo5. xg 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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总分:18分及格:10.8分时间:不限时

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