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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 lightbulb, :i- txu ; mg(06x4di1/qtgzjtioww ls K, L, M, and N are connected in the electrical circuit shown in the accompanying figugti(mut, zg w x1 iwjo6t/;i0qd:lx -4re. 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 lightbulbs K, L, M, and N are connected in the e1a ;xl,r;up4maut : svlectrical circuit shown in the accompanying diagram. Rank the current t;:u u 1v, aratm4;spxlhrough 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, L, M, and N are connected in the electrical qz /du2ky ,fr43/tr cucircuit shown in the accompanying figure. Bulb M burns out. Which of the following statements ir4 zfq/ t cuk2r,3dyu/s 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 conne:(fq/wq/z o .dm ylwjky;: qm7cted in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is true?y;w7/qmwjfd (:.q/mo lq: zyk

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 remk4.t 10ox83 osqxfnk sistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt batt8s xo mk4f.t0okn q3x1ery 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 res*jiwwuij0 d fy7 +a1*tistance of 10 ohms, are connected in a simple electrical circywadjiji 1*t w f70*u+uit 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 and fo di.4 57(v6mhbcpofy hnq :p,yur identical resistance lightip n.cq4m,y:6v5h doyphb7( f 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 neg d64unw ajy09gligible resistance is added to the circuit between pointsy 9audgw 64j0n 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 short 5ey 5bhyb5g.ling wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are ident5e .yyghb5 bl5ical 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 c60 k:,2gz7yzfjbm n k ,lrf9slonnected as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, wy,r gf0knb9 62k lf ,:zmls7zjhich 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 ) jnys zt4hps p1*f z6lb2w7vn9(vsz.into a circuit as shown. All wires are ideal with n6f )s sh njp*zb1vl74y2w p9z(.tn zsvo 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 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 z+wf:b 9h+ynnthree light bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly9z +yh:b nwfn+ 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 four lightbulbs hav/(4nf txh)pi0 3t+g rjw/cq bhe identical resistance,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, whn/h (pqrtj4) hwf0tg +b x/c3iich 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 idvkdk9gn70 )j o1b7cc ltz9 d:ientical light bulbs connected to an ideal battery. If bulb #2 w7bk) o:k l9dzcvcd7ig91 t 0njere removed 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 diagratt3m- uyt4hg 0nw 0mur59cb9 vm, which one of the bulbs will not light? tu50mghtbn9- 3 y m0vwcr9tu4

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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 initially I. The sw05qm;m7 i ntfpitch in the circuit then is closed. Cons m;iq5pf7n0mtequently:

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 have2fbvxa.u x13p identical resistance, all wires have zero resistance, and the battery is assumed to be ideal with emf ξ . bx.up3v 1 fxa2When 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 three lightbulbs have the same resistance. Thes)il/ xjoex (lk67 /m (usapz, battery and wires have no resistance. What is the proper ranking of7mk/ /6lj,opai xzu(s)(x e ls 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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