Combine Problems - 无忧得胜-网上国际课程 (5edu.win)

?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,d:o g )3vdgy7 wpqsb)1nzy(n , L, M, and N are connected in the electrical circuit shown in the accompanying figure. In y q7s(:gown g,vp)3d)z1 d bynorder 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 qkh ic 2 -.r.k1i-h1o- mljmpbx:eli; the electrical circuit shown in the acc lr . k i1q1-oxi2 mpkh-lbj-iehm.:c;ompanying 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 lightbulbs K, L, M, and N are connected in the electric6ou r*bvn1vw +4ha2s dal circuit shown in the accompanying figure. Bulb M burns out.6w1uo24br asnvhvd+* 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 io8 o.uz wqwnh6z.3)zh n the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is true? 3zz6).h wnwo uqhz. 8o

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 resistance of 10 ohms, are coi qd )p;rb;0lqyx (az/2 gmlje8vsi) 4nnected in a simple electrical circuit with a switch and a 10 volt battery as shown in the 8p)b;m rd2a;xl i( v 4izq0sgljqye)/ 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, arex3fg p1rr8 h5yxiin(v//g6 qm) 9p ypj connected in a simple electric/x rpjgy8g/) npiqh63 5 vy1irxf9 pm(al 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 shownbkap q*xc.-d - has an ideal ammeter with zero resistance and four identical 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 *ba k-p-.dx qctrue 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 negligible resist- fsq1 2k s-sfd)eq6tjance is added to the circuit between points A and B. When thiqf1k s -)efts2 sqd6-js 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 shorty 1z3hu6sui fp rdw089ing wire (no resistance) connects the points labeled A and9w6y83f hu0du spzir1 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 shown. All lightbuv*.-vnaam qn)lbs are identical. When the switch in the circuit isa-m*av qvnn. ) 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 cir b*7stiu tvk;ksji* 2/cuit as shown. All wires are ideal with no resistance, and the ideal battery has emfj s*s7tvt* i2 kubik;/ 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 three light bulbs have lbfjlry3uc( 6aprnc0h)10(m 2 l h(mgidentical 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 switchugp02l(l6fm r 0cnhbl1((y rm ch3 )ja, 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 have ik -gm 15 (n) zmcurnztqm1sp;)dentical 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 what happegc 1()n;zpznm) -mrm k5us tq1ns 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 identi2q4v+fi6+bf swsjgdzj5( dl 3cal light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across bothjdgw4sf523+fsj zv6 l b(+i qd 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 followin,u.5y1 rowetn5b zs(f g circuit diagram, which one of the bulbs will not light? n, 5e u5( 1bw.sfozryt

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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 read7ub t-dnkn gg 8qu,p2(ing is initially I. The switch in the circuit then is closed.2d7(qn uukgt-b8gnp, 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 l :xj umva8pm74ss8fh* 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 zero resistance is added into the circuit. Which of the lighf4m h 8juas:m8sx*7vpt 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 h58/fugwt fs 6the same resistance. The ba/hfs85 fgt6wuttery and wires have no resistance. 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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姓名:游客(未登录)

总分:18分及格:10.8分时间:不限时

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