Electricity and Circuits: Complex Circuits - 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)?Electricity and Circuits: Complex Circuits

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习题练习：Electricity and Circuits: Complex Circuits

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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 connecte85tod ml zvg,7yzzg x)b)afcaw 7(b77d in the electrical circuit shown in the accompanyingtlz 78,mf)a xg7 bz 5b7yvgd7z)w o(ca figure. 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 electrical firag avi7a*), 2 0ckjcircuit shown in the accompany a2)afvaiic0k*jg 7,r ing 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 ele9 i mfqw,pedx4 g7p1*tctrical circuit shown in the accompanying figure. Bulb M burns out. Which of the following statements i,74p 1f gpe9xwdqimt*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 connected in the0z 22c( kkxfunnjsrj9h 7:yj+5mz kq- electrical circuit shown in the accompanj xj25-2snk( f7y:j9+z0kmu nhc zrk qying 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 light bulbs each, with a resistance of 10 oh: 3p7r 0zixkh-hcmv ,pms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagram mr-:kv3 phi0pxc7 hz, 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 co +db(9 uqsytj4nnected in a simple electrical circ 9tyu sqbj(d+4uit 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 fp61e)yc69hegynw+n: wh u 9p2s* nkj four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its 9*6 nnhge:+6k9fj1)we2 yhu pc wpyns 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 negligible resis+wjgap) 1k v6ftance is added to the circuit betweenfwav1g6)j pk + points 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 shorting wire (no reeju: sembcz*-e jxm2s 124 a8zsistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical and have resista28zme 2 ea*bsxj- 41z :smuejcnce 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 arej cj)7jtne qe20eb*8p identical. When the switch in the circuit is closed illuminating bulb #4, which other bulbp ecej2j8qtn* 0 7)ejb(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 as shown 7gijuaqlmt+mh-27o7h*n :7 espqb3f. All wires are ideal772*mst uq 3jmh7 hen7:flbo+ip q g-a 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 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 lighy**v 1y gisq+bt bulbs have identical resistance, the battery is ideal, and all wires have no+iyb g*yv *1sq 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 circu4djb:a :b6b0 z,j7h,fb-rnr lirh j0qit shown, the 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 one of the following choices correctly describes what happe7 - rfb0jqhd,n:bh b :zrba4,i6 l0jjrns 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 0r d)w-ptqf6;a:7rgmz etng)an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulb d)z;q-rpmgat0f n7t6:e )rwg #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 notws1f6t,.) vjdk ur5jr light? s56j)vw.1ku, rrjftd

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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, thd+hqa:u6gtmjidk6.o(x4, bp e ammeter reading is initially I. The switch in the circuit then is closed. Con4 xa6 m dgptb6o,.ikhq+dj( u:sequently:

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 07:appoai -d xbulbs 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 light bulbs will be di ai o-p0pad7:xmmer 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 h )ul z p82jln.bw7zri,j: 9lpgave the same resistance. The battery and wires pzpl9 8nibzlj:rgj7 w .u2) l,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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