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

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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 connected in the e5b0r8 u hfl9vczhq o9, r-c6cvlectrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the brightest), the bu, c5u86zqv 0vflo9hb-h rcr 9clbs are:

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

98.27: Four identical lightbulbs ldl x93ft uduw wqo1 4biar5*2g s/bf: )3oy-gK, L, M, and N are connected in the electrical circuit shown in the accompanyin/if3g x dl *fugbr1bw 9dw:ol52sa)y3u o-4 tqg diagram. Rank the current through the bulbs.

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

96.37: Four identical lightbulbs K, L,o,8 n qyz/3rdy x f9ca-/mo8ym M, and N are connected in the electrical circuityomo z/ c, 9qrmn f3-8y/d8yax shown in the accompanying figure. Bulb M 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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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 connecyj ( g wx69m0tcztpmwc522tll200lwa- iskm+ ted in the electrical circuit shown l(9y5 mjw ltgt2cxmc+l0mz2 pw a0kw-0s6it2in the accompanying 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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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 bq en 0*jodtf49)a 4zhconnected in a simple electrical circuit with a switch and a 10 volt battery as shown in to4 9 je0)h4abfqzn d*the diagram below.
The steady current in the above circuit would be closest to which of the following values?

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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, oc3ali r+a* uj/x:j i9are connected in a simple electrical circuit with a switchu jr:ac/li*ix a3 +j9o 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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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 resx-yxsgr0y5ftbv mc5 9pnyz( /+ d/ /nlistance and four identical resistance lighc+sn-mzy/ b/r 5dtxg /l 5vyyp9fx0 (nt 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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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 )j ovyhow.:-i of negligible resistance is added to the circuit between points A an i.h)j v-:owoyd B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all identical) in the circuit brighten?

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

09.26: For the circuit o ,wr* 0vu-)flptu qk4shown, when a shorting wire (no resistance) connects the points labeled A and B, which of the numberlu,f 4-vo)tkpr u q*w0ed 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 connectzh.o mw*jhb m a354p4oed as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, wh3p5mawz44 oj m*o hh.bich 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 co(m;3c tms9t wnnnected 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 circuit is closed, aside(nt cm;tm3w 9s 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 sh h-p rm-fo;gt,own, the three light bulbs have identical 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 switch, S, in the ci-oh,r ptm-f;grcuit 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 shab *zcp mhn;au/h(gp): ;uh :jown, 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 happens to the magnitude of the current at the point labeled P and to the magnitude of the potential differzn: bgppu hahc;a*/mh): ju(;ence 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 a1)ivj dakn/5 hn ideal battery. If bulb #2 were removed ldi15hjv/)nak eaving 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 not ly6x9wz3q,3izz lne: i0*i xseight? wlzi3 szxieyz :i6*q9,3x0ne

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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 repjb: eb4d)9kt ading is initially I. The switch in thb)4b j9:pdekt e 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 light bulbs have idexccdy 7. ial kgp 7fdh1oc+612ntical 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 adcd16lkpcgh2 yx.fo+7 1d 7caided 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 lightmpka ;q8a.8bb.2gx4 u nzspp*x8 n0xf bulbs have the same resistance. The battery zb b8.;pn 2k8q8a xf *n0x4mxspu pga.and wires have no resistance. What is the proper ranking of the bulbs’ brightness?