Electricity and Circuits: Complex Circuits - 无忧得胜-网上国际课程 (5edu.win)

1#

94.28: Four identical lightbulbs K, L, M, and N are coj10rw :(9kx td .srwxpnnected in the electrical circuit shown in the rp1xs r0wwjk(.d:x9t accompanying 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 bup82qycnr o m::ii-25kso,:* etheqare connected in the electrical circuit shown in the accompanyi,:h5 poy8r2:ioi2se t qb-une mqc:*kng 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 ele: nd hve +jcz3b-6rob2zsgf30 ctrical circuit shown in the accompanying figure. Bulb M burns hs2d3gf6rev-bn+0 o:cj z3 bzout. 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 ,ftjb ,s(qxu6 K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the s ft,(jqx 6b,ufollowing 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 o*,: xf4(x vy6e j 5koy;itc fegw*)vusf 10 ohms, are connected4ik*vc,;ye(v :xg)*usex yjo65tfw f in a simple electrical circuit with a switch 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, areone: 07tm) u dfm4f*zd connecteddm0ndfzf: 4o)et7 mu* in a simple 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 and f ;5so7avvk25 j+rdke qour identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket tv; 7vokd +jr s52e5aqkhereby 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 resistance is addedn7j0vq3 , jcq2z4klav to the circuit between points A and B. When this sho3a2l04j ,j c v7qzvqknrting 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 shorj3wtu:sss *t r, tn4v8ting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brsnjwts8ust: r4t,*v3ighter? 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 lightbulbs are identical. When t1vkadcl 7 gv(1he switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become bri(gdkav 7c11 lvghter?

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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. 9 a5:0xj 6fad vtmi n.hli5hl1bqr,f) All wires are ideal 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 bulri. q5fvb5aai m1n0td 6h9:hfllj)x, bs 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 resistan0m cpbeib-q: (ce, the battery is ideal, and all wi0ib:q pmceb -(res 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 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 lig/ 5yh;j yo4mvklojmc ;u;f/8ihtbulbs 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 labeledo ;hcy5 fjl8y/jik;m/4m u; ov 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 anb8,5eo a4wty;pz q*l t ideal battery. If bulb #2 were removed leaving an opao4z elq*;,t8wbp 5t yen 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)gy2 bi3;sn, bsf0b bj, which one of the bulbs will not light? ybbsi)0bgsbn ;j32f,

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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, u3 cfl.i3w8tnthe ammeter reading is initially I. The switch in the circuit then is closed. Consequently.338w cilft nu:

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 circuiwr8mf kvbguby*k.o8.:9 w t 8wt shown, the four light 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 light bulbs will be dimmer after the swify. 8orwwu:btwmk 8 .*8kvb9gtch 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 (w76s d.5.ukbk cwac 7e0nusf lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of the bulbs’fka5ekuuws w. (7s0d6c7ncb . 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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