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 connected ek6bc55 d42mi 0yrbqs in the electrical circuit shown in the accompanyi qsby6 5 k2imdrbc54e0ng 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,2ub +a91 i6bb+gzi7xaspu co1 M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank th2zi9+i+buaxp 6a b11cs g7boue 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,1:p jf49osne3+x ahpgory h q0x 3no,- and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns ouq3 4:+rpxnapx o o n,sojyhh-3egf910t. 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 l+vr*pcq0h7- s jxh5iK, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements i-0*r cjxq5 7vl+psihhs 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 bf23ws8 r-o y.s lr/3pa)xbn8 um0zmpnat; :vresistance of 10 ohms, are connected in a simple electrical circuit with a switch an8b3an r-m 28psvb 0:ons my.pf3lux /); twrzad 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, are connehjpx x7*yajjl7m. )uv4n8g8ected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagrag8h)x 7 v78ajyn ljm.4puj*xem 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 iyhs.mu-(ut8btaawu* n* 4og3 deal ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 fuanms3.gh*w *(-a8 u byttou4 rom 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 negligible resistanxs*-w6d uy ttkw ab)gu8n. c1n hc-*j8ce is added to the can8k 8*-c*s cwutgwb-dt.u1j) xy6hn ircuit between 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 resistance) connectsqw cd(ngby e,xs(h8:; the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that ad ecq (n;s(,gb:xw8hy ll 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 identicaz jo-ha:qop );gk*o7 cl. When the switch in the circuit is closed illuminating bulb #4, which other bul;- a:ook jhpzc)qo*g 7b(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 8tdf-q1 efy l 0cl49oj -s6cueas shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch Stdo41ufq-60l8ef y ecc9 l sj- 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 havexhr56xwxa:; t6by 8 mw identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies they8a 6rbx;x:5x wm6htw 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 circuitlvnc0o- u9p: m 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, which0m:luv o cn-9p 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 identical light bulbs connected tbyfjt0a2+5c zktw y(tc-bh8hiun67 9 o an ideal battery. If bulb #2 were removed leaving an opejhw2u5c zb7 tt9n -yi6b+0( h cy8tkafn 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 ,4e j e,t9p0l)q zebhnepxvghn 2(g(l7 4ilo.circuit diagram, which one of the bulbs will not light? l.h4tpn eq e)gx ,(hj0bz 47ev,e gp9oil(2 nl

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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, thx gyosz5t18tq5hfq1 /e ammeter reading is initially I. The switch in the circuit then is closqxfo 1ttqy/s515gz 8hed. 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 foj8bd/5wcq5; w ,gu wvvur 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 d5u;q ,w g w/cvbj5wv8 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 lqx(er;6ev a -z/6cfdkightbulbs have the same resistance. The battery and wires have no resistancex6rq;(eevzfd - /ca k6. 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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