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

1#

94.28: Four identicanlg tr(4ii1wfw,1 el8 l lightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing bl1g4 iw ir(n,1ftl e8wrightness (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 identicalzta7;.vk., iq uuytm 0 lightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank thuamky ..q7,0vti u t;ze 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 conn5by( gphzvj06 5p3zc kected in the electrical circuit shh vc6 5j0y5z3 p(bpkzgown 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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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 the elect ysls4iu1k- .qa. xk(vbq7 b)vrical circuit shown in the accompanying figure. Bulb K burns out. Which of the foll4vb1svqs7x(.ka . uyl -ikqb )owing 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, wisxs /bxpq x0:,jr zjmf5s :z54th a resistance of 10 ohms, are connectexxmszx: f0s5:j bzpr/5s j 4,qd 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,fabm0+f8faz u gjw;6 *j:z)) l c7gdpk are connected in a simple electrical circuit with a switch and a 10 volt babpazgu;+6gfd7 0wkl m:jf)) 8 fcaj*zttery 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 abigj /(z; ; 2vfal83hknlv 8vhmmeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from i j(vl2ag f ;zb38/;vh8lhvknits 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 resistance is arwzri 9pw uz+y 7+q2ylk.0 bc 4xv8ma7dded to the circuit between points A and B. When this sho irxw9vbk++z077u m4 zya c. rw8y2qlprting 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 shortipnz3 :b 3fn4 mi2ycxv6ng wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs mf6x3znin3p:yb2c4 v 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 lightbup dcf h .eg.:znt(h.v*lbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also becomvd .n*p :zctegh .f(.he 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 y 10ncfgbx(g3circuit as shown. All wires are ideal with no resistance, and the ideal battery hagf(0cbxy1 ng3s 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 light bulbs hap.qpg2 7zifgpbv.r37g49 j:wob g yt/ ve identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light bulbs that ei74 :gb gwt/9p3b qg.j2gzp yf. r7ipvother 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 light3c56k: qi:olugbzfrp :2 ;3trn7s npgbulbs have identical resistance,the battery is ideal and all wires have no resistasu2tqk;pn7 fb5pzg:ir3orc:l n63 : gnce. 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 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 linwexzq 167w 2:3nrg,gdpckn b8 4) wqeght bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulb n nwec) :67dg23wp4rbx8qq zk1 n,egw#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 thze 8a8:y/ iezze bulbs will not light? i/8 ezz: azy8e

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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 reading is initially I.35giya8zz6408ud fj cny/mdl The switch in the circuit then is closed. Consequently: 8njgl0dam 4 3 /yc8yi uzz65df

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 ident)oylo3cj:2;pifl0 he ical 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 theec0o ;:)32lijho ylp f 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 tr d1a u+h g99f73vhwnqhree lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper rankin7 vuahqrh 19wdn9 f3+gg 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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