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

1#

94.28: Four identical lightbulbs K, d j/qcqb3w h;j0 bh;w(L, M, and N are connected in the electrical circuit shown in the accompanyinq3db(jw w /0; jbhh;cqg 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 con8 *jhy5r ejh/snected in the electrical circuit shown in the accompanying diagram. Rank r85s/hj j* hyethe 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 o;wf9jveluo03 7ma4-xl5amlrfa 1 k-N are connected in the electrical circuit shown in the ac1wlk0ef5al 9a 4uv-mf a-;jo 3rml xo7companying 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 elecem;;u-yr3oh-n. x d5vo0uy mwtrical circuit shown in the accompanying figure. Bulb K v-;0;-x oum 3yu5 hermyw nd.oburns 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 ohms, are con dsg//v3))zn4,zci ijfhfi( ikw,vy(nected in a simple electrical circuit with a switch and a 10 volwg ii dv3)nz,ciz /yvf,)(j (fi4s /kht 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 res8lf1 +y ppjuv;yiir9.istance of 10 ohms, are connected in a simple electrical circuit with a sw 8;p9fyv1prliu.i j+ yitch 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 idealdy-zba/f j1jg +an* o;x5xm1d ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking the elecymdd1afn *a5zxoj;j+b/-1gx trical 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 resista)0wk)f m3ivw-0nmhe q nce is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all idenvwmh3) )w fken0q-mi0tical) 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) connects thedua4p 2-ke/gre0) b4ozev g,q points labeled A anegbuv4eo)/2aekz g-q0 , pr4dd B, which of the numbered 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 connected aw : 5r8ge39wy* g -z(mup.wnxhj(jle js shown. All lightbulbs are identical. When the switch in w(njx.:(hjzm 9g 8p*gu y5el -w3jwerthe circuit is closed illuminating bulb #4, which 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 itu*vdcxxjuk; y0-h 9tb (tu5gingn).g)g4 2 bulbs are connected 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 ukv-.tt4 5j0nh)x*ggcn(xtgu u 2d ;yibi) g9from 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 have identical resistancekwqfds/ yv7 ck8)x/ +f, the battery is ideal, and all wires have no resistance. Which one of the followd8kqs y)fcxvk+/w/f7ing 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 lightbugj j9xrx ;b1059c wd- n2ihxwdlbs have identical resistance,the battery is ideal and all wires have no resistance. A 1w xdd-j05ihxg2rx9cb9w nj;fter 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 light bulbs connected to an ideal batt4m-cqh2nd 3u )g9eqvfery. If bulb #2 were removed leaving an open circuit there, what happens to the qmn)vgf9 342eq-dhc u 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 circ( appw9npfv96 uit diagram, which one of the bulbs will not light? 6ap9v 9pnp f(w

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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 eq,f40vjioz* shown, the ammeter reading is initially I. The switch in the circuit then is closed. Consequent*,oqe0i z4jfv ly:

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 seop3fi, 0nbc+ ;pg f :g3aslw kx,x:2hhown, 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, 3+,;s:bpo3gagx0 n c2 ,fpeflxw ki h: 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 lightbulbs have the same respwy eyvmer*,(x gmamv 3 u s45c(k/+l/istance. The battery and wires have no resistance. What is the proper ranking of the bulbs’ brightnesawvum /sp3y *ey,mvlr5+ (ecm( xk4/gs?

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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