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 ar q2ld:wg0y +r (mgpks/e connected in the electrical circuit shown in the accompanying d+( p2lqks/mg gw: 0yrfigure. 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 axj*+1* kazbiconnected in the electrical circuit shown in the acco*1zj+ ixak *bampanying 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 elewcc6-j wc5zr f(aa;cq .u-rt 4ctrical circuit shown in the accompa( rcurfz6w;c5a qc -t aw.4-cjnying 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, gxuzga kdv*6y951qq;c,w qx ;L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is t59vkx;6; 1q qw,ugczqxg* yda rue?

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, /;qx8h9jgs;vgf v*i twith a resistance of 10 ohms, are connected in a simple electrical circuit wv;t gj/vg;hfs *8ix9qith 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, nvz s,t qo,*t4ch- 9*1yqaaml.uz.fi are connected in a y.mu tola.v ahn s i*-cz41q9f z*q,t,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 four i1 jfq yg+tx12edentical resistance light 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 theejf x1q+gy12 t 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 wj)w,o(vtqy(se y4)u sire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all i yjev q(w)oy,(s4t)us dentical) 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 shor p j033vrmn*7tpwm+ziting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brigpn j*pvw 3+t3r0imm7z hter? 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 aijiya )rqe+ .v zev/eyg5-a+ 9re identical. When the switch in the circuit is closed illumingq/+ve- )avr ieij y yzae+95.ating 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 bulbs are connected into a circuit as shown.oj/pn9. htbe)v1 y6 lg All wires pen.o/ h 6tlbj1 vgy)9are 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 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 swgu)94v or1p8; iwdcqhown, 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; )wur8dc19o4gwqi pv 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 lightbulbs have identical resist1sltxry)u2c r;v:z9c .qu-kh ance,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed1-x : hzruk2y)9 c.;ucqtsvrl, 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 hrg(*ah 5cp op64;z)cx pda*hd nr 5*cias 4 identical light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across bothdi rnpcrg pc aohd*54xc* hp;a*)6(z5 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 diagr,;4eof 9pg l nmfn,bk6am, which one of the bulbs will not light? 6nenp o;,kfg9lb,m 4 f

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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 initial1d ky6h,1eede ly I. The switch in the circuk he,61e d1dyeit 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 identical resistav 6 ui(9yuew)lub(ppkv 8s :;wnce, 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 switch is uuwps:69y(uvelk (b;vpw ) 8i 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 thepe+la wb:b(o,e0jm0t same resistance. The battery and wires have no resistance. aee0tj(:op wm ,+bbl 0What 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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