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 consiir uin( /x4)nected in the electrical circuit shown in the ac(ii )i/sunr4x companying 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 connected in thp:0yjb ta:.gc 6ghxmlp0on9p 59y5sq e electrical circuit shown in the accompanyh:.:9 xypo agl6pn 5m5bcgj00q9 typsing 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, 5e8. arndk6bkrj ),sr L, M, and N are connected in the electrical circuit shown in the accompak b )rdsrerna.56,jk 8nying 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 conneg1i zob5go*r:u8sj n 8cted in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements i8*gjugi nz:o 5bor8 1ss 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. q raa)jkp*grfi z3dd5t e:8) connected in a simple electrical circuit with a switch and a 10 z kq:dr)) at *epg3a58if.r djvolt 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 i;mk voq/:4.ccaod9 g10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the di/oiq9 :;a.cmgdkovc4agram 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 x mesq8/q;ex1an ideal ammeter with zero resistance and four identical resistance light bulbs which are in8/exq1e ;smq xitially 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 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 r mw+uk(th6 m 4dbe;8zyesistance is added to the circuit between points A and B. When this shorting wire; (ek z64u8 whymdb+mt 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, wh4 zeyr8pn;lsm0 8h(y: qiza9yen a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs arlpseyi;809:zm zn aqyy(4hr 8e 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 the sgm14gqg2kjy. i jll .r-n)wj2cu(. 2pzsh te4 witch in the circuit is closed illuminating bulb #4, which other bulb(s) also become brightergl.1ymh(k2 gig2 2ep4rj q.jl jc .-nutswz)4?

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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 )ht4+r wzjnf 0circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S injhz4t+nrf0w ) 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 have identical r g.ooevf/ir n)+.lz/ges 0f r,esistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctlrv/oi+) 0. egff,ez. /ornslgy 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 lightbulbs have identical resistance,t5*+ fxsgbna qe(e 2p-zhe 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 magni5 e* xs(+g2p qnazbef-tude 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 buliv: lejg/c62 kv:;cc0y gtus:bs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happky gl u:s : ;i/g2etcvv6j:0ccens 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, .;qvk; 4smjqgms24psg xrr1ne /3(6b dthv h5which one of the bulbs will not light? r 5 ms ;3vg41 ; te(v/j2mhq.sqsh 6prngkd4bx

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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 initiallyf1ig yyk4 iw93 I. The switch in the circuit then is closed. Co3f9kyy1g4iw i nsequently:

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, t9.dweh4fat9r1nhvl w iciv8 ;.g ti 9gxlb7..he four light bulbs have identical resistance, all wires have zerolxc bd1h gg97n 49iia.efl.wvwt. ;hvrti 9.8 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 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 circui79ip j v0uj kx/xqwqy 3e6yo71t shown, all three lightbulbs have the same resistance. The battery and wires have no r0u 71q7ov3yxkjejw6xp/y iq9esistance. 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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