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

1#

94.28: Four identical lightbulbs Kl ms9 vx-*8uoo, L, M, and N are connected in the electrical cs8mx lv9 u-oo*ircuit shown in the accompanying 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, co9mb ,:p, yz(og)5tri mn,dwav0x0iand N are connected in the electrical circuit shown in the acctm)0o 9i:wgb ncz, ,orp m0vda,( yix5ompanying 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 / 4 oaeoiebob)e, blq9;n 8si/connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the a9 b)liq e4,/eb/ebno 8oois;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 electricaveh3iiwccen 65 e;/ avo4a)c;p tpd44l circuit shown in the accompanying figure. Bulb K burns out. Which of4pocid)i4epvn4;6 htc/ ;ae5 3wvc a e 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 cowbrlsa l9v0 e5o /;d:cnnected in a simple electrical circuit with a switch and a 10 volt battery as shown in th:l 5;ewacsd orbv0 9/le 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 bu fizmen h*. 0iz sx8k+b7 is+evwbi+0bk) 7/fwlbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 v8szwsb07 wmenf ki*/fkh xibb0) i+.z+i 7+e 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 .tqtp(xhilxazf+ q12(win1n q93 b p9 ideal ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person remqt 1w. q t+anp (3x21zpxh9f9i(lqb nioves 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 nni l,;rq9ei7mm )zvjpc z t, ldu6q*)4egligible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which,, 9tzlrvql 4 7uqmp; jdiz)) mecn*6i 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 wiupy+)eejb 0)j re (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical )p) y 0ejje+buand 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 identica n5 8ff(+j27ia:qjinz3k 4jdzw mhg5nl. When the switch in the circuit is closed illuminating bulb #4, which othh (z3f n7ja2 n+mdq5g:8nijf k5z4wijer 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 a2amwp2jl1sn7u+ +f ucre 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 from bulb #5, which of the other bucpu2nj w+ms 2 ul1+af7lbs 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 k 2+gd1 ln6bylshown, 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 become dimmer or go out completely when the switch,dlg+n2 k61ybl 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 resi3jn pm9c v.el bqpb703stance,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, which one of the following bej3q.pv 3cl 0p n79bmchoices 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 shf2j;b z 5yi 6 psqbti61/xyj2aown has 4 identical light bulbs connected to an ideal battery. If bulb #2 were rej2 jxi21b;/tsy5 iz66pfy aqbmoved leaving an open 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 circuit diagram, which one t y:qm .(*yol:loz;jiof the bulbs will not light? ; :lj m*to zyl:o(.qyi

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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 0cm)-g ;yvj yjinitially I. The switch in the cirm) yy0gj-v j;ccuit 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, (k 5z.qjxq3vo z3my/kthe four light bulbs have identical resistance, all wires have zero r3z q myj53q/zvk.kxo (esistance, 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 circuit shown, all three lightbulbs have the same resistance. Thcumky3mp7n4 /dz 4t4 ue battery and wires have no resistance. What is the proper ranking ou4mu7yz4nmk p/dt43c f 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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