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 connected in the electrical :o: aj-(w(q omkvcf7j circuit shown in the accompanying figure. In order of decreasing brightness (starting with jj-m c 7v:q((of:a kwothe 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 light aa 1go elpbwe 7yk4 x;ub0zs:b/iz,.3bulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying dzx:3 .lpe bbbi7/a; oy04 zg a,1ukwseiagram. 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 8 v, pglt)fif8the electrical circuit shown in the accompanying figure. Bulb M burns out. Which off pl,igt8v8) f 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 lightb2ad2q5edgy.u ulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bu qa.dge du225ylb K burns 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 lx4vrj/o r .jw*ight bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch 4orvrj. *j/wx 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,* dkyd:p) mb6a are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagram belowkym*p: 6 dabd).
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 xxbd33tdzt8+0p459m cah it q four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket the 9xp4bdidzc 0 tat83x5ht3 q+mreby 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 rerr7vplm5he ybf+h4 (m0j7u4 0nw wq t0sistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulf+4 t w47(j rynhbm u vlp0ehmq00wr57bs (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 circuo(uymi-q,-2e w ms oy+it shown, when a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical and have resisq uwy(m,e omo-ys-+2itance 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 /,8i c nux4y. 9flfrov:+k nvvas shown. All lightbulbs are identical. When the switch in the v,r4. :f vunvl/9ncoy8+ifkxcircuit 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 bulbs s /vaq:**b ym odk*bv3 are connected into a circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch */kdsqybv b3o*mva*: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 have identic;sq9je h*hdj),+ip/ a pg5vhual resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the lighda;5evg9+qi/puh pjs ,jh* h )t 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 identicalx4u+jrzk;8 0 vv)u:p es3dz aw resistance,the 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 zk0e8zd :u+ pw3r)a4vjuv x s;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 iqqqrr-wqp29 1b5c) xs ;t 8xkxdentical light bulbs connected to an ideal battery. 58k2 1psq rb9xxt -wc);r qqxqIf bulb #2 were removed 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 followis;t v * x)ubxicxowqg57y 4d:5jnn92yng circuit diagram, which one of the bulbs will not light? yoj 5b )x2igt4x* 5cnv:; nyx7d9swuq

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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 circuipw+ad zw(63dm t shown, the ammeter reading is initially I. The switch in the az6dwwp+dm (3 circuit 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 resf- nvhiw ,c49f(g gmo9istance, all wires have zero resistance, and the battery is assumed to be ideal with emf ξ . When the switch, S, in the circuitngg,o(f4vcmif99 wh - 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. Th,a+.b*y uin b*hj:rkve batte*rbuh iv.nk+, bay* j:ry and wires have no resistance. 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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