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

1#

94.28: Four identical lightbulbs Kdw 2:l(cmanv8 8h+dgm, L, M, and N are connected in the electrical circuit shown in the accompav8g+28d hcd malmnw(: nying 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 lightbulkz ,/* r ytqa87hv-qkcbs K, L, M, and N are connected in the electrical circuit shownqcv7-*rt h8a ,k/qkyz in the accompanying 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 electrx f*4rv3x3ebkw ,cof. ical circuit shown in the accompanying figure. Bulb M burns out. Which of the following statements is xfr,we4bf *k x3.3c ovtrue?

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 elechrgi t-cz7.,bib t5,ltrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is true?.lg 5z ,t b7bi,i-cthr

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 bul;lq o5g,9fz2b4ad8qdbmu - l s )ht2fjbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and fbd4zj ug9)t5d-o ,8q;lmf2lhs a2bq 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 ea mmo):c 5(hvicch, with a resistance of 10 ohms, are connected in a simple electrical circuit c)o mv c(:hmi5with 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 amme4*hyx o1vlg/y)1l fz uter 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 electrical circuit at that pointzyh vg)/ yxufl11lo*4. 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 resist:xqgb/+ 6on3j0 g l6zopv8wug ance is added to the circuit between points A and B. When this shorting wire is added, 08bx66ggvuw g lp :z3joq+o n/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, when a shorting wire (no resistance) connect e-ssfvrv89 t)sdvk,6kfg3v5s the points labeled A and B, whirvg)f3ds e5,vk8t vfsvs 9-k6ch 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 as shown. All lightbulbs are identical. When thesra b x-wc 0vmlyu*y,0g*00 ve switch in the circuit is closed illuminmy- v a0*0rue0bl ywsc,*x gv0ating 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 ligaku cr/h0(:vz8v6jiw o7* e nb:xxp;jht bulbs are connected into a circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . Whenj r7 :upv *:e/jcno0x8vwakhbx( ;iz6 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 shown, the three light bulbs have identical res9in mn +hzzh :wn3hf5)istance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light bulbs that either becomwhzh5m 3: nnhfzi)+ n9e 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 sho :1wtel wwx51hi zz.x8hdy4v /wn, the four lightbulbs have identical 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 magnitude of the current at the point labeled P and to the magnitude of the potential difference fromi:hedxwyt5 w /zvxz4 1l8h1.w 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 *p :gjq/c; pahy9rze9 has 4 identical light bulbs connected to an ideal battery. If bulb #2 were y9r gp9jz;*qea/h:c premoved 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 of the bulbs will not lighm(n)t kd avbjarzx3 + g9w+i56t? at w9nrmgk)az +3d(6i5bx+j v

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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 f0ffur)muw;5 n* vo c*initially I. The switch in the circuit;c n**v5w)fffu0ur om 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 show8gsv c6*okysbv k446 pn, 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, a wire of zero resistance is added into the circuit. Which o 6*b sp kcvg4s4v8oky6f 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 rp nz/32uy eox,esistance. The battery and wires have no resistance. What is the properxoun,2p/3z ye 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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