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

1#

94.28: Four identical li z6ho*rjei9a +ghtbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasa 9+ozh6 er*ijing 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 conneo6 2yckz(s1kmcted in the electrical circuit shown in the accompanying diagcy2 (s1kk moz6ram. 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, ajowp/ to;ad8 e; v.m,0s yf/xend N are connected in the electrical circuit shown in,.t0de;wmo y8;x vap /efos /j the accompanying 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 lig: dsi)rs-ebm -htbulbs K, L, M, and N are connected in the electrical circuit shown in the accompsbd-) mer- is:anying figure. Bulb 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 light bulbs each, with a ce6+kk/2 no dqresistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt batterkokq n/2+ c6dey 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, witkx rh0u+y )rcn uo g.(eb()4pnlp*o l(1qqh 4gh a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and0) crepu+ 1(o4gllqguhp ( x*kh.4rqobynn)( 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 d1d cgy;lg;mp3l 7e 8o5i;igc 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 circp15;d m;oicldi 7gyelg;g8 c3uit 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,r3wj3vvd b5 2asy z7 l(5hdo,d a shorting wire 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 ids2v3 drzd5v5 (jbda3h7 woy,l entical) 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) fns+ox id+3s bv3s(a8 connects the points labeled A and B, which of the numbered lightbulbs becoa338s o nsxbdfs vi(++me 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)n gao*x7j 0tb lightbulbs are identical. When the switch in the circuit is n)x 7gtbao0 *jclosed 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 are connected into a circuit as showy ss9kr j.kj.9n. All wires are ideal with no resistance, and t9js ykj..kr9s he 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 shown, the three g;u kvu9el y*6light bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choic9;u6g* ve kyules correctly 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 iwz0wpuk n6rn q*2;3nfdentical 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 twk2wq 6zf 3 ;u*nnn0prhe 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 bulbs connected to an ideal bat vxzy5(sy77 +a dwwe,utery. If bulb #2 wwy7y(,7z ud5wvesxa+ ere 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 following circuit diagram, which one of the bulbsndksud kuowrl.:2/1+5m ewt: will not light? .o dm1k :r:ue wnsl/+tdku52w

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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 s1h svzf;pcx(w/7fvkpy w/)m*hown, the ammeter reading is initially I. The switch in the circuit y*;cmh) fwxpp/k( 7 vfvz/s1 wthen 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, tzom: .0(gd5ebop m -fche four light bulbs have identical resistance, all wires have zero resistance, and the battery is assumed to be ideal with emf ξ . When the switcoz0(-c pegomf 5:db.m h, 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 requr( u.e v1 o,gtc7q,bsistance. The battery and wires have no resistance. What isurc,,7(1 . uveqoqtbg 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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