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 electri -grjai(kbhsmt2v04 1cal circ(s 2ag-vk1r 0ijmth4 buit 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, and N are connected in the electricaztjrjf ,x)go-fs .sy*) x rx(35g blb9l circuit shojjbf )3l*yxx .5 ,ss( g)rxorg9-fb tzwn 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 elechy+ssz-u yw,qzc19(yr: l )adtrical cqdrla9u-yzcwss(1 ) ,y: zhy+ircuit shown in 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 lightbulbs K, L, M, and N aro2u.h(o.jtol n0vtk + e connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is true?j+ouko2t.th .(0ol nv

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 :pe b5+hny7i nconnected in a simple electrical circuit with a switch and a 10 v5ny eipnb+: 7holt 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;0v8mxn9sceuqr54h y 3o r a7i, are connected in a s 8neqsc3ai04voxumy rh;59 7r imple electrical circuit with 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 ammeter witw(-w5 c9rvjsm yfk241.awxzx h zero resistance and four identical resistance light bulbs which are initiw-yzwsw cx(1v2mf k x4r5j9.aally 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 a7lt6) a.6yzl re vv/ushown, a shorting wire of negligible resistance is added to the circuit balv7v)z6lt/eur.ya6 etween points A and B. When this shorting wire 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 shownh0 h7d) m0tbdfy) bdu6, 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 if6tb y)b70)d0d huh dmdentical 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 identica1 4pfokgq4ezog/.z 4rl. When the switch in the circuit is closed illuminatg oq4 /44ze1f.ozr gkping 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 identicaypg1/n;mli (de-n 1aq:qr)zng . -uhol light bulbs are 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:/opnq )r;-n 1ge g-d(i y.z hlaq1umn #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 identi+3y8eudz m:weqv7jt/eb6*ib cal 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, S, in the circuit is cey izv3qde6*7 jmtu 8+w/eb:b losed?

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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,the rwg )h..tes2*lm(r t sbattery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, which one of the following choices correctly des.gl *s (2rt)w hmtes.rcribes 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 shown has 4 identical liglz3t8jyrc l z j05-q* /3uzpuuht bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulb #1 and fro-zrj qlz5 p33*l 0u/yjtuuc 8zm 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; k*- mi..rph vz4ol1kf ba0jk, which one of the bulbs will not light? z ;m j.kpv-1o. b*hk4a0 frkli

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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 initez le ; pq3-uq9a+qvx;gl1pc+ially I. The switch in the circuit the-zp+qa 3+c; 1gqeqepx9 lu lv;n 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 show70jjnn snhkj9,s wtqr -4kp/ 3n, 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 the43 rj s njhwnp9tk-/0k7,nqjs 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 threp(h,97z leyj nfx(xr 8u/s3 gte lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of the bulbs’ brip(l8serhxjxt g 7/f9z yun3 ,(ghtness?

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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