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 co*u d jt .48ontm*te8junnected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting wit8o4tjt* munj. 8 teud*h 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 llsmt9- gq;k0ma ,k m0wightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank th ;wt sgma90lq kk-,mm0e 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 2zl0pu :u:zypt qzo;0in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the following staq:op 02zyut p:0zzu ;ltements 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 th tg;1ydfx-380i: yom.amvz.b ocx 1connected in the electrical circuit shown in the accompanying figure. Bulb K burns out.b g 3 mo1ot;azx fhy:1 8xic-dmt.0.vy 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 as8yf lnj4l(,m:: niveach, with a resistance of 10 ohms, are connecte:4m 8 ljy,:ainsn(vlfd in a simple electrical circuit with a switch 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 resis vh m3yg/t/nz ock:((otance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt ba3ygcm (/ o(v /nkh:oztttery 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 resistance and hj2udij 9gp1 ,1ggte ayx6g1f ;l3 qv0four identical resistance light bulbs which are initially illuminated. A per1f6 u910htg,pgid gjy e23 gvjx;aq1 lson 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 shown, a st:+ u/ b 7sksb/-ikj+ a56w kdabh5hoshorting 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 identical) in the circuit briw 5u5/h: o7ibbs+jt+ kk/s-d as6abhkghten?

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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 shown6:a1rl5f k -1qrhclpw, 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 resiahcqk1f :r- llr65wp1stance 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. Whe(d luk0x fd5a:n the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become brighte fdluadk 5:(0xr?

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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 connect8 r cge/wl6s l3um,0mkr-m g8wed into a circuit as shown. All wires a k0w-m6ggru r, 8/scelwmm l83re 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 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 resistance, :)4q g:h nk u:um9wvnuthe 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 complehqu: w)4 :g v:9ukunmntely 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 ligh4/uf;wr +xgao tbulbs 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 corrax u4o/rgf w;+ectly 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 shown has 4 identical light bulbs connected t m2)r0bi bbkn8o an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens8ibb0k m2b)n r 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 bulbk/ d(d.x:xzb*pr7bgus will not light? dgzp7. d( ubk*xx:/r b

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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 a88jqnmmv 2j p(mmeter reading is initially I. The switch in th8( vj8nmpj qm2e 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 fouk9qrsp49-z muh:c)z q r 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 rmkp)9s4-qh9c z:zq u 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 c32dxb kl3z 5rlightbulbs have the same resistance. The battery and wires have no rkcdlx 3b5rz32 esistance. 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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