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,y:b wzvfe (j7t* axv75 M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the brightest), the bulbs are:w*e(:7vj 5x fvzybta7

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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,0l07t+ut-r3c cdo ya l M, and N are connected in the electrical circuit shown in th07u coryd-+l0l ttca3e 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 e8v1 q*yyrnhy7qc mu i/z(;a+k lectrical circuit shown in the accompanying figure. Bulb M burns out. Which of the follo;+ mqy7yn(/yvkcrzi *8auh1q wing 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 lvh4y 9 ru0+gpge+9( bws o6avsightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Whicu9(geagvrwh 4sys90 +p bo6v +h 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 resistance of 10 ohms, ay/(,.nar,9tq- ksx /r99ivn yy dxui rre connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagram bedn(v/a r,q9kyy ,niy9rxur .9s-x/ tilow.
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 ab- rn66of9(nt a0 zqa10 ohms, are connected in a simple electrical circuit with a switch and a 1b-9a6 an r(n0 zf6otqa0 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 shapsy *wvd:yjs4q e1o. x6g9y.own has an ideal ammeter 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 point. Which statement is true of the circuit after removing tys g:yy q64*v1osd.exp j.w9ahe 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 negligibls7 ;k1imbb yn9icqn,; e resistance is added to the circuit between points A and B. When this shorting wire is added, bulb y;7;mbqkibn1 n ,s9ic#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) ccc1i 0i2i vhntu-r4/q n0f tk2onnects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume icn2v 0i2i0/h kntcfu1rtq-4 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 czmk x(om9xf )of5wl*1f:e( ezonnected as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, 15xfoz ef9x:ef zklm()*( owmwhich 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 o7nyh2.3y r+*knn:b8viaq fz x53ywf 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 #5, which of thex+8.yk2 3r:f ywqh 5ban z3nyf7*voin 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 t1c/hr )aprby6)sifdea+a* 7h hree light bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identiaa6sh i/ y)e*7rrf +bh 1)capdfies 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 lightbulbsl1u m;kax:md0h) ,w)6vwky b p62 ccwq 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 f 0 lk,ac v mc2:6 yd)q6pmu)x;b1wwkhwollowing choices correctly 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 2mj ki8/)cijg 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 from Q to X? k)2mi/ jicgj8

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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 light?tfxwy;a t2 7.9di,m gq ty;adwgmfi .2 9,x7tq

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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 initiall 6-2qivi bykvff.6j/ly I. The switch in the circuit then is closed. Conseq.i 6ifv-2 /v6fbk lyjquently:

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 t7jn k ,*mmi(6wmwylti*2r( dlight bulbs have identical resistance, all wires have zero resistance, and the battery is assumed to be ideal with emf ξ di2mlwnwj( m*tt*67,r(i kmy. When the switch, 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 lightbjy6y -ez5uw4o ulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking w5 o uey-j4y6zof 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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