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 conj10zk nl 7ke7inected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (s7i1nezk j0lk7 tarting 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 electricabj+q8njf o ;j)l circuit shown in the ac;jfon8 b+j q)jcompanying 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 el*rs fum59j z7h3/q ukbectrical c zfk hb 75qur*3sjmu/9ircuit 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 are connected in tqd+d 8pt(dimzi //r 7jhe electrical circuit shown in the accompanyinmji8 iqdz+d7tr( pd//g 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 resistance of 10 oau+ tv,* vp9v eb:+jl7 hendc,m7dpo)hms, are connected in a simple electrical circuit with a switch and a 10 volt battery asp9,odcvtm*77)j,eb p aevv h d+ln+u : 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 bafdoo8+ ir)tz i8nl5upb:/i (ulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the dn()+rlad/ ito8 8o: uf5zipibiagram 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 shon7 54n .c;; ucfqtyevvwn has an ideal ammeter with zero resistance and four identical resiscq;vt n cyv7; 5uf.e4ntance 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 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 circuiro a u-bb,)w:z+qbg m,t shown, a shorting wire of negligible resistance is added to the circuit between points A and B. When this shorting wirorbzu: b,)a+bw gm, -qe 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 shown, when a md;6 -dpl32zkhy6lmz4 :0jarzun oi- shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs becomezyp6k0 r:z o-hl4 2zd-3d;nlma ium6j 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 idnjux lfb1 q6:-eev25hentical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become bri-ub5v :e 2enl 1xqh6fjghter?

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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 cn7hx tw k5wk/(ircuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the swhxnt wk5k/7(w itch 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, thjj4ha7v mpu r(/5a i5re three light bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light bulbs that either beco4/pa7jhj i rvu55ma( rme 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 hasp0ez1 o lf;x/ve 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 chop 1lze0f;s/x oices 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 connected to a ml2y6avqeb0z9amlb9m*2 x h7n ideal battery. If bulb #2 were reb7yvmhaxa22 lq9bm06e*lzm 9moved 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 circuiwm2 wj y-k;1 )tamhlh.t diagram, which one of the bulbs will not light? h jkya;.2h-m1twlmw)

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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 initially I. The78kge 7webq; sm 67+iuvnh1v m switch in the circuit then is closed. Consequently:1emvu;nv+g8q6ks m h777 bewi

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 light bulbs have identicb5*i++cls6p er,vgy(j en z)wal resistance, all wires have zero resistance, and the battery is assume(e er l*)s,56 vbynjc gw+i+zpd 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 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 thelkbp ;y o3z(.u1 go2wn7.pkmx same resistance. The battery and wires have no resistance. Wo(woymu. pbnk2 .k1;x g7z pl3hat 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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