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 tvg.qpp1ql /g3he electrical circuit shown in the accompanying figure. In order of decreasing brightness (sq1p/.vq l 3gpgtarting 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 electricalc,( u q*dub73ht)bdxfppi3y * hpbup 7()* i cbq3fy*3xd tu,dcircuit shown 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 elec6 nabr 6f9wghyv x-/3wtrical circuit shown in the accompanying figure. Bulb M b66w fya3/gvr9b w hnx-urns 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, vcnxa9+gkeki r88 ce4jvm*;k/-(kc pand N are connected in the electrical circuit shown in the accompanying figure. Bulb Kc 9je/;kce(nxk v8gcivp ak*-84+ krm 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;zgqgjz/7n9(d 3b ax7 kd wfvl0jk:b9 , with a resistance of 10 ohms, are connected in a simple electricalng db(0z9lkb97kqjz g a/; x:vd37fwj 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 resistance of 10 ohm0 yl(kf,m+e u*.vjsicjtp9u5s, are connected in a simple electrical circuit with a switch and a 10 yjl ,j5su+utmfik*e 9(v0pc.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 jwov 0uwtv0 (qb068ypresistance and four identical resistance light bulbs which are initially illuminated. A o ypwvt860jvub0 (0 qwperson 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 shodm 0; ao.:fxi +hxtt.zlrj,s -rting wire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out.-sh :aij+r.0d., xfo xtm;z tl 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) con- //ueqjvj jpi4+q ;au4rjf (gnects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all f+/4pu ug rf/a4e-; j qivqjjj(our 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 identical. Whsx) tq(drzh) g8muiyvw /2p4)en the switch in the circuit is closed illuminating bulb #4, which other bu r /4w)m8ztu2iq)sv xyhd)( pglb(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 are0emzr2e2g mdz y 8e,d0 connected into a circuit as shown. All wires are ideal with no resistance, andz0e0 md,ez2y rg8d me2 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 dcj4/j0*g3hn; c smzv6k4he;vtph jry ro.4 *, the three light bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the followi;/ ck*hhg 4dv tm.4hry4 sv0 3jnzc6roj*jp; eng choices 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 idgf5kb1w t,-yf entical 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 the current at the point labeled P and to the magnitude of the potential difference from Wto X?tb1f5-wk y ,fg

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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 lighn wgf;x h 3zr.z8*rn4cwi1zk ;t bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulb 1nzzc;h *zfx8.4 r wgn3;riwk#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 bulbs will not li89.6gfqddxcce c ;jv2 ght? fc ;6 d.cdveq9gx2c8j

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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. The switch7io(;+ h 3fc)f lshqtd in the circuit()hh3 tlcd of7;fq+ is 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 ; z:qxxcq4c 2dshown, the four light bulbs have identical resistance, all wires have zero resistance, and the battery is assumed to be ideal with emf ξ . When x x2d4q zc;q:cthe 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 )obv7 ts+p9ejkg.so5have the same resistance. The battery and wires have no resistance. Whak+sp57jgbov. 9oste) t 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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