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1#

94.28: Four identical lightbulbs K, L, ewhns ;)0 0frpaw5x/ yM, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (sta)sep/w wxn0y05f ahr;rting 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 connec g ;n6d-fualp;n2b+o ited in the electrical circuit shown in the accomplnopf;2 d-g;+ui 6b ananying 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 electrical b2 ydw(.mf ,vkg0xpe 0circuit sxgy mkw(. evdf,pb 002hown 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 identicalr4rf*(c qqer rpgo ;dca916f ) lightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns ou 9rq )cracp6r;r4q(1 fegofd *t. 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 resistancem gbxvc8 olp0kb,6y /7*yys1,e t;z vu of 10 ohms, are connects6pk7/o 0u*x8vetbbygv;y ,1ly z cm, ed 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 8t hp+h kh.jv;each, with a resistance of 10 ohms, are connec. jhvth+kh;p8ted in a simple 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 qeq1 8/w;s4 pxsdvyz4 an ideal ammeter with zero resistance and four identical resistance light bulbs which are initially illumi4p;ws 1xzsvq8e4yq/d nated. 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 circuij mo;,dwtt8e9 t shown, a shorting 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 brightee;9t , od8mtjwn?

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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, n) 4 tp-c;3qmmj;nthfwhen a shorting wire (no resistance) connects the ptm) ;mpnfhqj ;nt -4c3oints labeled A and B, which of the numbered lightbulbs become 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 lighqei3w) 02ieeko v1zw)/lu:kb tbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which o/e :oivu0eqz3k ))lwb kw21i ether 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 aq8r rv-d: lm0zre 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 cirqv:-l0d m8 rzrcuit 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 slvgh7,oe t im4900e fthown, the 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 become dimmer or go out compllo047gt mhtfe9e0i ,vetely 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 ligsh xzhk6aa1(f1*n 6ja ,ok5t bhtbulbs 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 correctly describes what happens to the magnitude of t( t6 *z6xfh1a5 h ank1,skbaojhe 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 an -0zvq4 y-2y-q6x4 p*runzu/ruuzvf videal battery. If bulb #2 were removed leaving an open circuit there, what happensf/ypq-vv -xzr 42 nuuz4z6 v-y uu*0rq 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 bulbs will not light? 3 ehn:f k1et cvtoxj7;btzn:e35 ds2:/:jpjwnpj:tfxo 7:t w:/jk ;5s3 eezbd32cnvhet1j:

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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 sh kzmv xh1gc4g*481wt jxx4p*s own, the ammeter reading is initially I. The switch in the circuit then is closmj 8 htw4*g4czxpx gxv *1s41ked. 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 four lxcff4rn7g -qw j*7fq/m:a td9ight 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 the circuit. Which of the lightdt / -x :c7*ffafwmqgq7j94r n 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, albl1- p;:q zjt4vubnkg4/-fdj t+vr 9tl three lightbulbs have the same resistance. The battery and wirest :g z+1; urbbjdvjnk/tfl4q-t- 9p4v have no resistance. 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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