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1#

94.28: Four identical lightbulbs K, L, M, and N are connected in the electrica 7xm,+fquf3pd z vy-t*l circuit shown in the accompanying figure. In order of decreasing brivq7udf+zfm-t3*, py xghtness (starting 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 arhty3vs+loq3y1 fzb -+e connected in the electrical circuit shown in the accompanying dbq13 3zoyhflv- +sy+ tiagram. 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 lihnt.f60) rwx6xqn m2kghtbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burnshkfx0t6m)xw6 n . rn2q 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 a8 dv vjk(rjo9 21)wxuure connected in the electrical circuit shown in the accompanying figure. rd xw)u8j ku2j9v(o1 vBulb 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 ovf5-u5cb +sys mdt0 fj)mkp.b/j7 t+lt+ t yl0f 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the disctufp5 5m l.y +lm+)-+s/fttbj7jk tb d0yv0agram 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 ohms, are conni r. n*s1t3hahected in a simple electrical circuit with a switch and a s th3 nha.*1ir10 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 ai0 u(gf hs/)g-qk+6eb(9 1dqlscood en ideal ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person re(/0dko(olb1d q ghgiq) +6ss cee -9ufmoves 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 shorting wire of negligible k uu*mhqj jwfe86y06 2resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all idej8mywe02jf66*kh uu qntical) 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) je73 uctmqi 7usm:/f; connects the points labeled A and B, which of the numbered lightbulbsuf7em; mu 3:7i q/jtcs 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 lightbulbs are identc3ij*lv fgxgm0qhb46lm 5dr 4g h+9c .ical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become brighf4h+ggq9hl0d cl.mb * 45vm ix36cgrj ter?

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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 sl nd*ahtw1t-9;v-hu o/by7 f a circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S in the circuit is closed9h -s -h;yovttbfn ulda17*/w , 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 shb+yj /wv ,.wt4rz 5mfeown, 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 completely when the switch, S, in the cirw y/.,fbjer4+t mz5vwcuit 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 havevyrg3zoo 8 1yquq8 ;5n 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 the current at the point labeled P1qzq;o38 onguy5y8v r 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 /282 fqf+5wyjkro(w6xa5cwz enpd*w an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulb #1 and from +cj/d*zk6wr n(e qwf a528opw5xw 2fyQ 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 wisoe u 1rssc+*/ll not light? ur* 1e +ssco/s

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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 initiallyq5ukpt ;o0cewt 1baa1:y9rb/ I. The switch in the circuit then qb10ry/pb e;o 1aw:ut9kac5tis 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 four light bulbs have identical resistance, *bx5:p x1gfckall 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 light bulbs will be dimmer after k5xc:1bpxg* f 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 the sxh4ha k 9g)1eqame resistance. The batteghqhxe) 9ka 41ry and wires 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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