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1#

94.28: Four identical lightbulbs K, L, M, and N are connected in thejq *oje58)q6f l3 bvhm electrical circuit shown in th5qvh*)feo 3jblj 86q me accompanying figure. In order of decreasing brightness (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,b os; 02+lauaww)t;wx and N are connected in the electrical circuit shown in the accompanying diagram. Rank the current tb+02w);u tw;ws xoa lahrough 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, zb)dto)+u uevk4h v/5 L, M, and N are connected in the electrical circuit show /u)bk5+uotvve4dh) zn 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 the e ig.5g+u3 /rz oh +;uhxz1ieyclectrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is true? h. hoirg1iy++5gzuc/3uxe;z

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 1uofz5uw4(px-cr+axxti3r 6va)7s k7 f(k6h c 0 ohms, are connected in a simple electpr4kxx 3rafi st-a6o zkvux75c6w( )u7 fc(+hrical 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 ohms, are c4f- +b3xh d4;tkquavuciv+ 3eonnected in a simple electrical circuit wit+ ck4utf4+dbvhevaq ui-;33 xh 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 an ideal ammeter with zero resistance ano8p(m aeo.z0 ud four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its sozu(pe.ooam0 8cket 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 circuity jvfd0phffvz89 h89 9 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 bri98y0dpfv h89 v f9hzjfghten?

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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 (y l;hb5oqc1mo8 o ysb l/tt)/3no resistance) connects the points labeled A and B, which of the numbered lightsm oq)t53/yy1/tlohc bo bl;8 bulbs 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 d 63vkpuzqjjonz -87 ro.hq8w);eor c8qg(y /identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also behyr g 8;8zk q7dozj/pqe w-n)3 v6.(oq8jcu orcome 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 e, s7i1cnair- 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 closed, aside from bulb #5, which of the othe1s-e,r7i cn air 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 circuitw-wj 3o vm/o.p shown, the three light bulbs have identical resistance, the battery is ideal, and all wires havoompw3- /w v.je 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 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 li9b ed6h/+p,0myh zag7 ,laidl ghtbulbs 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 the 6gyhd,l7b+0 iadme 9/ha lz,p 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 lig0n0dm:l1 tyi 45t dhhzht bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage acrossy0n1mtt:d 50h4hid zl 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 bulby 1n5r 3p 30cxzpvysr4hkpx );s will not light? r 4vk351zpr syn;h )3 cy0pxpx

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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 i/ ibqmx nhltuz+d /s(e.)3n4ds initially I. The switch in the circuit t4tnel (un/ . /xzhbdi+s)qm3dhen 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 circuir7vce1g,+ xh kt shown, the four light 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 light bulbs will be dimmer after thegk +,7xvre 1ch 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 threez7yqdz(h gib,usx049 lightbulbs have the same resistance. The battery and widzg0q,s(97zi b xuh4yres 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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