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1#

94.28: Four identical lightbulbs K, L, M, and N are connected in m g;i34r2 bl6ra*mfs athe electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the brig*s4ri mml;aa26rbg3f htest), 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 lighsdyx54ssg vz2(9oen :tbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanyi4s szsy :o2(ngdxv95eng 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 electricalz ;ymfv2ifn;.w u6av*b 9sgn0 cis fv6a;n2gfvu9w b;. z0iy *nmrcuit 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 the elec) pbo c;y2fhd;bk2+nk trical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements 2p);f h;o2b kybk+ndc 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 resisth0xb)c151j ijfzp5 hv ance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in th1 xf hjzi)55phv1bc 0je 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 jg; 0jpjqckx an/z2foa280q- 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 dia0xkaq focgz2j/ j28jn0-p q;agram 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 and fou s3.d t5qhyo:pr identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently b5shoyt q.pd:3reaking 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 s1fol ocpzq7gsz*hu f n 9:+,;hnwy 38wire 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 cipslyfzfh w1* o:,3 9 n;uhqz7s ng8oc+rcuit 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 w2 lfk7jmcu-3.lwq6rbfq n1 8lire (no resistance) connects the points labeled A and B, which of the numberedbqwj nfml83 kq7lrf1.6u2-cl 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 lightx1y 8b 7l.1gi pdp3tccbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, whi1ptx.yil dpc37g bc18ch other 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 snd 56bn 5,h rkst*ww3 are connected into a circuit as shown. All wires are ideal with no re,wn n*bks 6rtds53w5hsistance, and 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, the three light bulbsaoi((aipmn7; 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((i anaoi7p ;m 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 foxxi)y7i;5aqoi oy+ n, ur lightbulbs have identical resistance,the battery is ideal and all wires have no o+iy; ya o5q,xii)7xnresistance. 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?

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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 ideal bavj9z 3yma o/11tqb1 oyttery. If bulb #2 were removed leaving an open circuit there, w19yy/bv z1qm ot3 1joahat 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 circuit diagram, which one of the buvbbm8:g-k bk4lbs will not light? km :kb 8v4bb-g

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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*t:l50 ie 6bjeu- n4uivhrp ,l ammeter reading is initially I. The switch in the circuite hvpbnt5li- u ,e6 i*jur:0l4 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 shown, the four light bulbs have identic*: 44jzf8ossx t*vu fzal 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 dimmeros44uvt 8*sxj:fz *z f 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, aa 2:p(+ lo)bjze9auqyll three lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of zao:9apu )2+ (yejql bthe 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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