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1#

94.28: Four identica9(sg rixwd* t6l lightbulbs K, L, M, and N are connected in the electrical circuit shs w6(d9g*trx iown in the 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 ligh9 qq1xlzqkg.5 tbulbs K, L, M, and N are connected in the electrical circuit shown in the accompa.xq5q91z klgqnying 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 n9+hvm.e4vcg j a8y+cf.w;zf the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of t;my+ngwh+fc9ev.ca v.8zj f4he 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 th5eq7ikktcvw 77igljtni.hei1:. 37ge electrical circuit shown in the accompanying figure. Bulb Kt7 i7i5n:3gihw77v .1jtq.eckglik e 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 lpjg 7i d/i;qj8ight bulbs 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 diagr8;7/iq jgj ipdam 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, /6zwd7zj fp4;st) epdfrdm ).with a resistance of 10 ohms, are connected in a z.d)f4te j dmzwp7 )d;prf/6s 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 an ideal ammeter with zero remt.w1 bg7 3xqs p(3lvhyt 8r0ty 3gdv3sistance and four identical resistance light bulbs which are initially illuminated. A person rem3qdx7m g3 sh0vgpv1 t3yy8t(r t b.l3woves 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 circuitlcg3; 7 4. n.2i9enuxqqu ybmt shown, a shorting wire of negligible resistance is added to the circuit uleq3;m.u297 4tn biq.cygnx between points A and B. When this shorting wire is added, bulb #3 goes out. 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, wwmz7l.r ; 2vqnhd k r/ov8u4;yhen a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that al./y2l qn ;ur4;wvmz d87vokhrl 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 ynoa38q8qw2t; u xx 6/yf-an5gd 4xhpconnected as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminatonxy58t nqd ah 6yau /3f8pq2g x-4xw;ing bulb #4, which 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 bulbsd(5wjo* 8j 0wxs )zvku are 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 circuit is closed, aside from bulb #5, which of the other bulbs brighten? xu)8o(d5v*w j s0jzwk

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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,h 0 aprf(g6v4k 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 eitr a( 0pkhfvg64her 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 li9,rrvt:5g px*3q fz(4eek eqtghtbulbs have identical resistance,the battery is ideal and all wires have no resistance. After the switch, S, in the c4e,gxkqqt:3e 5z9t f*(rr epvircuit 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 conn:ja-x +3yq aygected to an ideal battery. If bulb #2 were remoyx3- y:+jaagq ved leaving an open circuit there, what 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 h9o/m9l s, cxo p tog5((fn.plone of the bulbs will not light? 9 cl( xo/fm9pl,5pons tho(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 ammeter o/f:-dmhvk (s3n hlpy gx1ijh: 1( 3njreading is initially I. The switch in the civ mpdso: gifh(1lkhn x/1j-n(:hjy3 3 rcuit 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 sp0d2lf3 hff*) w) ucejhown, 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 jdu 0*2 hlfcpf) e)3wfresistance 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 have the same resistance. qloevf,;n1h .lfpb 8 bl8bw/3hte 0m1The battery and wires have no resistance. What is the proper ran otb1/w ;1b3hel.eq,p0lf hf8bmv8nl king 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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