Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K1 ;t ,lc m.ajxn)6vsow okm+*i, L, M, and N are connected in the electrical circuit mi .c*)k 6;t+a1 sv,mwljxnooshown 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 lightbulbs K, L, M, and N are connected in the electrifl1 u 6,5cbkykcal circuit show1u6k bfk,yc 5ln in the accompanying 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 66wyte us++3q 4vonhz kp5u.rconnected in the electrical circuit shown in the accompanying figure. Bulb M burns out. W sot4+ehwu.5zpy+k6ur 6 qv n3hich 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 connehda531lto/ xpf: ee fp(h)+ju cted in the electrical circuit shown in the accompanying figure. Bulb K bue+feujp3da l5 f(xt h :1/)pohrns 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 of 10 ohms, aretlqdd/af1;mh- 7 s v+e connected in a simple electrical circuit with a switch and a 10 volt battery as sho7df; lv/mht s e-qa1d+wn 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 bulbflgv+c q2g-gr) v p4sx3q.u1ys each, with a resistance of 10 ohms, are connected in a simple electrical cir43lvg.g-psxr c1 vy+q2u gqf)cuit 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 withi (iw9s(39me+k*hn v qugm- ee zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking the elkniiev* m 9(-e9uh s(+eq3gmwectrical 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,axudmj 2op37z1anqg61jzg 5 x-e i4h. 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 brighten?12z6aihdmju.p o3gaenz4g-jx7 x5 1 q

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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 wi5z7 ;-ksuuctq-w sypw w3 )iir*sbm/.re (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? As .u )5c7u-rb pmsizs 3s -w;*k/qwitwysume 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.b 0xbcvuw o4r9:r2(dstv* im(f:3qb z All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, wo02 bzmbu: disx*r (tbfqv93 c: rv(4which 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 are connected into gw5y -)dacv zgu+ m.s9a 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 b5dgg9wvc z+)u a m-.ysrighten?

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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 bulbs have identical resistance,x v ozrgh-52r-m g-0)pm(trit 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 whemrgrtt2)vo- p (mh0r ig-z5-xn 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 lightbulbs have identical ;qq)9v ewf5 pm ne je.b z)cta3;egp7*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 P and to thq;efc5ztgpevpenaw)j3* ;7b9 mq. e) e 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 inw 2 610g7fqob )d4xbxctl o(ndeal battery. If bulb #2 were removed leaving an open circuit there, what happens to thelto (6xn4f7ng0)xqcb1d o 2wb 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 cqyv r kye+u9 .bkjq.:0ircuit diagram, which one of the bulbs will not light? j:+q yyqkbver09.. ku

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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 f xls15 v 4jhtkxmm;3;reading is initially I. The switch in the cirf3 v5msx ;m41jl;htxkcuit 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 + p1 aecwg/)r0mw +jpvhave identical resistance, all rjva1 +pw ec)+wpm/g0 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 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 7wpef8d f8-j(przw p k89 2njfthe same resistance. The battery and wires have no resistance. What is the proper ranking of the bulbs’ brightf- 8krfw8e2wnf7d jz8 p9pj(p ness?

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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