Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbsnrdlq/o*. qri -lb60 m K, L, M, and N are connected in the electrical bl*6q 0lod-.qmr/rnicircuit shown 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 Njx1ew* 3ogn t- are connected in the electrical circuit shown in the accompanying diagram. Ran3jg *wexn 1to-k 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 coo ty*d fj8) n.2yorid;nnected in the electrical circuit shown in th2.;t8di )jfndyor *yoe 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 electri5bppxoyfq /ie aar j358+yd6nby t6*/cal circuit shown in the accompanying figure. Bulb K burns out. Which of the following statementp6baqa x38y *6edir+5ob/fjpy y5n/t s 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 7 jro.kkw2k a,*/ ic*s qi;el*zf1caieach, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10ioas 1i a*i klqe 7kf/2*,;jc*c.r zwk 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 obqisqw oy; p.v l:w ,b),fzm;qnz )a3)f 10 ohms, are connected in . sn3, mfzpw,a z)woilyq;qb)v) bq:; a 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 fnp dzi gi286fp9 (6igi0 gtb3ammeter with 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 elib dip86nft36 (i ifg 2g90gpzectrical 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 wiuwpgixxz5 *: u z,7fe+re of negligible resistance is added to the circuit between points Ag,:e5uwxz* pf+ xiz u7 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, when a xac1-vck1u 7u *flyh)shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs bxcl11*achf -uku y 7)vecome 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 li b,c6dj6pjj 9fghtbulbs are identical. When the switch in the circuitj9db,6 j jfp6c is closed illuminating 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 bulbs are connected into a circucwv doq78 kr0 u:unuc9ww1.z: it as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S in the ur w:o9nd7c.:q0uc w8kwu1 zv 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 bulbs have identical resistance, gks4v;68 oh3woswe -fqfik54the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the lo83s;we4f6shw 5 4 kki-vof qgight 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 lightbulbs have identical re sa) -bbp;cf-hsistance,the battery is ideal and all wires have no resif) --abcsbph;stance. 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 hav)sdf8 xg p.- 5qqu4wis 4 identical light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both bulb #1 and from Q to x 8q s 5-gfp4ivud).qwX?

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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 on a(ngi( 5(zkfqe of the bulbs will not light? (n( z5kaf qgi(

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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 initially I. The switch i+0 j*kpdlz hvo488n :agc6aoin the circuit then is closed. Consehk0 88ap6+v c4nialdg j z*o:oquently:

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 lighg;t 2ovj*2, lpi rov924xy hul9pd g1gt bulbs have identical resistance, all wiry2 x,9r2 1tuhj4o;9iolgl vpv*2gdpges 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 the same fc.t**95gtl/3lv,znyx s fc fh*ne )tresistance. The battery and wires have no resistance. What is the proper ranking offg*3 t fy9tfhcn *xsz/nctel v*l) .,5 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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