Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K, L, M, and N are connected in the electrical qx+w;cmgv ,d- circm+ -g wdqvc;x,uit 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, c9tyex, hu-c7 L, M, and N are connected in the electrical circuit cy7x9, t-uehc shown 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,lt 3-1g zgep,y and N are connected in the electrical circuitt3ye g1g, pz-l 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 li)c+3gwmrh j,fk zqqp:gh1 64nghtbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is tru hr3j6wqhzn: pq+),g c4g kfm1e?

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 resist 6wwc: m1f.c(fr9dn ypance of 10 ohms, are connected in a simp6f1my:cwf (rd.wcp9 n le electrical 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 bulbcw/: kvb b+lp4s each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shv+cl/ w 4pkb:bown 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 -q*cy-8i2ssfork .a1sd id ;lresistance and four identical resistance light bulbs which are initially illuminated. A person removeso c l.-fsdis-* dk1ys;iq 8ra2 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 circuit shown, a shorting wire of negligible resistsj9wqpt5.mu4 ovc +3hmy8 / rkance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all iden o893v5tm/smw.ruy cjk h4p+qtical) 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 shorting wire (no resistance) connectsezkxw2 em )-f gsn7l)- the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical and have resistance R.mk2)zes 7x n)-e lfwg-

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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 connectedsjj5c( d):lr/+)+t 3 fq7 us yhmfselpi0z:ps as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become brighter?)lfdfsl:(msp 5zqc+tpy rhj 0)7je u:/ss3+i

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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 cqbie,5vabpylqd 2q1w0o, 0y)w;z r 6w ircuit as shown. All wires are ideal with no resistance, and the ideal ba q20r z)y1l 6e id,,wqbww05aybo;vqpttery 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 bulbs have iden9mtj nj)4s8q;vfoh 0ptical 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 9v8qo ph0 j) tjm4nsf;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 circuimd-k5ew 0y a4bt shown, the four lightbulbs have identical resistance,the battery is ideal and all wires have no resistance. Afterma54dk bywe-0 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 showe)5weci b;c*h.ump ;zn has 4 identical light bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit theh*e5mzcp)i;;c. euw b re, 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 one of the bulbs will not light c.hx p( jtwdm7u*/99uw rhwf2? hf r9 *ct umh /.wwux2(wjp79d

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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 slrnd3 + 18 zziz75se( /o7zapdiw.nl reading is initially I. The switch in the circuit then is closed. Cozeas (zlnnz 3d/17d rwi7sz8i+5o.lp nsequently:

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 identil .5iepi yyzwk-t7()xvv ,rb,cal 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 ,. zxy ekv(,y5wrb7it-pliv )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 resistancehway9q d0c-c0 . The battery and wires have no resisc- 9awc0 h0dyqtance. 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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