Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K, L, M, and N are connected in2xuxg fx4-lf,:xw/ /ytn 9gy f the electrical circuit shown in the accompanying figy9x/l g fyxuf, w2:n-g xx4f/ture. 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 libx;vzr y5m8i9ghtbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank the current thromxv; 5iz 9yrb8ugh 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 elq w:v*lo1r6gk vbz 4a;5ggnqb2x* yt )ectrical circuit shown in the accompanying figure. Bulb M burns out. Which of the follwa byxzgvl)oq;rtkg *q b26g*1 vn4:5owing 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 th -1 pce,mvj.-;(dryzefcws gvsk. ./ he electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following stat s-sy/,.1jh.-f ;ev(mr dev.zwkcgp cements 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, rp+qrslw9 6p light bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuip ,+9p rs6lwrqt 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. r4qpkj1l (mpwz+mo,y (cpa8 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 di8w.4 (m(pk arqz+ p1 jpmlcy,oagram 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 frxm z5-d0j )*xlcrz9c our identical resistance light bulbs which xjzmdcl)z*5r-9c xr0 are initially illuminated. A person removes 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 feuiq* 3h -0 +ts,cihjrh0rh .wire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3+jht -*. r3h0rce ifsqih,hu0 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 shorting wire (no resistan2z xo/ e ep1,)jyay5-ciwa-dece) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical and have resistance5e p/oa yzax -,)i1y-j2ed wce 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 connerqen0 ),k vvr 5.pqkz1cted as shown. All lightbulbs are identical. When the switch )v1q5,r qknz.0v krpein the circuit 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 arxy+ m b*e+t9*whv2xpre connected into a circuit as shown. All wires are ideal with nr*92w+b x*v hpe+ xmyto 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?

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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 havet)h2p+zf*l yp n:ew wmf,nn0snh+; f5 identical resistance, the battery is ideal, and all wires have no resistance. Which one of the followinnm+ ;h:f2fpy *nlnz5)+hs 0p,wwe fntg choices correctly identifies the light 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 resistancn 7 0rn,too u 6,.nchbg2ss*cwe,the battery is ideal and all wires have no resist0.un so 2o6cs ,*c7r tngnwb,hance. 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 con9kqyt/( jihrxs9x398a3*qe g /px alcnected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage aer9/8ap h33qys(x9gljq k a*ixc/t9 xcross 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 diagrampca ta.w*:p,y, which one of the bulbs will not light? p ywaa.ctp:, *

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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 circuih*jhn loah2 j+ 2h t/f.hwqj*d. n6cd:4zapv 7t shown, the ammeter reading is initially I. The switch in the circuit then is closed.dphzt *ja 2fqv+n:hcj7hl. j4 w./o 6h*nd2ah 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 idenk42dv4jcg8mg+ wqvuj b4rvht251, hhub , 5obtical resistance, all wires have zekmb4 o,5 uqbv ,85wjt 1crhh42+ggdjhuv42 bvro 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 lightbul9:ybkbft hhxy/j7c; ig q,61sbs have the same resistance. The battery and wires hagkxi s;b7qhh9yy/6f bj : c,t1ve no resistance. 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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