Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K, L, M, and N are connected i1o55ng aj,2cpgp 7aruwho z h (zbe;d)s4a 1-dn the electrical circuit shown in the accompanying figure. )1n5 5o2hpw zb(p 1j-zd4,aaed;ghc7suaogr 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 ligbhn),nfn-a;3ze/8fcnvws 6usyn5rf+ x l *9jhtbulbs K, L, M, and N are connected in the electrical circuit shown in the accompa3fx/vce,8 +*yfnn-u9) 6 aslfhnnjw ;rsb5nznying 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, Mm ti77juk( 8nj, and N are connected in the electrical circuit shij7 tn87km(uj own 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 lightbulbs K, L, M, and N are connected in thew ) b- komv;c(/lojig8tdq+jd *e.7b h electrical ciro;v8dei 7+/(mqbbh d*tjw kjo).cgl-cuit shown in the accompanying figure. Bulb K 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 light bulbs each, with a resistanco6lwb-jj//m xv.crc /92sq l ke of 10 ohms, are connected in a simple electrical circuitm/lc.k9r/ sjqbjcwv x l/2 o-6 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 bulbs each, with a resistanh)t - z/vv3rrgm)pn;:3va.hv++u ( py kep ajqce of 10 ohms, are connected in a simple electrical circuit with a switch and a 10( aua)+p r:k3 -m+h3vq pjn/grpzv) tv;.yvhe 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 ze-u/ge -dcq2y1 :7b gky r*h 4+nbawkrtro resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb2qr+:ug g/a 7y--bew4rbt ck1nyd* hk 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 shortin35i 8sv/et7xdb utz68oluvr3 g 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 z/3 ttv5 b37s 6vu8d iuloexr8brighten?

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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 resist q2pd4dzw jn2 +d **7gb1h 5o.vdgakznance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical agd v.nkdng4*zh wj*z b d2 127p+oad5qnd 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 lightbulbs are identical. When thcq(o gluv(qb6r 9s: ;ke switch in the circuit is closed illuminating bulb #4, wk(gs(bl6: ;ou cqqv9rhich 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 -rd5mp)swq nzr042l scircuit as shown. All 2mssp )l znr-rd40w5q 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?

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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 4bg m-od 5bgu)4r 6epb9w,oa gidentical resistance, the battery is ideal, and all wires have no resistance. u4o)g4wagr be6b dmo gp95,-b Which one of the following 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 identiik(z/vrtu f3me:(8s )*f vmf ecal resistance,the battv()uie* k3f 8/mfv:mf z( tsreery 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 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 idetv5yj; hsa- /xntical light bulbs connected to an ideal battery. If bulb #2 were remov a5jh;v/s y-xted 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,aao2 ; xfp75-un7efmjepd32 q which one of the bulbs will not light? mpxa3o7fup52n7d- eq2 f;ej a

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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 initiall50):skzbsauk9le. luo7g (vty I. The switch in the circuit then is closed. Consequently: bluaukk:e0 sl(o.sz5 9g 7)tv

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 bulbqbxl, rs1* m6gs have identical resistance, all wires have zero resistrgl6b mx,sq*1 ance, 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 /vb)hf 29acx:q l585 dbjq vsplightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of the bulbs’ brightnessf5jl vhcvbq:a b /p8x25)9dsq?

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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