Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K, L, M, and N are ctiufvh. : f1j9onnected in the electrical circuit shown in the accompanying figuretuv91jfif .: h. 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 izpvbws32 f :*yn the electrical circuit shown in the accompanying diagr3z wb2v*yp:fsam. 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 lighl :6 co)/z9 dzcrba,putbulbs K, L, M, and N are connected in the electrical circuit)a/c,b6z:odl 9 urpcz 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 lightbulbs K, L, M, and N are connected in the e 71b5(lnwxzvxlectrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements is true(nz xxwvbl157 ?

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 jz0s 7ex / d hbc)0dbm7+yww-tlight bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 vo 7x-wzcdy hdw m/)tb+j sbe070lt 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 of 10 ohms, at2hao re 1e,3jl 88jmlre connected in a simplemjhlrj3e a1 t8 82e,lo 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 ammete5lhlj ti;6a,schwriz f1;55tr with zero resistance and four idec;5atzf6i1,jrh5i tl5w;h sl ntical resistance light bulbs which 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, a9hqfc*+dr n3 a shorting wire of negligible resistance is added to the circuit between points A ancandr *hfq39+ d 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 shorting wire (u7n -jfakdy4pm.o+ mx h r1y81no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical a 1xjprknd-+a. 1ymfm8u7 4o yhnd 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. Whac0 0sl5yqx :ven the swis0clxaq05v :y tch in 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 are connected into a circuit au xvm*fbx6* h6s shown. All wires are ideal wb 6*xu*6vfm hxith 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 identical resis s *ch;cl6x sq-rw9d)2q igho4tance, the battery is ideal, and alhx)*6o2l-hsqcsw cq9d i4gr ;l wires have no resistance. 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 h7xejch m-k*h6 sv(r,mave identical resistance,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, which one of the k*hves,6( cx7m- rjhmfollowing 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 o g36ix r;gq(-vzifei5 k3abfuo.2q ( 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 qvk(g-;6iif r .u(3 xf o2qe3b gio5zato 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 b15.4oilj ffmxq e)g1 bulbs will not light? ml o g5i f.1f4e1qb)jx

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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, tq 1 f2deg 5 ho(vesy(ogd0n,a+he ammeter reading is initially I. The switch in the circuit td5 0(hoqgve( ynde12o,+gfsa hen 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 bur u:ef -. ya e/-fwdclmz +a77mm++ucxlbs have identical 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 of zero resistance is added into thm+w-au.aze l:fu7/m+xfr7e-+ cmc yde 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 reeok(5h4 *qk c.iwq 5rrsistance. The battery and wires have no resistano k5w*4 .(rqk h5qecirce. 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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