Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K, L,))1 slys4h1urm) ctv ar5 ja)b/ix.xm M, and N are connected in the electrical circuit shown in the accompanying figure.s l)rt5m1h)j v/ax.)1 ysci4b)mrxa u 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 a6q-9v-m s+us6ykwr ry re connected in the electrical circuit shown in the accompanying diagram. Rank the current wrqu+6y -s9-mvsr6 ykthrough 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 arex w2qp8 : o;l.3wa4tdafu fl3n2mg sx91wjrj7 connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Whichx:2pn3w 4x 1w9dlaaf2lr gw3;8tqofum .7 j sj 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,)(kp+rnvn 0vn and N are connected in the electrical circuit shown in the accompanying figure. Bulb nvp+v0)k (nnrK 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 resistanrq1izm mnmk7t6kg48i(fa8or o,k 0chc(d *5 kce of 10 ohms, are connected in n r5m64k8kmc m(0oo id z8 qah*(kr,ifgc7 k1ta simple 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 bulbs each, with a resistance ofh/p d3rfjpz (),rr-gs0oojr+ 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as showsgjroh-o/j3rp)rdp0z r+ (,f n 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 resistance and u 8j1 5h q+3akn).4uhou ufcgf+x9peqfour identical resistance light bulbs which are initially illuminatedg)q.fp+ on3c1uu a4kqju u 9xh h58f+e. 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 wire 2x/3 zfkxhwtf pw)(3i of negligible resistance is added to the circuit between points A and B. When this wkz(ixxhf23/w tp f3)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 (no .s)ch)jhi/ kuresistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all ) c/)kuhhj. isfour 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 lightby .ckiteh x1gx*m: zh7 /u3j+mulbs are identical. When the switch ik/ :zx*egti1 .ujymhm ch73+xn 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 ia),fmo /2 p p:/fsbkuunto a circuit as shown. All 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 b)obf,spp:f/k/a 2 umurighten?

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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 identb6olhwz08 8t )yxt(esical resistance, the battery is ideal,8z0)thwex( 6obyt 8l s and all 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 ligo8. scwlst 4qzwv271j,wt- ht htbulbs have 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 following choices correctly dsv1 7,t8 -j2ozq hlctst4.www escribes 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 dn:xv2o +pi,rd+f rw) bgd v03bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage across both b2+x rw+ 3rd:b oi vd,0)pfngvdulb #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 circq3 *u.b,acg mjuit diagram, which one of the bulbs will not light? um 3g *b.,qjac

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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 rezdgl7bejf(8s xa 8g/s bf*:4jading is initially I. The switch in the circuit then is closed. Conss*7dx/b8e4g gj:s8a ( b jlffzequently:

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 identical resistance, a3pr )amr: )jngll wires have z)p r :mgnjar3)ero 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 lightbulbksof:ot8gf4fwrx ,(p h0n 2 9ds have the same resistance. The battery and wires have no resx,or(4 n2 okhsdtfw9p f8:f g0istance. 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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