Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K, L, M, and N are connectedcdq c,/txi +a9wwu:*utg* bd. in the electrical circuit shown in thetdgxwc 9,*:but auq. w+ */cid 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 (5x to- :::ylappm okmyi87se, L, M, and N are connected in the electrical circuit shown in ti kx-l8tm: a(ppe y 5om:os7:yhe 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, and N are connected in thi fg *4d;wx 0mn)wtn)ke electrical circuit shown in the accompanying figure. Bulb M burns out.* g0 fx t)ni;d4wm)nwk 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, M3vh)yjno n/ 7x 7iran6, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the following statements isnr/)io ayxjn v7376h n 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 axx dr4c(. fm+y7:nu kf resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagram beloxcf.7m (xy4:rd uf+nk w.
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 light2lcjjqi 355 ke bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch e35l k5ciqj2jand 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 ammeter wg*md0hg6 pb hc)qvj85iv nrdisk6 :mwln1) 0,ith zero resistance and four identical 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 ssq:bin)5k,)68w mrv1g hmncd0 0vgjp*lhi d6 tatement 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 resistance is addedq/egul1nls ,bi 3 0g 0)zx0pwo to the circuit between points A and B. When this shorting wire is added, bulb #3 goes out. Which bulbs (all identical) in the o3lupi),s 0b eg0lw zg/1n0qx 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, uy6(wx:rm6dyw*j;n:b0lan i when a shorting wire (no resistance) connects the points labeled A and B, whic0by a:r ; xw*d m(nn6w:ly6ujih of the numbered lightbulbs become brighter? Assume that all four 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 lightbulbs8olk,f n9*qk+p mf/zk are identical. When the switch in the oql,zfmfkk 8n/*k+9p 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 k,cdt(6)cu c h light bulbs are connected into 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 cdhc,6k)u ( tcfrom 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 o+p zk)k;fo;e bulbs have identical 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 completely w)k ;f; zoe+opkhen 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, th6a2)m hn8f b3qyjm0p*bc pn) re four lightbulbs 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 describes what hrfp8a )3*0c nm)m6yb2jnp hbq appens 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 conne;qcjotr7j 4+r1t,hescted to an ideal battery. If bulb #2 were rem4oc1rr,jj h qste+;t7oved 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 d8g:p g7 e)t l9em9opnuiagram, which one of the bulbs will not light? 7poml 89p egg n:9)teu

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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 i-mjvr:z1tykj d :yd.; s5e:brnitially I. The switch in the circuit then is closedzyj t.r::jb:1 ed ;syv-mr 5kd. 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 identical resistances8ar j)c* 9cj vw1bcta1 u:qb., all wires have zero resistance, and the battjc abc b98c:vr1 1a.*qus) tjwery 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 shownj:b8ce ygm98 nue)h n), all three lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking ofj 89hnege8)) uymn:bc 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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