Electricity and Circuits: Complex Circuits - 无忧得胜-网上国际课程 (5edu.win)

1#

94.28: Four identical lightbulbs K, L, M, and N are connected /hy4 arjc 3yec,hy;-r7iu xk+ in the electrical circuit shown in the accyce;cy4rayj /7,i x hhruk3-+ ompanying 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, L, M, and N are connected in they)zb:vt1y6 pof w o;8e electrical circuit shown in the accompanying diagram. R8v1 ypezb)6;wy f oo:tank 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, a wrejy2evrla.d9.p f7z(ef-3 nd N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the following statements is trzf( raf7- d..29eryp3 ejewvlue?

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 con yiqpx2 (6nl.znected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the followin(npz6 2y.iqxlg 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 resistance of 10 ohmu *uf8zddeq 9/q)4we ez9 xhf5s, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in ddu eh) 4*z/8 xq9we59qzef ufthe 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, are connec k2 bm8kcoeb ac1s08,gted in a simples ,28kcoa 801 bekgmcb 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 showh5r*vlwbc 6 k,n has an ideal ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A p *5v,cw6lhrbkerson 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 of ne2 4r u1n.y27oeyn-3 er iyewkagligible resistance is added to the circuit between a1yrneu r7ek-nei.oyy2 2w34 points A and 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,f5+gdrz0)q+;k aat h b when a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that alrfaah ;z+b)kd+q g0 t5l 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 lightbulbs are identical. When the s450h t/ad cafbwitch in the circuit is closed illuminating bulb #4, which other buatbcda4f h/50lb(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 ag xo4791tnxwnveov 70 s shown. All wires are ideal with no resistance, and the ideag79e v0tn 17vxoox 4wnl 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 ligh/kv se;u m73elt3: ydht bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correcsyv dl3/ek7ue:t3hm ; tly 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 resi1 g dz4qvjxo84stance,the battery is ideal and all wqzo1g48 x4j vdires 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 identical light bulbs connected ),ncoelgr xpsux; xd ou q2:y 1 1+o86wzye1i9to an ideal battery. If bulb #2 were eci up+x;q2 x 1,9og)1onru oz86wlxd se1yy: removed 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, which one of the bulb 2xt/( l5ejqwa,f z9vuh.i:bas will not light? i9 zh( /bjw, x5l. fvtaqu:ea2

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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 initially I. The switx y70f)2d s:fas q7qiych in the circuit thd sy:s0yi7affq)xq2 7 en 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 bulbs have i/wc rdlr ij:c:+8m4 iio q/yz2dentical resistance, all wires have zero resistance, and the battery is assumed to be ideal wicz2/r8i i+l wiy4r qj:mod:c/th 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 show0m 3 rqfiu zqh.l.+ev.n, all three lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking.+vu3iqm.. rhql z0e f 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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