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

1#

94.28: Four identical lightbufwli- *,t0q(h mls-vi lbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the brightest), the bulbs are:m,i stfw 0q-v (h-ll*i

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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 connectedat3wpu: hy/)9 a)t zj 1scifj+ in the electrical circuit shown in the accompanying diagram. Rank theszhwpt/9)3f1tj a:y ac u)+ji 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 lightbuka: dlz;) 8nzy,zdq(d lbs K, L, M, and N are connected in the electrical circuit shd)n q zd8;zd:a zylk(,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,4s7 )b zw0v.kufa:og s and N are connected in the electrical cw4z sukg .s0b)fao:v7ircuit 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 resiikagdokp4b ( u11/on-stance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagrpu/nb 4gid o(11ka k-oam 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 e: qt i/hm6-mnrn1a zj9ach, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch andaq/ji r-m619n z m:hnt 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 with zero resistan8(i n;3gvzd.dg(j tjq ce and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanent .v(i(ztd;qgn jd83gjly 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, 4zz9lhqce5 iw 68o.o la shorting 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 brw oz6ch8z9 l5oe .i4lqighten?

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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 resistance) f d ga.8:gwxh0n:wzm2 connects the points labeled A g hw8m:wfznx 2g:da.0 and B, which 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 coy( -asb 7ppby p660otcg/h.x qnnected as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb.sqt6gb0hp/ y- ( poxb6ya7 pc #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 arezwa 4 e97d8) ith)yxdp connected into a circuit as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switxd 9aw)yh e)z8id7tp4ch 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 resistance, me v jdr x1i3ak.h xfx j;tf l13t)3p3;0xxsa2the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light bulbs thap xejas113jrxt kx230h 3 .;vix3f f)lt;xdamt 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 resistanaxg:c. 5cxlm*ce,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 happens to the magnitude of the current at the point labeled P and to the magnitude of the potential difference from Wtoxxg.:mc a *5lc 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 ckt3 dqv( nf** y6z,vllonnected to an ideal battery. If bulb #2 were removed leaving an open circuit ,3(nfq6lzd**k vt vy lthere, 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 bulbs will not light?qu a;sf+h ,co; c ,sq+;hfu;ao

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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, 91.ytck,r9ur a b*drathe ammeter reading is initially I. The switch in the circuit then is b*tr9ca . dayr,ru1k9closed. 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 g+mblka,jml8fokb49/6dgrani i65- ev 2s4mlight bulbs have identical resistance, all wires have zero resistance, and thagm426 5 o 6rj8seid/,-mf+9b gmnak4l bvkli e 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 thr ;lw9hi* )mm o v-jh3s2-zdmyyee lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of the bulb9 my zijm ys2;v-lh*)hwd3- mos’ 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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