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*1hdwwk 6 ,1v yz6kepq in the electrical c z1dhy 1*q6vkp,w6wkeircuit shown in the 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, L, M,f :7n -m7idr*-gvjh 9pr-lvur and N are connected in the electrical circuit shown in the accomv-:ld-rr 7umgpfnhjvi-7 r9*panying 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, ghn s7)xax1qlvsxo5u .2n p96w1 6u kaand N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns outnua6 ku hl6qsn p5721gxs )o19a.xvxw. 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 fb(:xq 5+sjgaelectrical circu5(a sj:x qbgf+it 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 resistance of 10 ohms, are con kyg9 p;0+lpbvnected in a simple electric 0;+lygbppv9k al 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 of 10 ohms, are conne-biemt kv*pr2+2cf x(cted in a simple electrical crm* cxiet+ f2kp-bv(2 ircuit 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 hasm4 f3ippvu3 )tg7v 6iu an ideal ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4muv guvift6pp73) 3i4 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 netl6gcry(6 yh )dit85r gligible resistance is added to the circuit between points A a riryd6h8)tgc5y6t l(nd 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 circuied+) o5z-ndm sy6 lr1m2an+tetog/ 6l t shown, when a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four -l2rot et 1)a+/ngne6 dz mmd+6lsoy5bulbs 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. :581z;n g+p be7ozovgc v* forAll lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become brioor*7zv zf1v;g 5 g bpeo+:8ncghter?

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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 conne 9(f ch9adsx+(octx f2cted 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 9 c9da +cfxth( o(x2sfis 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 re5jnhgnk:h ;ss;r+ gz5sistance, 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 h n ;kgss5r:z+gn;h 5jout 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 ide6uawg :+i w3ameyilq z)3-qp(rp ,zncl:r* x7 ntical resistance,the battery is ideal and all wires have no resistance. After the switl3)qy-ger3(a z7:+ uapq 6w w p:*izr,xnlmicch, 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 to an idealhu*j3vo,3w-z q- ya(:zcnhic battery. If bulb #2 were removed leavinzc(*q --vayczj: hou,hniw 33g 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 diay 61fw .)0llz dyjfj4hgram, which one of the bulbs will not light? 0).jz f6y1fyd4ljhwl

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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 readi.*y3qn5adh d 672 c(nrwk3 ivnmqwe1i ng is initially I. The switch in the circuit then k3i dnn* diay(2m 3.cn7qqwwvr156he 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 identib6u paxm6 x6foe/ fz7+q-u) cfcal 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 the circuit. Which of the light bulbs will be dimmer after f6caxxufm6o-/ 6b7 ) u+fqzpethe 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 resistazt3ebz,d ;8eance. The battery and wires have no resistance. What is the propatb8d ze e,z;3er 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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