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 i +tnzsdfopit04;v63 wn the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting 6+4vtiof 3td0 ;zwspn 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 lightbulkt ld d mwu/vzv63avv2+a6* f5bs K, L, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rz u3wvvl6matdka/fv2* dv6+ 5ank 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,7auxsm-2of :z xiz:1j and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Whjs zau1o:i2-m xxf z:7ich 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 q .9ack)hqm xr74 kl0hK, L, M, and N are connected in the electrical circuit shown in the accompanyixhklk m9ra). q70hqc4ng 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 lrgn1h6 4 )m1nuy0wse6fp b)cksyo2c. ight bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in t) cp0 f.s4nug1 6ebcw) ork6hy1nyms 2he 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 resistaq98lhei3jex oc 6tr8 zyj;1 g5ja8kw 8nce of 10 ohms, are connected in a simp zxijgw;t8eokqa 518e89jlc6jh3y r 8le 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 shown has an ideal ammeter with zero res,uv3(-d/w3s+hj ttq swa h ng,istance and four identical resistance light bulbs which are initially illuminated. A person removes thst, a-+ /uqdvshn(t, ww3j3 hge 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 s0moq9q6 lb6y5vp m rz,hown, a 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 cir 0p66q ro5b yqvm9m,lzcuit 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 9d oj *)sq)2bruy,tjjgaqjet )i* 5k6a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbs are identical and have resistance )aq*5 i6)sjyju9 de,j o*q)jt b kg2trR.

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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 *snca ckdipt+( i4j9, identical. When the switch in thpsck,ct *(i+i9 d4 njae 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 conn3+4)u:pwjmj vqj n lw+h qyt14ected 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 closejuw 4)w+qnjq+vy 14mjp3hlt :d, 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 ri;1m mrcysku 8dh(o 7ibp/ x0(esistance, 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 when the switch, S, in the circuitmxio1kyd((7s08chi /;r bpu m 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 resistanch vz+ x jotwkbpt*0,;rrb2)/qe,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 qbxzt) 0bkwthorj; r+/2v, p*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 zzt- )*koe/it4yknrk +vm,r :xhz k:)light bulbs connected to an ideal battery. If bulb #2 were removed leaving ohr:nk +x,zkz)- vktki4e z*t/y):mr 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 bulbs wio + mrrona:2,tn 9:njwll not light? an :rr:+ nt ,nmow9o2j

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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 iniqaw;l-qn -6.otj8gfh tially I. The switch in the circuit then is clw;.a-n6 ghfq t8oj- qlosed. 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 ghn/tj89bl0*t rgeprx 9a*8yd5w g0 cresistance, 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 98d*pe garbc8 w0n*l9hgj/5ttg yx0r 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 lightb +ybq,.,i mj jqd)*a(yqqeqy)ulbs have the same resistance. The battery and wires have no resistance. What is the proper ranking of the bulbs.+byd)jy m,a qqeqi(q ,*y jq)’ 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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