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

1#

94.28: Four identical ligi 5trv4;p 7c7i eekww;htbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. In order of decreas7i7et5;w ; pvr wcke4iing 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 lightbulbsz fb-im7o4upsb)4al q/y4m2a K, L, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank the current thrzumqp 47l 4)s-b iy 4a/mfabo2ough 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 lig hulcduel2:o-o)s 9h1 htbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the following statemelhucus d:9-12o)ohe lnts 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 connectj 8ca.ryeqby3b q89w3 ed in the electrical c3b q cy.8bje9 8ra3ywqircuit 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 1c9r-i jei0u l8to 6/tm0 ohms, are connected itcm-t/96ri8e o0u jli n a simple electrical 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 bulb7*wi2dxwo s* bs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt batw7 sox*w d2bi*tery 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 aiv1e k; 2pbb b)76wksmmmeter with zero resistance and four id7sbbb2k; v1ikep6)w mentical 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 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 negligible resistlvjyz d7aikx6;smr u*64)vb7ance is added to the circuit between points A and B. When this shortinglr)x*uam7b4y sv6vikj d;6z7 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 q(qz5y6ez3m sf6)oux2 o*a2vsqn2mw 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 bulbs are identical and have resistanw o5vnyq x*a623 mz)(mq2sse uo qfz26ce 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 showj pi*cy 8ly4h)h(alu (n. All lightbulbs are identical. When the switchih(yjl8p(u yla* h c)4 in the 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 connected into a circuitv udv/+f8r/ g0h a6bjv as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S in the circuit agh u/8r+6vvjv0 f/ bdis 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 nazy/ g;*y-t+z 09 ,rsdgn y;j y6hlqjbulbs have identical resistance, the blydg9+ ;q hsyz*;ygt 60a-nzn/r, jyjattery 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 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 resistan5fc ;q .n9xufivdfr*mc6,y+c ce,the battery is ideal and all wires have no resistance. Aff,dy5ci; 6 *qxrnufmc c+fv9.ter 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 )yp t x*92ngxyconnected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens toynpg9x2 y)t x* 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 willuk y*e s9qmlm oo316k0 not light? ey 6ok9m0m1*s u lq3ko

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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 shjhb of--kez x0*c(t9 yown, the ammeter reading is initially I. The switch in the circuit then is closed. Consequently: t9 k--x(c bjeo *0zfhy

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 fo* l rkm zk /ta m5py5mqr;;enf:+xa y-ite9;(sur light bulbs have identical resistance, all wires have zero resistance, and tl- 5;*5aq :ea;t/mn ;xfmi py9(e+rtrkmyzs k he 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 three lightbulbs have the same t--vwsq 5aj52 ac dgps6ph v*f;s tq42resistance. The battery and wires have no resistance. What is the proper ranking of the bulbs’ brighdsh fct5 gqw5t2 q sp-; *-a2aps46vjvtness?

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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