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 in the 7sdm:pdu dd-6n ibq86electrical circuit shown in the accompanying figure. In order of 76nqsbdd:m-p d 86u iddecreasing 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 the electru9m45p nek0+ dfa3t kvical circuit shown in the accompanying dia+0v93ak5p 4efnmu tkd gram. 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 light r(94 uijh:cc yo:+kwq 8ffuc,bulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the followincy,: + qifwc(ur j:ukc8o h9f4g 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 lightbcf:u 6ymwx;mlfzuh 8391c2jhulbs K, L, M, and N are connected in the electrical circuit shown in the a jlzch62mwf1x3h ;9 m:u fuyc8ccompanying 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 o, vr/-rxglj/7ik 5f rjf 10 ohms, are connected in a simple electr ,/7fv gjjr ki-xl5r/rical 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 ohmrifaz2*.jbd s,(+ ,mr hc7pks s, are connected in a simple electrical circuit with a switch a 2.(jc7*i+bhfzma,,rdp sr sknd 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 r 5 p.ch.p2qr+sprkk7.ju zy 55gtxj)cesistance and four identical resistance light bulbs which are initially illuminated. A person removes the j)xhpg 75pp 2rcq zyt5.uk..+rsck5 jbulb 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 sslj7*f8g ph6e6ntx* 0wuc ,h vhown, a shorting wire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bulb #3 gng0lv p6xu7w6,t 8hc*h jsf*eoes 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, wheqebbor 7-p:o47/nookrp. ; cy n a shorting wire (no resistance) connects the points labeled A and B, which of the number7rb :opckqb4;o/n -7oyo. ep red 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 connected as shown. All lightbulbs are identical.xxk0 43o vkz8f When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also become b8xo0x34v kkzf righter?

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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 as sho)h ec4 8a+fx+f3j2 larn.mjgown. All wires are ideal with no resistance, and the ideal battery hasaal4jh 3j+f r+2eo8n. x gc)mf 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 7je 1 (lu 2 jwp dz8g8s4oxudf5j81ihhshown, the three light bulbs have identical resistance, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly ilwids u pd f58uo482ej11g 7 h8h(zxjjdentifies 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 resitq e )7htoo(o 5hy vqi9u7.x:hstance,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 h79 eo u)yho t.ihq5qtv7xh(o: appens 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 bul 2l g;urr2rok0kx)f(nbs connected to an ideal battery. If bulb #2 were removed leaving an 0 gr2xu (o2rkf;lkrn)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 will not lighleqmtv/:t)r 7+/6cqvka (h iut? mt+ 6qv e ai/vkqcrl( u):7/ht

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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 switch ix3hc ;h ln(iisg1(/i on the circuit then is c(x1n3hh/ig;soi(c lilosed. 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,;0 ie 0ny5q rqcmw;tx- the four light bulbs have identical resistance, all w50-my xeqw0;ncqir;t ires 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 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 gvip,),mqb h9 the same resistance. The battery and wires,qv), hig mbp9 have no resistance. What is the proper 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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