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1#

94.28: Four identical lx 3erxq;ut -i 88hawjq( 6y pm:p+vkx*ightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying fiw8pq(x3 x86ekqrhiv-ax:tuypmj ;* +gure. 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 lightb1x f-;d/ nc5p ua47pi(x humqwulbs K, L, M, and N are connected in the electrical circuit showhcp/ p 7nfu- a5;qxmwdi(14xun in the accompanying 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, and N are3(pln:zg)sl*p/fn nt connected in the electrical circuit shown in t/3* (fll:)p ntzn gnpshe 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 li/6oq7hk kqxv,,mb +6mh7ng s dghtbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out76b, onhx+/ ,q sk6 mgkm7hvdq. 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,. ojp le20d rnm;xh4q. are connected in a simple electrical circuit with a sw.0m.4l oqph d2rj; xenitch 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( y 5qgmv(jh/p,dp r+r a resistance of 10 ohms, are connected in a simple electrical circuit with a switcrd rhy(j5pv,/+pmg( qh 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 zerzo7le t79c i33ok+4m p;5 ktn ddexji*o resistance and four identical 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 aft35 lm3di97e+noc oxip*ed jk 7k4ttz; er 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 smzp;90m b 5ithhown, 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 circummbz5;i t 0h9pit 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 a shornukya+u xr;+ ;ting wire (no resistance) connects the points labeled A and B, which of the+ux y;+ran u;k 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 connx.bdw5 hnh*qa:i)ot 5 1px(g eected as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other buqt.naxh i:xdbh g) 515(opw*elb(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 lir83yrapys-hii: oc4-9 i gcg ;bsm;5nght bulbs are connected 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 closed, gr rah8bi3yg;9;im-5ny :cs- 4copis 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 show2c6ijb)bh tw :6/b .zgu 3irtbn, the three light bulbs have identical resistance, the battery is ideal, and all wires haveibbt62:gj u)b6r.czt/ iwh3b 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 identicacb ft:is u5j9p7maovs1 8fm,c b.qv3- l resistance,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 fro9v tof .1 3b8 :v7ma,fjc bp-si5msqucm 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 ideakh4z;,0a- n8ksosuy vl battery. If bulb #2 wozsv- 8syhk0 ,4 ;nuakere removed leaving 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 wix5gunsm, udfrs2 98d3ll not light? 9uu2 ssd5ndf x83mg, r

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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 amme8+ j.xy* xkun0d-u hsjxq5)hhter reading is initially I. The switch in the circuit then is closed. Coj h hxkyhd.x)nq-u8 j5 +0*sxunsequently:

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 resisiwz;me9:t/34 lf azaftance, 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. Wfaea3tm ;i94:/lfwz zhich 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 resistanc oz.woh.(ulcprm j te++- ni8+(fwo b.e. The batterrbu.o p(cmj.elh(+o.z +nto8w-f+ w iy and wires 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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