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1#

94.28: Four identical lightbulbs uq a -uy5d 4alr6*u-cyK, L, M, and N are connected in the electrical circuit shown in the accompanying figd u5u-- 6lry*q aa4uycure. 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 lightbulbxk(2(6i ru n0c us/ ud,fhzn*ps K, L, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank the current through the*,c0 i/nuhsp(urkzf(n62dux 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 are co tpbb;fijr (swm,) k-:6uzy7tnnected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the followin(p:wu),r6tzm7 tb-ibsf; jk y g 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 conneplg0xj,b glpn:+ . 8q(ojal* octed in the electrical circuit shown in the accompanying figure. Bulb K burns out(bl+qx gjla oo.* ,g8 :p0jpln. 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 conn3x-kgjn/lu.u ected in a simple -ugul/ 3xjn k.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 bulbs each, with a resistance of 10 ohq jeq-wr* 9(8ijec7hh3p v7prwqx s ,/ms, are connected in a simple electc j 7q(wpere rqj9q*ph/-hx,v87i3s wrical 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 resistance xpd:f 6h 1vm.zgmf(5 zl-)xtland four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket tz(lff:.mzgl51x d)xhtv pm -6hereby 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 io.fmcus qv19)xu4u0of 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)4 09 cv1ux fmisu)u.oq 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 circuitmd1 uq *hs)qwb ysmuj1 nkxw.8j(vlz:988)ix shown, when a shorting wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs become brighteqlwxb uj8q *iuw.yk hs v1)x8n1mds( m8:z)9j r? 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 connecteiel88hllrk 2fmg70+ k 3l1t kxj y/7bvd as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #7k8/0i kl1bl g +tjy mx8r3elv hlf27k4, 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 arvn /i(fd. v iwkpf,:p2e connected into a circuit as shown. All wi.vi dk: fp2,f vnp/(wires are ideal with no resistance, and the ideal battery has 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 shown, the three light bulbs9l0fkr*.aw s e(xn:kir t(0vb have identical resistance, the battery is ideal, and ri a(bv(ewnrkt0*xk.: l9f0sall 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 idc ()zvo8in9:(f iblb nm9)ham dos;x, entical resistance,the batterzod,im98 iox nfb()(9h)c mn:;lbasvy 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 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 ideal batt/q, -,eqw*og31) qlwxemwmz q ery. If bulb #2 were removed leaving an open circu1m)m qqo wz xw,q, e-w/glqe*3it 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 lig5,,0tegum+yxtvewc z/q 5wf8dvj0plbl 6) ,v ht? g t/vdwvqcvbml f e5)z8xy t+ejw ,,, 0lu650p

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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 ammxr,c y3fki.7 beter reading is initially I. The switch in the circuit then is closed. Consequentlb,y x7i.k c3rfy:

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 /n)l qm*nsgs ;eegb3fogz8 1 1resistance, 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 gqg e n)z*se8gol1s13nm/;b fcircuit. 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 resistan iw rbqu,7t3jbtee24+;o bk*eew k0l8ce. The battery and wires h wbreutkq802 keob+7*4bee 3;t jiwl, ave 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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