Combine Problems - 题库网 (tiku.one)

1#

94.28: Four identical lightbulbs K, L, M, and N are connected in the electricl8pd9s b (-f qv.zgd5pal circuit shown in the accompanying figure. In order of decreasing brigd9 d-f ls5pv 8q(pb.gzhtness (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 co 6p3v:vtb3u0anyk0ag nnected in the electrical ci k3:3gnv0ya pub6av0t rcuit shown 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 lightb82 t)maza*f 0ve8xnt nulbs K, L, M, and N are connected in the electrical circuit 0*zxtm2ft)a nena 8v8 shown in the 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 lightbulbs K, L, M, and N asu p yk3v(ru kiu*3z kc,i keirp,(y*bbf 0780re connected in the electrical circuit shown in the accompanying figure. Bulb K burns ou7c*3e r,kuu yii 03pfu8v,(k sbk yp*(zbki0rt. 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 broc;5v63b k zixf3q:fmm+) waulbs 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 3:x m )icvr;mb+36 kzfo5fwa qthe 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 ohms,rc g yxko05;2l are connected in a simple electrical circuit with a switch and 2cl50 yr o;gxka 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 resistanqppazxa h1804 i7/m: it3iupdce and four identical resistance light bulbs which are initially illup:a7itdz 8i /qimuh 41p0a 3pxminated. 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 resistar;ratv)lcau v 4/a1(((fglmh nce is added to the circuit between points A andl ()(mu rvatc; agvfah/41rl( B. When this shorting 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 shown, when a shorting wire (no resistance) co+ob b 8qaibgxx(*h d13nnects the points labeled A and B, which of the numbered lightbgb1 83b(xbh*+xaqd o iulbs 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.;7nhq(u 7uj i :paczgx(wua: 3:v2bka When the switch in the circuit is closed illuminating bulb #4, which other bulw(hu :(7: zg bpa;vca qxk2ja i73uu:nb(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 infb l1io(p1k /ito a circuit as shown. All wires are ideal with no resistance, and the ideal battery has bo(k/1i1l pif 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 bulbs have identical resistnd 1o+oj.n)k :9ioi5rp ue6 ppty1.byance, the battery is ideal, and all wires have no resistance. Which one of th o )ik+..n r1y p6 ppybd5to9:uojn1eie 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 resistan (pjqvh)ro7:- nyek +*h*wgau g,n, fnce,the battery is ideal and all wires have no resistance. Aftq7h:o jgn gu+rev, hnfny-**), p(akwer 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 connect(68 wzyh/h lz ; wyz*hkx,d6reh4 ucb1ed to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens tor81zwhh/zdwchkyu*; (bz6l4e 6 h y,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, whic7:b)jydthssg-* b 7 btxetv3: h one of the bulbs will not light? g 7dt-b x:37ht)yeb:sstvb*j

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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 kz wxa.z;fws7+ xr2h;zrf3 7 7iaz(klI. The switch in t xrs7flkhzz za waziw2f 7x7 ;k.;+r(3he circuit then is closed. 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 ligh(+t;,apb gmhl t bulbs have identical resistance, all wires have zero resistance, and the battery is assumed to be ideal with emf ξ . When the swgp (m+ ,ab;thlitch, 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 sho chgz5gz cvnxhav ;+(n w(j+63wn, all three lightbulbs have the same resistance. The battery anda5 zcgnhw (zv+j3 +v (hx;cn6g 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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