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 electm wh r9( 3lp+j1llrzn8rical circuit shown in the accompanying figure. In orderrh1 9lrn8 z3m wjpl+(l 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 lightbulbs K,t 08 i;gon6qodyh7z+l L, M, and N are connected in the electrical circuit shown in the accompanying diagram. Rank the current throy8l6t+h g7ni o;dz0 oqugh 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, i.api00g dp9i;:ilqhc pcl .(L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the followihlil i9d p i(.qp0i:0apc g.;cng 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 ulzrhak; h0;t)c; uj hlr)w:*are connected in the electrical circuit shown in the ;;: u;r *hlz la)uj0cht r)whkaccompanying 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, wiezld18l nx3 k-th a resistance of 10 ohms, are connected in a simple electrical circzlk8el nx3-1duit 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 ohms, are / i3+wy0 hmapmconnected in a simple electrical circuit with 3ah p/+mim0yw 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 and9ms 9 0,vwgacwdxen:k .vt-u6 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. .nv,u0 wdsae99xcvg6t:k mw-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 shortin*lytd:n3:* ot 3e3p* nxci7; l ieatmgg 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 identid*cna m3 yl tie*3 3xttgnlo*epi:: 7;cal) 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 res dg29acaw2da :2j)(4)apne t,c zgzmsistance) connects the points labeled A and B, which of the numbered lightbulbs become brighter? Assume that all four bulbtgg),a22)d2 (pmaa d j cz9ze4a:wsncs 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 connected1bb8uu5re8ai vn3z t + as shown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) also becomrb3v1 e+nibz8a u58 tue 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 ligh1vh i5j bn4bw) ;aw9mtt 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 jni5wv4w;mt1bbah9) 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, t; z:z )8)ikoxd- ai yh*vv4zhghe three light bulbs have identical resistance, the battery 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 ish;ax gv- zi4)idz:oyzhv)* 8k 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 resistanca 03dgq alv9 mv1as /euz;*.ice,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, which on1.;aml c90/sid3aaeu* vz qvge 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 lierios my+/. ,s fq(bme89x ,hgght bulbs connected to an ideal battery. If bulb #2 were removed leaving an open circuit there, what happens to the voltage ac y/esi ,b8em+grxf (h,mqs.9oross 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 followingba2cl*u xf c);hl(rv( circuit diagram, which one of the bulbs will not light? ; ccu v2fra)(*lxl(bh

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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(*vt/0 9 px7 6ongcuxmvq 7imd/rbd0t shown, the ammeter reading is initially I. The switch in the circuit then is closed. Consequently: *mpi(tu vd/00bmo77n 6v/qtdx xcgr 9

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 nltpj3x*zde9 9k*xq; four light bulbs have identical resistance, 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 c**9lt;dx njk 3zex p9qircuit. 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 resistance. Tr78 k0-x0pns pvy2ilche battery and wires have no resistance. What is the properc0 02rvl8pyskn -x p7i 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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