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 j f*k i/cu.mo 34uwtc-in the electrical circuit shown in the accompanying figure. In order of decreasing brightness (starting with the brightest), the buu 3-ofmu4*ci/tj.c kwlbs 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 connectcu)ls 2g ,35n vnqeb /)+vegqzed in the electrical circuit shown in the accompanying diagram. Rank the current t+zq e)/)g ,ubng5lc qvev3sn2hrough 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 are connected in theodf 6/mxzf5 70iwnt/ m electrical circuit shown in the accompanying figure. Bulb M burns out. Whichfdo 5/fx/i w6z0nm7t m 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)2tnsu 4cj5gl , and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which oft 52jc)4 snlgu 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 ligh.+*u;pi9. zy vr z/pyo 4u7jour(rqg+ r4iljlt bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuitllg / 4r4o.u yj;9(qo*r7+u i+rjyz izv.ppur 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 bu3o(uh/ aii8edsktb , +hp75wxlbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt batteryk,wx ep+5hao duh7 bi3i8t/s ( 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 hasz5p u1q6f6s9o,m w-cpkg cr8i an ideal ammeter with zero 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 g5,q61swpuocrk9 -6zi fm cp 8at 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 negligidjh;fd cc2bsvd .vw((:)bbi5ble 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 circuit brid5v(bb b;h:. wjdcvfc 2sd) (ighten?

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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 b9rktum5a;rmc4bh83+ ;d1v/s ms v hca shorting wire (no resistance) connects the points labeled A and B, which of vh5r; m3 bmrs/4c1tb +vd9aksu m;ch8the 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 connected as shosn;iai:fi 4 axc ):f-ta26: xav(xqeswn. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other bulb(s) alsi-:2 f ( fsqxia6aa:4sxit)e:c;nav x o 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 into agzs17a 1u cmi/s7fua 1 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, aside from bulb #5, which of the other bulbs brighteg1u mac7aif/1s7s 1uz n?

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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 rdbvo e /q+rj-ep+dqjq .9+w.oesistance, the battery is ideal, and all wires have no resistance. Which one of the followingej+q9+dq oeb.+jw v/o-pdq .r 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 fogs6t(l g2 dsw:ur lightbulbs have identical 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 magnitudegtgl6ds: ws(2 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 m/ydi )t32 do2odji 1phas 4 identical light bulbs connected to an ideal battery. If bulb #2 were remov2dm 1ooi2ydjp/i3)td ed 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 will nog ( igt/m*u7uqa eq(l -dkil8/t light? mtuq/lkd-gig(a u e87i*/l q(

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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 5qa 9b;kyt3ydtf)f ;n j:1jy kswitch in t yqfn) y3 9jjk:1tta5bd;;fykhe 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 v-3( /lr zjnnz1 +mt :h97 yeyqzw1awdfour light bulbs have identical resistance, all wires have zel wjy 1d1y/nz 73r+qeat-z(hvz 9:mwnro 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 tb7 pzt3*v fa0ab kj3,s c*zl)ohe same resistance. The battery and wires have no resistance. What i03 jf)a ask bp,cozb *vlt37*zs 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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