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 electrip c k8vdf-*y hck9nf+5cal circuit shown in the accompanying figure. In order of decreasing brig5f*c9y n+ 8-fckv phkdhtness (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, wjy0 s.9 yq)wm qsvf-7ggn0i:and N are connected in the electrical circuit shown in the accompanying diagram. Rank the curreqjwyw90v si7:0sqg.fmy ) -gnnt 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, Lkmfz(p2ou .4 q, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb M burns out. Which of the following statements is2q.4u p mz(ofk 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 b xl-y5;/pczj)ke9fd connected in the electrical circuit sho- 9jdx klf5 y)c/pb;zewn in the accompanying 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, with a resistance of7b hb vu0k3*eci(bgov03k4ta 10 ohms, are connected in a simple electrical ci gbk*(ua7v3hkc 300ev bt4oibrcuit 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 ex *j 4 qwv1cwoq1j7yc,c8ya0oach, with a resistance of 10 ohms, are connected in a simple electric184q1x7,ccwajc 0yowyo *qjv al 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 amme:lzomxv+0 u-yuj92jfter 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 eleu0 jmzluy+jf:o9 x2-vctrical 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 resistance is a(ya8 99t wfwp qoe;*kqdded 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 brightewpa*t(ok9w f 8;q9 yqen?

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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) connecyn*r 0n :fw2nbds, 3zcts the points labeled A and B, which of the numbered lightbulbs become brighten2d s0nzn:yc* wb,rf3 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 connected as shown. All lightbulbs dgqved -ba6a5w9 0i2oxhk19 yare identical. When the switch in the circuit is99xqykd1b ge6hwa5io2 0d av- closed illuminating bulb #4, 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 are connected into a circuit a7o7 qu0t;yvjd+l n*)07x bky zxl7eeos shown. All wires are ideal with no resistance, and the idexetb* nd7 ;z0x7)oluk +e7l0qyv7j oyal 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, thwfj4.+jb ruv l- y*t2se 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 b+y.luj jf 4stb2w*v-r ecome 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 resist) xj 0+bxzpo1mrx),ts ance,the battery is ideal and all wires have no resistance. After the switch, S, in thoxr xt zm)s1,)j0+ bpxe 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:yb qdinjkrfr.i //r1 ;0.vdl to an ideal battery. If bulb #2 were remor/kn:q /0ij. d.byf;1rl vdr ived 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 crsr3ob94p. xw+x) pqk ircuit diagram, which one of the bulbs will not light? bwo+34. p9srxqrkxp )

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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 switchakk5;j;xg * t1nbbiojge*hz9 /,m/af in the circuit then is closed. Comh x9/ *jnbaij1oegbg;k/;5zk,t *fansequently:

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 foxh)0 xysizb-sq k36npy31 8nym7)+ wpj dy9cl ur 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 circuit. Which of the light bulbs will be dimmer after the switch h91y l8bd+ j0ym y7-)wp3y6 nxn)3xpsz iqkcsis 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 ths9 o,g(bi an.oree lightbulbs have the same resistance. The battery and wires have no resistance. What is the proper ranks na(g.,oo bi9ing 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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