嚙罵嚙課迎蕭嚙緲
2009-1-2 17:20
嚙線嚙踝蕭
嚙罵嚙課迎蕭嚙緲
嚙瘢嚙範
When a nichrome wire of length L and diameter d is connected to a dry cell, the current flowing through the wire is 0.6A. If another nichrome wire of length 3L and diameter 2d is connected to the same cell, what will be the current flowing throuh wire?
A. 0.3A
B. 0.8A
C. 1.2A
D. 1.8A
嚙瘢嚙緘嚙諉蛛蕭嚙論係B?
嚙踝蕭
A series of 20 light bulbs each has a rating of "11V, 4w" is connected to a 220V power supply. One of the bulbs burns out. Kenneth replaces it with a new bulb, which is also marked 4W. But the new bulb appears dimmer than the other bulbs. Which of the following statements are correct?
(1) The resistence of the news bulb is lower than that of the other bulbs.
(2) The voltage across the new bulb is less than that across eact of the other bulbs.
(3) The new bulb is designed to work at a low voltage.
A. (1) and (2)
B. (1) and (3)
C. (2) and (3)
D. (1), (2) and (3)
嚙瘢嚙緘嚙諉蛛蕭嚙論係D?
嚙踝蕭嚙諉殷蕭:)
[[i] 嚙踝蕭嚙踝蕭嚙諒恬蕭嚙� 嚙線嚙踝蕭 嚙踝蕭 2009-1-4 14:12 嚙編嚙踝蕭 [/i]]
2009-1-2 17:52
嚙緘嚙窮
[color=White]Marking睇嚙踝蕭嚙踝蕭[/color]
嚙磋嚙踝蕭嚙瘩嚙緘嚙緘
2009-1-2 17:58
嚙線嚙踝蕭
[quote]嚙趣帖嚙踝蕭 [i]嚙緘嚙窮[/i] 嚙踝蕭 2009-1-2 17:52 嚙緻嚙踝蕭
Marking睇嚙踝蕭嚙踝蕭
嚙磋嚙踝蕭嚙瘩嚙緘嚙緘 [/quote]
嚙誹果嚙踝蕭嚙磐嚙褒校借番嚙踝蕭嚙踝蕭嚙踝蕭嚙諸考書既MC嚙練嚙踝蕭
嚙踝蕭嚙磐嚙踝蕭嚙踝蕭嚙瘢嚙諸伐蕭solution嚙踝蕭H嚙踝蕭_嚙踝蕭
嚙課以嚙瞇step睇
2009-1-2 23:20
m11
嚙豌鳴蕭嚙踝蕭1嚙踝蕭out c?
嚙踝蕭2嚙踝蕭嚙踝蕭嚙踝蕭⑺嚙�
2009-1-3 10:23
嚙緘嚙窮
[quote]嚙趣帖嚙踝蕭 [i]m11[/i] 嚙踝蕭 2009-1-2 23:20 嚙緻嚙踝蕭
嚙豌鳴蕭嚙踝蕭1嚙踝蕭out c?
嚙踝蕭2嚙踝蕭嚙踝蕭嚙踝蕭⑺嚙� [/quote]
嚙踝蕭嚙褒得嚙誹計嚙踝蕭嚙踝蕭嚙�:1332 :1332
2009-1-4 14:10
嚙線嚙踝蕭
嚙稷嚙稻 #4 m11 嚙踝蕭嚙踝蕭嚙締
嚙瑾嚙緩嚙瞇out
2009-1-4 14:13
嚙線嚙踝蕭
嚙踝蕭嚙踝蕭嚙踝蕭嚙諉綽蕭Y嚙諸剁蕭
嚙踝蕭嚙盤嚙踝蕭嚙踝蕭嚙諉晒剁蕭嚙�