97年鐵路電工機械 - 考試
By Kristin
at 2013-03-16T21:17
at 2013-03-16T21:17
Table of Contents
97這年蠻多題不會的 要麻煩高手解答了
先付上題目
http://www.public.com.tw/2002/exam2/course/00080003000400020001.pdf
25.28.31.32.34.35.40
我說一些我目前的想法(可能有錯)
我是看高職的教科書
25.我想是(C) 可是答案(B) 不是跟電壓平方成正比,與頻率成反比嗎?
28.功率因素.Ra題目沒給 我不知道怎麼算了Q_Q
31.I=P/V I平方*Ra 很像沒答案
32.34.35 沒看過這類型題目SORRY
40.我求出Xc=10 10/(2*3.14)答案有誤差
問題有點多
麻煩各位高手幫忙
謝謝
--
先付上題目
http://www.public.com.tw/2002/exam2/course/00080003000400020001.pdf
25.28.31.32.34.35.40
我說一些我目前的想法(可能有錯)
我是看高職的教科書
25.我想是(C) 可是答案(B) 不是跟電壓平方成正比,與頻率成反比嗎?
28.功率因素.Ra題目沒給 我不知道怎麼算了Q_Q
31.I=P/V I平方*Ra 很像沒答案
32.34.35 沒看過這類型題目SORRY
40.我求出Xc=10 10/(2*3.14)答案有誤差
問題有點多
麻煩各位高手幫忙
謝謝
--
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考試
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