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| 若有安裝色情守門員,可用無界、自由門等軟件瀏覽伊莉。或使用以下網址瀏覽伊莉: http://www.eyny.com:81/index.php 本帖最後由 avontube 於 2010-11-22 01:53 AM 編輯
Q1 and Q2 are not circuit theory. I will pass.
Q3: R is proportional to L/A where L is the length and A is the cross section area.
So, Ra : Rb = 2 : 0.25 Therefore, Rb = 1.25 Ohms
Q4: resistivity is opposite of conductivity. The conductivity is on the amount of electrons (or charged carriers) and their mobility to flow through a cross-section. ... |
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