1021台電雇員(基本電學) - 考試

By Necoo
at 2014-03-31T01:38
at 2014-03-31T01:38
Table of Contents
[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處
考題:http://ppt.cc/JC8N
答案:5
想法:令R1=4R R2=R
Pr2=(12.5V/5R)^2*R
=> R=0.8
=> R1=4R=0.8*4=3.2 為何解答為5呢?@@
--
考題:http://ppt.cc/JC8N
答案:5
想法:令R1=4R R2=R
Pr2=(12.5V/5R)^2*R
=> R=0.8
=> R1=4R=0.8*4=3.2 為何解答為5呢?@@
--
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