基本電學 電容充電 - 考試

By Adele 
at 2016-02-20T15:26
at 2016-02-20T15:26
Table of Contents
http://i.imgur.com/vM0NpBk.jpg 
請問此題該如何理解呢?
33uF x 100v=(33u+Cx)x 75v
 
小弟一開始將S切至B點時看成串聯,不過解答這樣是並聯,請問我哪裡理解錯誤了呢?
為何是C1充滿100V電之後來C1與C2並聯,會使C1電壓降為75V
然後為何左右會相等呢?
 
--
    請問此題該如何理解呢?
33uF x 100v=(33u+Cx)x 75v
小弟一開始將S切至B點時看成串聯,不過解答這樣是並聯,請問我哪裡理解錯誤了呢?
為何是C1充滿100V電之後來C1與C2並聯,會使C1電壓降為75V
然後為何左右會相等呢?
--
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