105年佐級基本電學大意第22題 - 考試
By Erin
at 2018-10-29T17:54
at 2018-10-29T17:54
Table of Contents
題目:
https://i.imgur.com/ge7uHHI.jpg
想法:
電容器增加的能量即為電阻消耗的能量。
故先算充飽時的能量 - 初始狀態的能量
= 1/2*2u*5^2 - 1/2*2u*2^2
= 21uJ
沒這個答案><
請問各位先進,我的觀念哪裡有誤?
謝謝。
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