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→ therockox: 電流方向不一樣 10/31 18:40
→ therockox: 看太快看成電容=.= 10/31 18:42
→ therockox: 放電時電感留出的電流跟原本的電流一樣? 10/31 18:43
→ therockox: 方向 10/31 18:44
推 therockox: 放電時,電感極性會變,所以我也覺得是-20V 10/31 19:10
→ alan3340: VL沒標極性,個人覺得 ±20V 都對 10/31 19:32