如果變壓器入面既副線圈(2nd)圈數多過原線圈(primary)圈數 , 係唔係可以升壓?
thx
收錄日期: 2021-04-15 14:39:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080503000051KK01914