Inside a motor ,the turning effect on a coil can be increase by
1.... increase the current ,
2..... increase the no. of turns in the coil,
3.... increase the area of the coil,
give one possible drawback of each of them
收錄日期: 2021-05-03 06:04:57
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071220000051KK01933