Chrome，
QQ浏览器
-
-
-
-
-
-
-
-
-
-
-
-
-
![[初中物理]一口气拿下《电与磁》所有考点（中集）！彻底搞懂安培定则/电磁铁/电磁继电器](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F01bebcf87f3548cad88dcc3b314e4c70e2004c4a.jpg%40672w_378h_1c_%21web-search-common-cover)
-
-
-
-
-
-
-
-
播放：0 时间：2025-08-15简介： -
-
![[江老师物理课堂]第3节 电磁铁 电磁继电器](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F9fd01e680f6557be56e3908dbea7b5ce450da6ba.png%40672w_378h_1c_%21web-search-common-cover)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
![[初中物理]一口气拿下《电与磁》所有考点（中集）！彻底搞懂安培定则/电磁铁/电磁继电器](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F01bebcf87f3548cad88dcc3b314e4c70e2004c4a.jpg%40672w_378h_1c_%21web-search-common-cover)
![[江老师物理课堂]第3节 电磁铁 电磁继电器](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F9fd01e680f6557be56e3908dbea7b5ce450da6ba.png%40672w_378h_1c_%21web-search-common-cover)
.