消息来源频道

Physics

@physics_tg

频道12,138 位成员公开可见持续更新

Physics channel №1 on Telegram! Buy Ads: @BADitel, @Arseniy495 or https://telega.io/c/physics_tg

成员规模12,138 位成员

在线情况待同步

消息总数3,136 条消息

浏览量总数247,842 次浏览

频道详情频道地址

2023/04/14 11:00

Homemade electromagnet 🧲
Iron core (nail), wire and direct current source (battery D) - when the circuit is closed, the magnet turns on.
Ampere's law: a moving charge (current) creates a magnetic field.