電流磁效應

 國九理化【觀念】電流磁效應
https://www.youtube.com/watch?v=H1UMt71s_M4

電流磁效應【觀念】電流的磁效應

https://www.youtube.com/watch?v=MJg27ge7SkQ

電流磁效應【觀念】載流導線在磁場中所受的磁力
https://www.youtube.com/watch?v=x8WTE8d383s