A wire carrying an electric current exerts magnetic forces, and these forces act back on the wire itself.
A wire carrying an electric current exerts magnetic forces, and these forces act back on the wire itself.
载流导线产生磁力，磁力反过来又作用于导线本身。
A wire carrying an electric current exerts magnetic forces, and these forces act back on the wire itself.
载流导线产生磁力，磁力反过来又作用于导线本身。