As I said before, love at first sight is destined, then Ning magnetic core and Ci Huansi must be destined to be destined.
Coil long hair beauty VS iron core contrast attack
"Xiao Ci, can you tighten it a little tighter?"
"Baby, we were born as one, you are my destiny." How can the coil and the iron core be separated.
This article is fictitious and not very scientific. It just quotes some little knowledge about electricity.
(For example, the iron core is a conductor, the coil can be energized, the characteristics of the electromagnet, etc.)
Purpose: Study electricity well and become the king of kings