英语翻译IN most transformers designed to operate at audio freque

英语翻译
IN most transformers designed to operate at audio frequencies,the core is of a type that provides continuous ferromagnetic path through which flux lines can pass.This type of core makes it possible to obtain a high degree of transformer efficiency because of the resulting high coefficient of coupling and high permeability.Modern power transformers often have a coefficient of coupling of 98 percent or even more.