noun
ferrite core
Technical term in electronics and computing; a magnetic core made of ferrite material used in inductors, transformers, and noise suppression.
このケーブルにはフェライトコアが付いていて、ノイズを抑えます。
This cable has a ferrite core attached to suppress noise.
フェライトコアを使
Transformers using ferrite cores are often used in high-frequency circuits.