Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Relationship of geometric permeability μgeo and measured permeability μL in a 60 × 125 × 90 (100) rectangular core with two air gaps. The total air gap length lg was taken equal to ls or (ls + lo), where ls is the spacer thickness, and lo is the residual air gap length. The dashed line corresponds to equation μgeo= μL.
