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.
(a) Object composed of three layers of two different conductivities, σ1 and σ2 (with respective total thicknesses t1 and t2, such that t1 = t2 or αt = 1), having overall tangential length l, radial thickness T and width w (b) Plot of κ against αt for conductivity ratios of 2, 3 and 10 for the brick shaped object shown in (a).
