  We study a concentration and homogenization problem modelling electrical
conduction in a composite material. The novelty of the problem is due to the
specific scaling of the physical quantities characterizing the dielectric
component of the composite. This leads to the appearance of a peculiar
displacement current governed by a Laplace-Beltrami pseudo-parabolic equation.
This pseudo-parabolic character is present also in the homogenized equation,
which is obtained by the unfolding technique.
