  Electromagnetic current-current correlators in pionic and nucleonic medium
have been evaluated in the static limit to obtain electrical conductivities for
pion and nucleon components respectively, where former decreases and latter one
increases with the variation of temperature $T$ and baryon chemical potential
$\mu_N$. Therefore, total electrical conductivity of pion and nucleon system
exhibits a valley structure in the $T$-$\mu_N$ plane. To get non-divergent and
finite values of correlators, finite thermal widths of medium constituents,
pion and nucleon have been considered, where these thermal widths have been
determined from the in-medium scattering probabilities of pion and nucleon with
other mesonic and baryonic resonances, based on effective hadronic model. At
$\mu_N=0$, the results of present work are more or less agrees with the results
of earlier works and its finite $\mu_N$ extension show a decreasing nature of
electrical conductivity for hadronic medium during spanning from freeze out
line to quark-hadron transition line in $T$-$\mu_N$ plane.
