  The electrical and Hall conductivities in a uniform magnetic field are
evaluated for an interacting pion gas using the kinetic theory approach within
the ambit of relaxation time approximation (RTA). The in-medium cross sections
vis-a-vis the relaxation time for $\pi\pi$ scattering are obtained using a
one-loop modified thermal propagator for the exchanged $\rho$ and $\sigma$
mesons using thermal field theoretic techniques. For higher values of the
magnetic field, a monotonic increase of the electrical conductivity with the
temperature is observed. However, for a given temperature the conductivity is
found to decrease steadily with magnetic field. The Hall conductivity, at lower
values of the magnetic field, is found to decrease with temperature more
rapidly than the electrical conductivity, whereas at higher values of the
magnetic field, a linear increase is seen. Use of the in-medium scattering
cross-section is found to produce a significant effect on the temperature
dependence of both electrical and Hall conductivities compared to the case
where vacuum cross-section is used.
