  In this study, we consider motion of the massive and charged Bose gas trapped
in electric and magnetic fields between two parallel plates in the $x-y$ plane
that are separated by a distance $d$ in the $z$ direction. We derive analytical
expression of the grand canonical potential of the quantum particles by using
of Ketterle and van Druten approximation. By evaluating canonical potential, we
obtain Casimir potential and force at the Bose-Einstein condensation
temperature $T_{c}$. We also show that Casimir force oscillates depends on
distance $d$ for fixed parameters.
