  We investigate the motion of a sedimenting spherical drop in the presence of
an applied uniform electric field in an otherwise arbitrary direction in the
limit of low surface charge convection. We analytically solve the electric
potential in and around the leaky dielectric drop, and solve for the Stokesian
velocity and pressure fields. We obtain the drop velocity through perturbations
in powers of the electric Reynolds number which signifies the importance of the
charge relaxation time scale as compared to the convective time scale. We show
that in the presence of electric field either in the sedimenting direction or
orthogonal to it, there is a change in the drop velocity only in the direction
of sedimentation due to an asymmetric charge distribution in the same
direction. However, in the presence of an electric field applied in both the
directions, and depending on the permittivities and conductivities of the two
fluids, we obtain a non-intuitive lateral migration of drop in addition to the
buoyancy driven sedimentation. These dynamical features can be effectively used
for manipulating drops in a controlled electro-fluidic environment.
