  We study physical aspects for a new nonlinear electrodynamics (inverse
electrodynamics). It is shown that this new electrodynamics displays the vacuum
birefringence phenomenon in the presence of external magnetic field, hence we
compute the bending of light. Afterwards we compute the lowest-order
modification to the interaction energy within the framework of the
gauge-invariant but path-dependent variables formalism. Our calculations show
that the interaction energy contains a long-range (${1 \mathord{\left/
{\vphantom {1 {{r^5}}}} \right.\kern-\nulldelimiterspace} {{r^5}}}$-type)
correction to the Coulomb potential.
