  In an earlier pre-print we developed a variant of the point defect model that
corrected a flaw in one of the defect reactions and to be specific reaction 3
of the original point defect model was replaced by reaction 3prime of the
variant. Here we apply the corrected model to find the time evolution of the
passive current density and the barrier layer thickness. Though the functional
forms agree with the forms reported earlier by Macdonald and co-workers, the
composition of the parameters differ significantly. This explains the
experimental success of the flawed model. This semblance is also manifested in
the diagnostics for the current transient involving the time-derivative of the
current density. The present theory will be useful for the correct analysis of
transients which result from switching the potential in the anodic or cathodic
direction from an initial steady state.
