  Using holography we have studied thermal electric field quench for infinite
and finite t'Hooft coupling constant. The set-up we consider here is D7-brane
embedded in ($\alpha'$ corrected) AdS-black hole background. It is well-known
that due to a time-dependent electric field on the probe brane, a
time-dependent current will be produced and it will finally relax to its
equilibrium value. We have studied the effect of different parameters of the
system on equilibration time. As the most important results, we have observed a
universal behaviour in the rescaled equilibration time in the very fast quench
regime for different values of the temperature and $\alpha'$ correction
parameter. It seems that in the slow quench regime the system behaves
adiabatically. We have also observed that the equilibration time decreases in
finite t'Hooft coupling limit.
