A time varying potential difference is applied between the plates of a parallel plate capacitor of capacitance 2.5 μ F. The dielectric constant of…

A time varying potential difference is applied between the plates of a parallel plate capacitor of capacitance $\displaystyle 2.5 \mu \mathrm{~F}$. The dielectric constant of the medium between the capacitor plates is 1. It produces an instantaneous displacement current of $\displaystyle 0.25$ mA in the intervening space between the capacitor plates, the magnitude of the rate of change of the potential difference will be $\displaystyle \_\_\_\_$ $\displaystyle \mathrm{Vs}^{-1}$.