A quantity X is given by $\epsilon_0 l \frac{\Delta V}{\Delta t}$, where $\epsilon_0$ is the permittivity of fee space, $l$ is length, $\Delta V$ is a potential difference and $\Delta t$ is a time interval. The dimensional formula for X is the same as that of :

Current

$x=\varepsilon_0 l \frac{\Delta v}{\Delta t}=\frac{C^2}{M^2 \times N} M \frac{(N \times M)}{\sec } C=\frac{C}{\sec}$ = That is unit of current