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A quantity X is given by $\varepsilon_{0}L(\Delta V/\Delta t)$ where $\varepsilon_{0}$ is the permittivity of the free space, L is a 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
Explanation
Dimensionally $\varepsilon_{0}L = C$ where C = capacitance Now the given expression reduces to $C\Delta V/\Delta t$. Dimensionally $C\Delta V = q$ where q is charge. Again the given expression reduces to $q/\Delta t$. Dimensionally $q/\Delta t = I$ where I is current