The dimension of quantity $\frac{L}{RCV}$ is
$[A]$
$[{A^2}]$
$[{A^{ - 1}}]$
None of these
The dimension of quantity $\frac{L}{RCV}$ is
$\frac{L}{{RCV}} = \left[ {\frac{L}{R}} \right]\,\,\frac{1}{{CV}} = \frac{T}{Q} = [{A^{ - 1}}]$