Dimensional Formula of CR

If \(C\) and \(R\) denote capacitance and resistance, the dimensional formula of \(CR\) is:

[1988]

\(M^0L^0T^1\)

\(M^0L^0T^0\)

\(M^0L^0T^{-1}\)

Not expressible in terms of MLT

The product \(CR\) is the time constant of an RC circuit. Its dimension is time, \(T\), which can be written as \(M^0L^0T^1\).