The transfer function of the system shown below is
(a) \(\frac{1}{1+\tau s}\)
(b) \(\frac{1}{(1+\tau s)^{2}}\)
(c) \(\frac{\tau s}{1+\tau s}\)
(d) \(\frac{\tau s}{(1+\tau s)^{2}}\)

E,(s) R Cs Amp. gain = 1 t = RC R Cs E (s)