GATE Electronics and Communications (EC) 2013 Solved Paper

The ac schematic of an NMOS common-source stage is shown in the figure below, where part of the biasing circuits has been omitted for simplicity. For the n – channel MOSFET M, the transsconductance g_m = 1mA/V, and body effect and channel length modulation effect are to be neglected. The lower cutoff frequency in Hz of the circuit is approximately at