Analog Circuits...

Which of the following is true about the transconductance of a MOSFET in saturation (I_D is the Drain Current)?

The transconductance of an n-channel MOSFET operating in the saturation region is g_m1. If the parameter W/L is doubled with current remaining constant, then the new transconductance g_m2 will be:

The unity gain bandwidth of an n-channel MOSFET with parameters \(K_n=\frac{W\mu _nC_{0x}}{2L}\) (conduction perameter of an n-channel MOSFET)  = 0.25 mA/v², V_TN = 1 V and channel inversion capacitances C_gd = 0.03 pF C_gs = 0.3 pF. Assume the transistor is biased in saturation at V_GSQ = 3 V. The bandwidth in MHz will be ______. (Ignore Miller Effect)