GATE Electronics and Communications (EC) 2014 Shift 2 Solved Paper

For the n-channel MOS transistor shown in the figure, the threshold voltage V_Th is 0.8 V. Neglect channel length modulation effects. When the drain voltage V_D = 1.6 V, the drain current I_D was found to be 0.5 mA. If V_D is adjusted to be 2 V by changing the values of r and V_DD, the new value of I_D (in mA) is