a. The diagrams below represents an NMOS connected to an output capacitor. The capacitor is charged from an initial 0V to VDD (5 V). i. Write an equation for the slope of the curve (terms of current and voltage). ii. Write an equation for the slope of the curve (terms of Rn). iii. Calculate Rn (W = 10, L = 2, VDD = 5 V, VTHN = 0.8 V & KPn = 120 uA/V2)