Consider the two-inputCMOSNORgate of Fig. 14.7 whose transistors are properly sized so that the current-driving capability in each direction is equal to that of a matched inverter. For / Vt / =1 V and VDD =5 V, find the gate threshold in the cases for which (a) input terminal A is connected to ground and (b) the two input terminals are tied together. Neglect the body effect in QPB.