Question

In the digital circuit shown in the figure, for the given inputs the P and Q values are :

(1) \(P = 1 , Q= 1\)

(2) \(P = 0, Q= 0\)

(3) \(P = 0 , Q= 1\)

(4) \(P= 1 , Q= 0\)

Answer 1

Correct option is : (2) \(P = 0, Q = 0\) 

\(P = \overline{AB} (\bar A+ \bar B) \Rightarrow 0\)

\(Q = \overline{(\bar A + \bar B) + AB} = 0\)