In the circuit below, delay of the EXOR and AND Logic gates are 20 ?s and 10 ?s

CuriousTab

Home Aptitude

Question
In the circuit below, delay of the EXOR and AND

Logic gates are 20 ?s and 10 ?s respectively, then the wave y^' and y (with initial condition y = 1) will be :
Options
A.
B.
C.
D.

Correct Answer

Explanation

Since y is at logic '1' initially, y' must be at logic '1'.

Also, one input of the EXOR gate is tied to zero therefore 'f' will be directly transferred to the output.

The logic gates will introduce gate delays which will lead to the answer .