JEE PYQ: Communication System Question 16
Question 16 - 2021 (25 Feb 2021 Shift 2)
The truth table for the following logic circuit is:
(1) A=0,B=0,Y=1; A=0,B=1,Y=0; A=1,B=0,Y=1; A=1,B=1,Y=1
(2) A=0,B=0,Y=0; A=0,B=1,Y=0; A=1,B=0,Y=1; A=1,B=1,Y=1
(3) A=0,B=0,Y=0; A=0,B=1,Y=1; A=1,B=0,Y=0; A=1,B=1,Y=1
(4) A=0,B=0,Y=1; A=0,B=1,Y=0; A=1,B=0,Y=0; A=1,B=1,Y=1
Show Answer
Answer: (4)
Solution
If $A = B = 0$ then output $y = 1$. If $A = B = 1$ then output $y = 1$. Truth table matches option (4).