Question

The following truth table corresponds to the logic gate

A 0 0 1 1

B 0 1 0 1

X 0 1 1 1

• A. NAND
• B. OR
• C. AND
• D. XOR

Answer 1

Answer: (B)

OR

Answer 2

For ‘OR’ gate $X = A + B$

i.e. $0 + 0 = 0$, $0 + 1 = 1$, $1 + 0 = 1$, $1 + 1 = 1$