Question

A truth table is given below. Which of the following has this type of truth table ?

A	0	1	0	1
B	0	0	1	1
Y	1	0	0	0

• A. XOR gate
• B. NOR gate
• C. AND gate
• D. OR gate

Answer 1

Answer: (B)

NOR gate

In NOR: $\overline{Y}=\overline{A+B}$

i.e., $\overline{0+0}=\overline{0}=1;$
$\overline{1+0}=\overline{1}=0$
$\overline{0+1}=\overline{1}=0;$
$\overline{1+1}=0$