Q. Which logic gate is represented by the following combination of logic gates?

A) OR
B) NOR
C) AND
D) NAND
Explanation

(c) Output of gate-1,
[image:14_image225.jpeg]
Output of gate-2,
Output of gate 3 $Y_{1} = \overline{A}$
$Y_{2} = \overline{B}$
$Y = \overline{Y_{1} + Y_{2}} = \overline{\overline{A} + \overline{B}} = \overline{\overline{AB}} = AB$
which is the output of AND gate.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.