JEE Main & Advanced
Physics
Semiconducting Devices
Question Bank
Digital Electronics
question_answer
Which logic gate is represented by the following combination of logic gates [AIIMS 2004]
A) OR
B) NAND
C) AND
D) NOR
Correct Answer:
C
Solution :
\[Y=\overline{\bar{A}+\bar{B}}\] According to De morgan?s theorem \[Y=\overline{\bar{A}+\bar{B}}=\bar{\bar{A}}.\bar{\bar{B}}=A.B\] This is the output equation of ?AND? gate.