JEE PYQ: Semiconductors Question 19
Question 19 - 2020 (04 Sep 2020 Shift 2)
Identify the operation performed by the circuit given below:
(1) NAND
(2) OR
(3) AND
(4) NOT
Show Answer
Answer: (3)
Solution
When two inputs of a NAND gate are shorted, it behaves like a NOT gate. Analyzing the full circuit with truth table shows $y = A \cdot B \cdot C$ — an AND gate.