NEET Solved Paper 2019 Question 22
Question: The correct Boolean operation represented by the circuit diagram drawn is: [NEET 5-5-2019]
Options:
A) NAND
B) NOR
C) AND
D) OR
Show Answer
Answer:
Correct Answer: A
Solution:
- LED glows when Both switches are OFF if are one is ON or both ON, LED will be short and becomes OFF
A B Y(LED) 0 OFF 0 (OFF) 1 (ON) 0 (OFF) 1 (ON) 1 (ON) 1 (ON) 0 (OFF) 1 (ON) 1 (ON) 1 (ON) 0 (OFF)
$ y=\text{(}\overline{AB}\text{)}=NAND $
