Q.

The logic performed by the circuit shown in figure is equivalent to                   [2023]

1 AND  
2 NAND  
3 OR  
4 NOR  

Ans.

(1)

The truth table for the given circuit will be:

a b output
0 0 0
0 1 0
1 0 0
1 1 1

Hence it will be equivalent to AND gate.