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Solution


Q.

For the following logic circuit, the truth table is                 [2023]
1  
2  
3  
4  

Ans.

(4)

Here, NAND gate is followed by two NOT gates.

By using A = 0, B = 0, we get Y = 0

A = 0, B = 1, Y = 1

A = 1, B = 0, Y = 1

A = 1, B = 1, Y = 1

This corresponds to OR gate.