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Question

The following figure shows a logic gate circuit with inputs A and B and the output Y. The voltage waveform of A, B and Y are as given.
        
The logic gate is

Options

A.NOR gate
B.OR gate
C.AND gate
D.NAND gate

Solution

It is clear from given logic circuit, that out put Y is low when both the inputs are high, otherwise it is high. Thus logic circuit is NAND gate.
          

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