Draw the output waveform at X, using the given inputs A and B for the logic circuit shown below. Also, identify the logic operation performed by this circuit.

Solution

From the waveform given, we can say that
$Y space equals stack A plus B with bar on top space equals fraction numerator top enclose A. top enclose B over denominator left parenthesis A with bar on top. B with bar on top right parenthesis plus A with bar on top. B with bar on top end fraction space equals top enclose A with bar on top. space top enclose B end enclose space equals space top enclose top enclose A end enclose plus top enclose top enclose B end enclose space equals space A plus B$
which is the Boolean expression of OR.

The output waveform for OR gate is given by,

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Wave Optics

Draw the output waveform at X, using the given inputs A and B for the logic circuit shown below. Also, identify the logic operation performed by this circuit.

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