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JEE Main202330 Jan 2023Morning ShiftPhysicsSemiconductorsActual

The output waveform of the given logical circuit for the following inputs A and B as shown below, is

Correct answer

3

Step-by-step solution

In the given logical circuit, all logic gates are NAND gate. Here, the inputs A and B are inverted using NOT gate (made using NAND gate), then A ¯ and B ¯ are applied as inputs in other NAND gate. So, A . A = A and B . B = B Output at Y is A . B = A + B . The above boolean expression is for OR gate. Truth table of OR gate is A B Y 0 0 0 0 1 1 1 0 1 1 1 1 The output waveform is shown below.

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