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AP EAMCET202125 Aug 2021Evening ShiftPhysicsSemiconductorsActual

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

Options

  1. ANOR gate
  2. BOR gate
  3. CAND gate
  4. DNAND gate

Correct answer

D. NAND gate

Step-by-step solution

The truth table for the waveform is given by array |c|c|c|c| 2 - 4 & A & B & Y 2 - 4 t₁-t₂ & 0 & 0 & 1 2 - 4 t₂-t₃ & 0 & 1 & 1 2 - 4 t₃-t₄ & 1 & 0 & 1 2 - 4 t₄-t₅ & 1 & 1 & 0 2 - 4 t₅-t₆ & 0 & 0 & 1 2 - 4 & & & array The expression for the output is Y= A B The truth table of the given logic gate matches with NAND gate.

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