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JEE Main 2020 (4 Sep, Shift 2) · Logic Gates

Logic Gates question from JEE Main 2020 (4 Sep, Shift 2)

Q143JEE Main 2020 · 4 SEP · SHIFT 2Medium

Logic Gates

Identify the operation performed by the circuit given below:

Figure

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Answer: (a)

  1. Each NOR with joined inputs acts as NOT, giving Aˉ,Bˉ,Cˉ\bar{A}, \bar{B}, \bar{C}.
  2. Final NOR: Y=Aˉ+Bˉ+Cˉ‾=ABCY = \overline{\bar{A} + \bar{B} + \bar{C}} = ABC.
  3. So the answer is (a) AND.
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