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NEET 2010 (AIPMT, Prelims) · Logic Gates

Logic Gates question from NEET 2010 (AIPMT, Prelims)

Q172NEET 2010 · AIPMT · PRELIMSMedium

Logic Gates

To get an output Y = 1 in given circuit which of the following input will be correct?

Figure

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Answer: (b)

  1. OR then AND: Y=(A+B)⋅CY = (A + B) \cdot C.
  2. Y = 1 needs C=1C = 1 and A+B=1A + B = 1.
  3. Only (b) has C=1C = 1: Y=(1+0)⋅1=1Y = (1 + 0) \cdot 1 = 1.
  4. So the answer is (b).
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