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Discussion

An AND gate has two inputs A and B and one inhibit input 3, Output is 1 if

  • A.A = 1, B = 1, S = 1
  • B.A = 1, B = 1, S = 0
  • C.A = 1, B = 0, S = 1
  • D.A = 1, B = 0, S = 0

Answer: B

All AND inputs must be 1 and inhibit 0 for output to be 1.

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