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Exam Questions Papers - Engineering

Q1:

The logic realized by the circuit shown in figure below is

A F = A - C

B F = A + C

C F = B ⊙ C

D F = B ⊕ C

ANS:B - F = A + C

F = A BC + ABC + A B C + ABC = B(AC + AC) + B(AC + AC) B(A ⊕ C) + B(A ⊕ C) (A ⊕ C) (B ⊕ B) A ⊕ C.