NEET Physics Semiconductor Electronics Questions Solved


The diagram of a logic circuit is given below. The output F of the circuit is represented by

(a) W(X+Y)
(b) W.(X.Y)
(c) W+(X.Y)
(d) W+(X+Y)

(c) Output of upper OR gate = W + X
Output of lower OR gate = W + Y
Net output F = (W + X) (W + Y)
= WW + WY + XW + XY              (Since WW = W)
= W(1 + Y) + XW + XY               (Since 1 + Y= 1)
= W + XW + XY = W (1 + X) + XY = W + XY

Difficulty Level:

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