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Exam Questions Papers

Q1:

Consider the circuit shown below of 2 : 1 MUX is given by the function g = ac + bc

Then f is :

A X ⊕ Y

B
XY + EXY

C
XE + XY

D none of these

ANS:B -

XY + EXY

Since g = ac + bc i.e. when c = 0, g = b and c = 1, g = a Now we evaluate f = (E)(X) + (0)(X) = EX f = (X)(Y) + (EX)(Y) = XY + EXY.



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