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Combinational Logic Analysis

Q1: How many 2-input NOR gates does it take to produce a 2-input NAND gate?

A 1

B 2

C 3

D 4

ANS:D - 4

Demorgans law: (AB)'=A'+B'
(A+B)'=A'.B'.

SUPPOSE CONSIDER INPUTS ARE INVERTED THEN 2 NOR GATES ARE ENOUGH OTHERWISE 4 NOR GATES.



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