What is the minimum number of two input NAND gates used to perform the function of two input OR gates?

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Mr. Dubey • 52.26K Points
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Q. What is the minimum number of two input NAND gates used to perform the function of two input OR gates?

(A) one

(B) two

(C) three

(D) four

Correct : Option (C)

Explanation:

 y = a + b. this is the equation of or gate. we require 3 nand gates to create or gate. we can also write,

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