Semiconducting Devices Question 83

Question: Which logic gate is represented by the following combination of logic gates

[AIIMS 2004]

Options:

A) OR

B) NAND

C) AND

D) NOR

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Answer:

Correct Answer: C

Solution:

$ Y=\overline{\bar{A}+\bar{B}} $ .

According to De morgan’s theorem $ Y=\overline{\bar{A}+\bar{B}}=\bar{\bar{A}}.\bar{\bar{B}}=A.B $ .

This is the output equation of AND gate.



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