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JEE Main 201912 JanuaryMorning Shift

Exam: JEE Main
Year: 2019
Date: 12 January
Shift: Morning Shift
Subject: Physics
Chapter: Semiconductors

JEE Main 2019 · 12 January · Morning Shift · Physics · Semiconductors

The output of the given logic circuit is:

The output of the given logic circuit is:

The output of the given logic circuit is:

Options

A $A\overset{-}{B}$
B $\overset{-}{A}B$
C $AB + \overset{¯}{AB}$
D $A\overset{-}{B} + \overset{-}{A}B$

Correct answer

A. $A\overset{-}{B}$

Step-by-step solution

y = \overset{¯}{( \overset{¯}{A . \overset{¯}{A . B}} ) . ( \overset{¯}{A . B} + B )}

A . \overset{¯}{A . B} + ( A . B ) . \overset{̄}{B}

= A ⋅ \left(\overset{-}{A} + \overset{-}{B}\right)

= A\overset{-}{B}

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