MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

DIGITAL LOGIC

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In Boolean algebra A.A is equal to
A
A
B
C
2A
D
1
Explanation: 

Detailed explanation-1: -In Boolean algebra, A.A = A, where A is a variable having value either 1 or 0. Logical AND operation means Y = A.B i.e. A AND B = A Intersection B. It results in 1, if and only if all the inputs are 1.

Detailed explanation-2: -Ā + A should always be equal to 1.

Detailed explanation-3: -Explanation: The expression for Absorption Law is given by: A+AB = A.

Detailed explanation-4: -Aˉ+A should always be equal to one as addition of quantity like 1 to 0 or 0 to 1 always gives 1.

There is 1 question to complete.