Digital Electronics

Question: A(A + B) =
[A].

A

[B].

A B

[C].

AB

[D].

AB

Answer: Option C

Explanation:

No answer description available for this question.

Question: A + AB =
[A].

A

[B].

A

[C].

A + B

[D].

A + B

Answer: Option C

Explanation:

No answer description available for this question.

Question: A (A + B) =
[A].

A

[B].

B

[C].

A

[D].

B

Answer: Option A

Explanation:

No answer description available for this question.

Question: Inputs A and B of the given figure are applied to a NAND gate. The output is LOW
[A].

from 0 to 6

[B].

from 0 to 2

[C].

from 0 to 1 and 2 to 3

[D].

from 1 to 2 and 3 to 4

Answer: Option C

Explanation:

NAND gate gives Low output if all inputs are High. For other combinations of inputs, output is High.

Question: In a gate output is Low if and only if all inputs are High. The gate is
[A].

OR

[B].

AND

[C].

NOR

[D].

NAND

Answer: Option D

Explanation:

No answer description available for this question.

Question: For the given truth table, the correct Boolean expression is
[A].

XYZ + X YZ + X Y Z

[B].

X Y Z + XYZ + X YZ

[C].

X Y Z + XYZ + XY Z

[D].

XYZ + XYZ + XY Z

Answer: Option B

Explanation:

No answer description available for this question.

Question: The boolean expression for shaded area in the given figure is
[A].

AB + AC

[B].

ABC + ABC

[C].

ABC + ABC

[D].

None of these

Answer: Option C

Explanation:

No answer description available for this question.