Question

The truth table for the given logic circuit is

• A.

  A	B	Y
  0	0	0
  0	1	1
  1	0	1
  1	1	0

• B.

  A	B	Y
  0	0	1
  0	1	1
  1	0	1
  1	1	0

• C.

  A	B	Y
  0	0	0
  0	1	0
  1	0	0
  1	1	1

• D.

  A	B	Y
  0	0	1
  0	1	0
  1	0	0
  1	1	0

Answer 1

Answer: (A)

The given logic circuit can be redrawn as,

So, from the above expression (boolean expression)of Y the truth table is shown below,

A	B	$\bar{A}$	$\bar{B}$	$A.\bar{B}$	$\bar{A}.B$	$Y$
0	0	1	1	0	0	0
0	1	1	0	0	1	1
1	0	0	1	1	0	1
1	1	0	0	0	0	0