Question

The following circut represents
(a) OR gate (b) XOR gate
(c) AND gate (d) NAND gate

Answer 1

QUESTION :-

The following circut represents

(a) OR gate (b) XOR gate

(c) AND gate (d) NAND gate

SOLUTION :-

(b) XOR gate

EXPLANATION :-

Substitute all the possible values in place of A and B and form the truth table and then compare the truth table with the truth table of the options given.

Output of upper AND gate = $\sf{\dfrac{}{A}}$B

Output of lower AND gate = A$\sf{\dfrac{}{B} }$

Thus, output of OR gate =  $\sf{\dfrac{}{A}}$B + A$\sf{\dfrac{}{B} }$

→ This is Boolean expression for XOR gate.

The truth table for the above circuit is :-

00-0

01-1

10-1

11-0

Answer 2

$\large\underline\bold{ANSWER \red{\huge{\checkmark}}}$

$\huge{\underline\bold{OPTION:- B \:\: \huge{\red{\checkmark}}}}$

EXPLANATION :-

Substitute all the possible values in place of A and B and form the truth table and then compare the truth table with the truth table of the options given.

Output of upper AND gate = $\sf{\dfrac{}{A}}$B

Output of lower AND gate = A$\sf{\dfrac{}{B} }$

Thus, output of OR gate =  $\sf{\dfrac{}{A}}$B + A$\sf{\dfrac{}{B} }$

→ This is Boolean expression for XOR gate.

The truth table for the above circuit is :-

00-0

01-1

10-1

11-0