With relevant logic diagram and truth table explain the working of a two input EX-OR gate.

Ans. 2-Input EX-OR Gate: An EX-OR or Exclusive gate recognizes words that have an odd no. of ones.  Fig.(1) demonstrates the logic diagram of an EX-OR gate and Fig.(2) demonstrates the symbol of an EX-OR Gate. The upper AND gate provides an output A B and the lower AND gate provides an output A B.

Thus, the output equation be as Y = A B + A B = A EX-OR B = A ⊕ B
Whether both A and B are low, the output is low.  If either A or B but not both are high and the
other is low therefore the output is high.  If A and B both are high, output is low.  Therefore the output is 1 while A and B are dissimilar. Table (A) illustrates the Truth Table for EX-OR gate.