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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 ⊕ BWhether both A and B are low, the output is low. If either A or B but not both are high and theother 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.
A
B
Y ( A B + A B )
0
1
Add 20 and (-15) using 2's complement ? Ans. Addition of 20 and (-15) by using 2's complement as (20) 10 = 1 0 1 0 0 (16
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