Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 107
109. The following circuit represents
[1999]
(a) OR gate
(b) XOR gate
(c) AND gate
(d) NAND gate
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Answer:
Correct Answer: 109. (b)
Solution:
- (b) Output of upper AND gate $=A \cdot \bar{{}B}$
Output of lower AND gate $=\bar{{}A} \cdot B$
$\therefore$ Output of OR gate, $Y=A \cdot \bar{{}B}+B \cdot \bar{{}A}$
This is Boolean expression for XOR gate.
