A) only if both inputs are zero
B) if either or both inputs are 1
C) only if both inputs are 1
D) if either input is zero
Correct Answer: B
Solution :
OR gate has two inputs A and B and a output Y. It follows a logic operation represented by '+'. Thus, its Boolean expression is \[A+B=Y\] The truth table of OR gate is| A | B | Y |
| 0 0 1 1 | 0 1 0 1 | 0 1 1 1 |
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