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Question
Construct the logic symbol, Boolean expression, circuit diagram and truth table for an OR gate.
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Solution
OR Gate
Logic Symbol:
Boolean expression: Y=A+B
Truth Table of OR gate
A B Y=A+B(OUTPUT) 0 0 0 0 1 1 1 0 1 1 1 1
Circuit Diagram of OR gate using diode.
Logic Symbol:
Boolean expression: Y=A+B
Truth Table of OR gate
Truth Table of OR gate
| A | B | Y=A+B(OUTPUT) |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |
Circuit Diagram of OR gate using diode.
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