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प्रश्न
(i) Write the truth tables of the logic gates marked P and Q in the given circuit.
(ii) Write the truth table for the circuit.
आकृति
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उत्तर
(i) P and Q are the NOT and OR gates respectively. The truth table for them is drawn below:
| NOT | OR | |||
|---|---|---|---|---|
| Input | Output | Input 1 | Input 2 | Output |
| 1 | 0 | 1 | 1 | 1 |
| 0 | 1 | 0 | 0 | 0 |
| 1 | 0 | 1 | ||
| 0 | 1 | 1 | ||
(ii) The truth table for the whole network:
| Input -A | Input -B | Output |
|---|---|---|
| 1 | 1 | 1 |
| 0 | 0 | 1 |
| 1 | 0 | 0 |
| 0 | 1 | 1 |
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