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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.
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 |
संबंधित प्रश्न
Write the truth table for circuit given in figure below consisting of NOR gates and identify the logic operation (OR, AND, NOT) which this circuit is performing.
(Hint: A = 0, B = 1 then A and B inputs of second NOR gate will be 0 and hence Y=1. Similarly work out the values of Y for other combinations of A and B. Compare with the truth table of OR, AND, NOT gates and find the correct one.)
Write the truth table for the circuits given in following figure consisting of NOR gates only. Identify the logic operations (OR, AND, NOT) performed by the two circuits.
(a)
(b)
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