AP EAMCET · PHYSICS · Semiconductors
When three NAND logic gates are connected as shown in the figure, then the logic gate equivalent to the circuit is
- A NOT
- B AND
- C OR
- D NOR
Answer & Solution
Correct Answer
(C) OR
Step-by-step Solution
Detailed explanation
Output of first NAND gate: \(Y_1 = \overline{A \cdot A} = \overline{A}\) Output of second NAND gate: \(Y_2 = \overline{B \cdot B} = \overline{B}\) Output of third NAND gate: \(Y = \overline{Y_1 \cdot Y_2} = \overline{\overline{A} \cdot \overline{B}}\) Using De Morgan's Theorem:…
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