MHT CET · Physics · Semiconductors
Combination of NAND gates is shown in the figure. It is equivalent to which gate:
- A NOR gate
- B AND gate
- C OR gate
- D X-OR gate
Answer & Solution
Correct Answer
(C) OR gate
Step-by-step Solution
Detailed explanation
The two NAND gates whose two inputs are joined together behave like NOT gates. The truth table can be written as
We see that the output \(y\) is ' 1 ' if \(A\) or \(B\) or both are ' 1 '. Hence it behaves as OR gate.
We see that the output \(y\) is ' 1 ' if \(A\) or \(B\) or both are ' 1 '. Hence it behaves as OR gate.
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