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Write the truth table for a NAND gate as...

Write the truth table for a NAND gate as given in Fig.9. Hence identify the exact logic operation carried out by this circuit.

Text Solution

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A acts as the two inputs of the NAND gate and Y is the output, as shown in the following figure.
Hence, the output can be written as:
`Y=bar(A.A)=bar(A)+bar(A)=bar(A)`
The truth table for equation (i) can be drawn as:

This circuit functions as a NOT gate. The symbol for this logic circuit is shown as:
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