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Write the Truth Table for a Nand Gate Connected as Given in Fig. 14.45. Hence Identify the Exact Logic Operation Carried Out by this Circuit - Physics

Write the truth table for a NAND gate connected as given in Fig. 14.45.

Hence identify the exact logic operation carried out by this circuit

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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) = barA + barA = barA`  ...(i)

The truth table for equation (i) can be drawn as:

A Y`(=barA)`
0 1
1 0

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

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NCERT Class 12 Physics Textbook
Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits
Q 16 | Page 511
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