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To get an output Y = 1 from the circuit shown below, the input must be

 

Option: 1

a = 1, b = 0, c = 0


Option: 2

= 0, b = 1, c = 0


Option: 3

a = 0, b = 0, c = 1


Option: 4

a = 1, b = 0, = 1


Answers (1)

best_answer

 

 

 To get an output of 1, from the NAND gate

both input should be 1. 

 

\therefore     C = 1

Now Resultant of a & b should be 1.

\left.\begin{matrix} \therefore\ a=1, b=0 \\ or \\ a=0, b=1\\ or\\ a=1, b=1\\ \end{matrix}\right\} and \ C= 1

So the Correct option is 4.

 

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manish

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