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To get an output of 1 from the circuit shown in figure the input must be :

  • Option 1)

    a = 0, b = 1, c = 0

  • Option 2)

    a = 1, b = 0, c = 0

  • Option 3)

    a = 1, b = 0, c = 1

  • Option 4)

    a = 0, b = 0, c = 1

 

Answers (1)

best_answer

As we learnt in

AND Gate -

Y= A\cdot B

- wherein

A and B are input

Y is out put

 

 To get an output of 1, from gate both input should be 1. 

NAND

\therefore     C = 1

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

Correct option is 3.

 


Option 1)

a = 0, b = 1, c = 0

This is an incorrect option.

Option 2)

a = 1, b = 0, c = 0

This is an incorrect option.

Option 3)

a = 1, b = 0, c = 1

This is the correct option.

Option 4)

a = 0, b = 0, c = 1

This is an incorrect option.

Posted by

divya.saini

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