Identify the gate and match A , B , Y in the bracket to check.

Identify the gate and match A,B,Y in the bracket to check.

    

  1. OR (A=1, B=1, Y=0)
  2. XOR (A=0, B=0, Y=0)
  3. NOT (A=1, B=1, Y=1)
  4. AND (A=1, B=1, Y=1)

Solution

The output of the first NAND gate

Y'=A·B¯

The output of the second NAND gate

Y=A·B¯·A·B¯¯⇒ Y=A·B¯¯+A·B¯¯⇒ Y=A·B

So, the equivalent circuit will be an AND gate.

AND (A=1, B=1, Y=1)

Asked in: JEE Main 2014 (09 Apr Online)

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