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MHT CET Medical202622 April 2026Evening ShiftPhysicsSemiconductorsActual

Which of the following gives output 0 in the NAND gate?

Options

  1. AA = 1 , B = 0
  2. BA = 1 , B = 1
  3. CA = 0 , B = 0
  4. DA = 0 , B = 1

Correct answer

B. A = 1 , B = 1

Step-by-step solution

The Boolean expression for a NAND gate is Y = A B . For A = 1 , B = 0 , Y = 1 0 = 0 = 1 For A = 1 , B = 1 , Y = 1 1 = 1 = 0 For A = 0 , B = 0 , Y = 0 0 = 0 = 1 For A = 0 , B = 1 , Y = 0 1 = 0 = 1 The output is 0 when A = 1 and B = 1 . Answer: A = 1 , B = 1

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