MCQ
How many $NAND $ gates are used to form an $AND$  gate
  • A
    $1$
  • $2$
  • C
    $3$
  • D
    $4$

Answer

Correct option: B.
$2$
b
(b)Two $ ‘NAND’$  gates are required as follows
$Y = \overline {\overline {AB} .\overline {AB} } = AB$

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