To get an (OR) gate from a (NAND) gate, we need | Physics | SolveeIt

Question

To get an $OR$ gate from a $NAND$ gate, we need

Only two NAND gates

Two NOT gates obtained from NAND gates and one NAND gate

Four NAND gates and two AND gates obtained from NAND gates

None of the above

Answer

Two NOT gates obtained from NAND gates and one NAND gate

Explanation

Solution

To obtain OR gate from NAND gates we will use two NOT gates obtained from NAND gates and one NAND gate as shown in adjoining figure. Boolean expression is

$Y=\overline{\bar{A} \cdot \bar{B}}=\overline{\bar{A}}+\overline{\bar{B}}=A+B$
Which is of OR gate.

Physics Question on Semiconductor electronics: materials, devices and simple circuits

Solution