Question
How many NAND gates are required to make one NOT gate?
Solution
Only one NAND gate is required to make a NOT gate. If one input of a NAND gate is made permanently high, we get a NOT gate [see figure (a)].
Alternatively, if both the inputs of a NAND gate are tied together, we get a NOT gate. [see figure (b)].
Alternatively, if both the inputs of a NAND gate are tied together, we get a NOT gate. [see figure (b)].
