Choose the logic operation carried out by the following current: |
OR Gate AND Gate NAND Gate NOR Gate |
AND Gate |
The correct answer is Option (2) → AND Gate Each of the first two gates is a NOR gate whose inputs are tied together. For the upper gate: A NOR A = (A + A)' = A' For the lower gate: B NOR B = (B + B)' = B' Thus the outputs of the first two gates are A' and B' These are fed into the final NOR gate, so Y = (A' + B')' Using De Morgan’s law (A' + B')' = A · B Y = A · B Hence, the circuit represents an AND Gate. |