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Logic Gates - Technical MCQs

Q1:

A NAND gate has:

A LOW inputs and a LOW output

B HIGH inputs and a HIGH output

C LOW inputs and a HIGH output

D None of the these

ANS:C - LOW inputs and a HIGH output

Here if any one of the input is low then the output is low for AND gate.

So NAND gate output is high.

So optionC is correct. A B O/P 0 0 1 0 1 1 1 0 1 1 1 0