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Logic Gates

Q1:

From the truth table for a three-input NOR gate, what is the only condition of inputs A, B, and C that will make the output X high?

A A = 1, B = 1, C = 1

B A = 1, B = 0, C = 0

C A = 0, B = 0, C = 1

D A = 0, B = 0, C = 0

ANS:D - A = 0, B = 0, C = 0

Ya its right.

How its possible for this gate.

The (OR) gate of first two input is (0 0) its output for (0).

Otherwise the NAND gate of output is complement of OR gate.

Its reverse process.



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