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The output of NOR gate is

  • A.High if all of its inputs are high
  • B.Low if all of its inputs are low
  • C.High if all of its inputs are low
  • D.High if only of its inputs is low

Answer: C

Correct answer: High if all of its inputs are low

NOR is the complement of OR, and OR is 0 only when every input is 0. So NOR is 1 in exactly that one case - all inputs low - and 0 otherwise.

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