Multiple choice

A NOR gate is ON only when all its inputs are

  1. ON

  2. Positive

  3. High

  4. OFF

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A NOR gate outputs ON (logic 1) only when all inputs are OFF (logic 0). The NOR operation is equivalent to NOT-OR: it outputs 1 only when all inputs are 0, and outputs 0 if any input is 1. This makes it the logical complement of the OR gate.