Multiple choice

If a logic gate has four inputs, the total number of possible input combinations is

  1. 4

  2. 8

  3. 16

  4. 32
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For a logic gate with n inputs, each input can be either 0 or 1. With 4 inputs, we have 2^4 = 16 possible combinations. This is fundamental to truth table construction - every possible input combination must be listed.

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