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Question 72Asked in BPSC TRE 3.0 (2024) Computer Science Class 11-12

An OR gate has 4 inputs. The number of words in truth table will be _______.

  1. A4
  2. B8
  3. C16
  4. DMore than one of the above
  5. ENone of the above
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Correct answer: (C) 16

Explanation

A truth table with n inputs has 2ⁿ rows, so 4 inputs give 2⁴ = 16 rows.

From BPSC TRE 3.0 (2024) Computer Science Class 11-12 — Previous Year Paper

This is question 72 of BPSC TRE 3.0 (2024) Computer Science Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.