Wiring and componentsQuestion 436 of 1506

In the AWG system, how does the wire diameter change as the gauge number increases?

  1. The diameter becomes larger
  2. The diameter stays the same
  3. The diameter is doubled
  4. The diameter decreases
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Correct answer: The diameter decreases

A larger gauge number means a thinner wire.

Source: Electrical Fundamentals Competency (Industry Training Authority of BC), 9.1: Conductors

Practice wiring and components

Questions last reviewed: 18 October 2026