Red Seal Electrician Practice
TransformersQuestion 1087 of 1506

Which description fits a step-up transformer?

  1. The primary winding has more turns than the secondary winding.
  2. The secondary winding has more turns than the primary winding.
  3. Both windings have the same number of turns.
  4. The secondary winding has no connection to the core.
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Correct answer: The secondary winding has more turns than the primary winding.

A step-up unit raises the voltage from primary to secondary. This needs more secondary turns.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 10.2: Step-up and Step-down Transformers

Practice transformers

Questions last reviewed: 18 October 2026