A step-down transformer is used on a 2.2 kV line to deliver 110 V. How many turns are on the primary

JAMB Physics 2023 60 views
Source: JAMB · 2023

A step-down transformer is used on a 2.2 kV line to deliver 110 V. How many turns are on the primary windings if the secondary has 25 turns?

  1. 20
  2. 200
  3. 500 ✓
  4. 250

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