A synchronous motor runs at what type of power factor at under-excitation?

A synchronous motor runs at what type of power factor at under-excitation?

  1. a) Unity
  2. b) Lagging
  3. c) Leading
  4. d) None of these

From the BREB Assistant General Manager (O&M / E&C) 2021 – Preliminary exam, question 37 of 48.

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