The correct formula for Synchronous Speed in Electrical Motors

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The correct formula for Synchronous Speed in Electrical Motors:

  1. ηm = 120 * fe * P
  2. ηm = 120 * fe / P
  3. ηm = fe * P / 120
  4. ηm = 120 * P / fe

Correct answer: 2. ηm = 120 * fe / P

Formula for Synchronous Speed:

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