The correct formula for Synchronous Speed in Electrical Motors:
- ηm = 120 * fe * P
- ηm = 120 * fe / P
- ηm = fe * P / 120
- ηm = 120 * P / fe
Correct answer: 2. ηm = 120 * fe / P
Formula for Synchronous Speed:
![](https://electricalengineeringmcq.com/wp-content/uploads/2020/04/synchronous-speed-formula-1024x568.jpg)
The correct formula for Synchronous Speed in Electrical Motors:
Correct answer: 2. ηm = 120 * fe / P
Formula for Synchronous Speed: