The Correct Relationship between Slip, Synchronous, and Rotor speed of Induction Motor | Induction Motor MCQ#3

The Correct Relationship between Slip, Synchronous, and Rotor speed of Induction Motor is:

1. η_slip = η_syn + η_m
2. η_slip = η_syn – η_m
3. η_slip = 1/(η_syn + η_m)
4. η_slip = 1/(η_syn – η_m)

Correct answer: 2. η_slip = η_syn – η_m

Rotor slip speed or simply slip speed of Induction Motor is defined as the difference between synchronous speed and rotor speed.