railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Single Phase Motor and Special Machines Single Phase Motor Types
What would be the backward field slip of a single phase induction motor running at N r.p.m, when it is given that is synchronous speed is Ns and slip with respect to forward field is s?
1
s
2
-s
3
1 - s
4
2 - s