A 4-pole, three-phase induction motor is supplied from 50 Hz AC supply and the full-load speed of the motor is 1455 r.p.m. What are the values of slip and frequency of the rotor induced e.m.f. at standstill respectively?
1
0.03 and 15 Hz
2
0.03 and 50 Hz
3
0.06 and 50 Hz
4
0.06 and 15 Hz