Three Phase AC Induction Motor - Locked Rotor and Phase Drop Questions
No. The field coils are coupled to the rotor and the combination looks like a transformer with a shorted secondary. The characteristics of the rotor will effect this current.

No for the same reason.

The rotor will continue to rotate but you now have an asymmetric rotating field which will lead to rough running and loss of torque. The amount of slip will have a large effect on the current (coupling with the rotor again) and I will not even try to estimate this.


Overall, give the number of variables your best bet would be to measure these values.