A 325-MVA, 26-kV, 60 Hz, three-phase salient pole synchronous generator is observed to operating at a power output of 250-MW and a lagging power factor of 0.89 at a terminal voltage of 26 kV. The generator synchronous reactances are Xd-1.95 and Xg-1.18, both in pu. The generator achieves rated-open-circuit voltage at a field current AFNL 342 A. Calculate (a) the angle δ between the generator terminal voltage and the generated voltage, (b) the magnitude of the generated voltage Eaf in p.u., and (c) the required field current in amperes