The synchronous reactance of a 500 V, 50 kVA alternator having an effective resistance of 0.2 Ω, if an excitation current of 10 A produces 200 A armature current on short circuit and an emf of 450 Volts on open circuit is

The synchronous reactance of a 500 V, 50 kVA alternator having an effe

1.	The synchronous reactance of a 500 V, 50 kVA alternator having an effective resistance of 0.2 Ω, if an excitation current of 10 A produces 200 A armature current on short circuit and an emf of 450 Volts on open circuit is
A.	2.6 Ω
B.	5.2 Ω
C.	2.24 Ω
D.	4.5 Ω
Answer» D. 4.5 Ω