Question: Calculate the minimum value of the active power in the cylindrical rotor synchronous machine? (Eb represents armature emf, Vt represents terminal voltage, ? represents rotor angle, X represents reactance)
Options
A : Eb×Vt×sin?÷X
B : 0
C : Eb2×Vt×sin?÷X
D : Eb×Vt÷X
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