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Which phenomenon reduces generator output when inductive load increases?

A)Armature reaction reduces air gap
B)Stator slots generate cogging torque
C)Eddy currents heat rotor laminations
D)Magnetic hysteresis increases core saturation

💡 Explanation

Armature reaction weakens the main magnetic field, because the armature current generates its own magnetic field opposing the main field; therefore, output voltage drops, rather than other inefficiencies or effects affecting torque.

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