The output voltage of a generator is usually controlled by the amount of _____.

A) field excitation current
B) input voltage
C) input torque
D) armature excitation current

Field Excitation

The process of applying an external current to the field winding of a generator or motor to produce the necessary magnetic field for operation.

Input Torque

The torque applied to a system or component, often measured to understand the mechanical power required to operate a device or machinery.

Armature Excitation

The process of applying voltage to the armature winding of a generator or motor, which induces magnetic fields and enables motion or power generation.