What is the name of the device that works in...

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Question 1 of 2066636eed28f7522a1c51d810

What is the name of the device that works in conjunction with an automatic voltage regulator and is used as the source of magnetizing direct current delivered to the rotating field of an AC generator?

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Question 1 of 20

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🔍 Key Concepts

• Automatic Voltage Regulator (AVR) and how it controls generator output voltage • Parts of an AC generator: stator (armature), rotor (field), and how the field is energized • Function of an exciter versus a governor in generator systems

💭 Think About

• Which device in a generator system actually supplies DC current to the rotating field windings so that AC can be generated in the stator? • Among the choices, which component is mainly associated with speed control rather than voltage control or field current? • Which term describes the overall AC machine itself, and which term is specifically a smaller device that feeds current to its field?

✅ Before You Answer

• Identify which option is directly linked to providing magnetizing DC current to the field windings • Eliminate the choice that refers to speed control of the prime mover (engine/turbine), not field current • Eliminate the choice that is simply another name for the AC generator as a whole, not a separate device feeding it

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