Physics · Electrical Machines
Which of the following statements is true regarding the voltage drop/change due to armature reaction for leading power factors in an alternator?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The armature reaction has a magnifying (magnetizing) effect, which tends to increase or maintain terminal voltage, meaning the drop decreases or becomes negative.✓
- 2The armature reaction is purely demagnetizing for leading power factors.
- 3The terminal voltage remains constant irrespective of the power factor.
- 4The terminal voltage decreases significantly with an increase in leading power factor.
Correct answer
The armature reaction has a magnifying (magnetizing) effect, which tends to increase or maintain terminal voltage, meaning the drop decreases or becomes negative.
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