Physics · Electromagnetic Induction
What is the primary purpose of slip rings and brushes in a synchronous machine?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To provide a path for the AC supply to the stator
- 2To reverse the direction of the current in the armature
- 3To change the operational speed of the machine
- 4To provide DC excitation current to the rotor winding✓
Correct answer
To provide DC excitation current to the rotor winding
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