The Correct Statement about DC field current in Induction Motor | Induction Motor MCQ#1

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The Correct Statement about DC field current in Induction Motor:

  1. The external dc field current is always required for excitation
  2. Two external dc fields are required
  3. Multiple external dc fields are required for
  4. No external dc field current is required

Correct answer: 4. No external dc field current is required

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