Q. present. The order of residual magnetism is

  • (A) 2 to 3 per cent
  • (B) 10 to 15 per cent
  • (C) 20 to 25 per cent
  • (D) 50 to 75 per cent
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✅ Correct Answer: (A) 2 to 3 per cent
Explanation: in a dc machine residual magnetism is present and it plays very important role in starting of any dc machine. it’s present because of the previous application on the same motor, it also provides some no-load voltage.

Published by Mr. Dubey ⭐ 109.99K Points at 17-Sep-2023 11:28 am in Electrical Drives and Controls (EDC)

Explanation by: Mr. Dubey
in a dc machine residual magnetism is present and it plays very important role in starting of any dc machine. it’s present because of the previous application on the same motor, it also provides some no-load voltage.

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