M

Mr. Dubey • 53.33K Points
Coach

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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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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