Q. Demagnetisation with reversing DC is more effective than AC because:

(A) DC is more penetrating
(B) Demagnetisation is assisted by the skin effect
(C) DC is more direct
(D) Not true-AC is more effective

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✅ Correct Answer: (A) DC is more penetrating

Published by Mr. Dubey ⭐ 111.54K Points at 21-Sep-2023 07:19 pm in Non Destructive Testing and Evaluation

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