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The hysteresis loss in soft magnetic materials must be kept ______

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The hysteresis loss in soft magnetic materials must be kept ______

(a) High

(b) Minimum

(c) Zero

(d) Unaltered

This question was posed to me during a job interview.

My question is from Soft and Hard Magnetic Materials topic in section Magnetic & Insulating Materials of Engineering Material & Metallurgy

1 Answer

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The correct answer is (b) Minimum

The explanation is: Soft magnetic materials are used in cases where regular reversal of magnetization path is required. The hysteresis losses in such materials must be kept to a minimum. This is due to a smaller hysteresis area.

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