he retentivity (a property) of material is useful for the construction of________?

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2012Electrical EngineeringMedium

Anon-magnetic substances

Btransformers

Celectromagnets

Dpermanent magnets

Correct answer

D. permanent magnets

Explanation

The correct answer is permanent magnets.

he retentivity (a property) of material is useful for the construction of________? - Answer and Explanation | Academy of Pakistan