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Out of soft iron and steel which has more coercivity, less retentivity.
- iron
- steel
- both are equal
- can't say
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Coercivity is the intensity of the applied magnetic field required to reduce the magnetization of a given material to zero. In other words to coerce the material to surrender its magnetism. Retentivity is the capacity of an object to retain magnetism after the action of the magnetizing force has ceased.
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