Define: (1) retentivity (2) coercivity. - Vidyadip

Question

Define:
(1) retentivity
(2) coercivity.

✓

Answer

1. Retentivity : The residual magnetic flux density or magnetization in a magnetic material when the magnetizing field intensity is reduced to zero is called retentivity or remanence.
2. Coercivity: The reversed magnetizing field strength required to reduce the remanent magnetic flux density or magnetization in a magnetic material from its remanent value to zero, i.e, to demagnetize the magnetic material completely, is

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