Write two properties of a material suitable for making (a) a perm… - Vidyadip

Question

Write two properties of a material suitable for making (a) a permanent magnet, and (b) an electromagnet.

✓

Answer

For making permanent magnet:

High retentivity.
High coercitivity.
High permeability.

For making electromagnet:

High permeability.
Low retentivity.
Low coercivity.

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