Engineering Materials in EE
A ferrite core has low eddy current loss than an iron core because

 ferrites have low permeability.
 / >ferrites have high resistance.
 ferrites are magnetic.
 ferrites have hig hysteresis.

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Engineering Materials in EE
Which statement is not true of ferromagnetic materials.

 They lose their nonlinearly property above the Curie temperature.
  They have fixed value of μr.
 Energy loss is proportional to the area of hysteresis loop.
 They have large magnetic susceptibility.

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