Engineering Materials in EE
The Bohr model of the atom

 had some made-up rules without explanations.
 could not explain the line spectrum of atoms larger than hydrogen.
All of these
 explained the color lines in the hydrogen spectrum.

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

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

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