Engineering Materials in EE
In order to minimise loss due to hysteresis, the magnetic material should have

  large B-H loop area.
  high retentivity.
  low hysteresis coefficient.
  high resistivity.

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials in EE
The Bohr model of the atom

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

ANSWER DOWNLOAD EXAMIANS APP