Engineering Materials in EE
The dielectric strength of ferroelectric materials depends to a large extent on

 frequency of applied voltage.
 intensity of electric field.
 presence of magnetic materials in the vicinity.
 area of hysteresis loop for the material.

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Engineering Materials in EE
The Bohr model of the atom

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

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