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Engineering Materials in EE

Engineering Materials in EE
When will be the electron pair bonding occurs ?

None of these
 Lack holes
 Share electrons
 Share holes

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Engineering Materials in EE
Susceptibility is negative for

 non magnetic substances.
 diamagnetic substances.
 none of above.
 ferromagnetic substances.

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Engineering Materials in EE
Which of the following is the ferroelectric material ?

 Barium titanate.
All of these
 Potassium dihydrogen phosphate.
 Rochelle salt.

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Engineering Materials in EE
Find the odd one out.

 Refractive index.
 Absorptivity.
 Emissivity.
 Dielectric strength.

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Engineering Materials in EE
A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is

 rotating.
 alternating.
 / >(A), (B), and (C) are all correct.
 pulsating.

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Engineering Materials in EE
When a ferromagnetic substance is magnetized small changes in dimensions occur. Such a phenomenon is known as

 magnetostriction.
 magnetic expansion.
 magneto-calorisation.
 magnetic hysteresis.

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MORE MCQ ON Engineering Materials in EE

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