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Materials and Components

Materials and Components
A leakage capacitor can be represented by a capacitance C and resistance R in parallel C.

True
False

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Materials and Components
The fact that domains exhibits spontaneous magnetisation is

Boltzmann’s statistics
Curie-Weiss law
First hypothesis is of Curie
Second hypothesis is of Weiss

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Materials and Components
Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called

Curie temperature
Transition temperature
Neel temperature
Debye temperature

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Materials and Components
For making a capacitor it is better to have a dielectric having

Permittivity same as that of air
Low permittivity
High permittivity
Permittivity which is neither high nor low

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Materials and Components
The materials which become polarized on the application of mechanical stress are called piezoelectric.

False
True

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Materials and Components
The dielectric losses do not depend on frequency.

True
False

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