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Materials and Components

Materials and Components
Which inductor is linear?

Sheet steel cored
Air cored
Iron alloy cored
Cast iron cored

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Materials and Components
The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as

Debye rule
Onne’s rule
Matthiessen’s rule
Curie rule

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Materials and Components
The fact that domains exhibits spontaneous magnetisation is

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

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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 phenomenon of dielectric hysteresis occurs with

None of these
AC
DC
Both AC and DC

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Materials and Components
As the viscosity of a liquid increases, the relaxation time

Increases
First decreases then increases
Decreases
Remains constant

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