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Materials and Components

Materials and Components
The merger of hole and free electron is called

Recombination
Covalent bonding
Thermal energy
Free electrons

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Materials and Components
If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.

False
True

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Materials and Components
Piezoelectricity means the slight change in dimensions of a specimen when an electric field is applied.

True
False

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Materials and Components
The phenomenon of dielectric hysteresis occurs with

Both AC and DC
None of these
AC
DC

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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
The resistance of a photoconductor

Increases with increase in light intensity
May increase or decrease with increase in light intensity
Remains constant
Decreases with increase in light intensity

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