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Materials and Components

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

Covalent bonding
Recombination
Free electrons
Thermal energy

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Materials and Components
In a metal, the valence electrons

Are not shared
Are shared by all atoms
Are shared only between neighbouring atoms
Either B or C

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Materials and Components
A characteristic property of crystal is its periodicity of structure.

True
False

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Materials and Components
The unit for mmf is

Wb
V
A
T

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Materials and Components
Ferrimagnetic materials have anti parallel orientation of equal moments of permanent dipoles.

False
True

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

First decreases then increases
Remains constant
Increases
Decreases

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