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Materials and Components

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

Recombination
Free electrons
Thermal energy
Covalent bonding

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Materials and Components
Schrodinger wave equation is a

Linear equation
Differential equation
Partial differential equation
None of these

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

False
True

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Materials and Components
In van der walls crystals, there exists a high degree of stability of the outer electron shell.

True
False

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Materials and Components
The elements which become superconducting at extremely low temperatures are

Good conductors at room temperature
Ferromagnetic at room temperature
Relatively poor conductors at room temperature
Insulators at room temperature

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Materials and Components
The most important set of specifications of transformer oil include

dielectric strength and flash point
dielectric strength and viscosity
viscosity and flash point
flash point and viscosity

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