In solid insulator materials having only one kind of atom, the types of polarization which exist are

Materials and Components
In solid insulator materials having only one kind of atom, the types of polarization which exist are

Electronic, ionic and permanent

Electronic and ionic

Electronic only

Electronic, ionic and permanent

Electronic and ionic

Electronic only

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

True

False

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Materials and Components
As the atoms of rare gases become larger, electronic polarizability

Remains the same

Increases

Decreases

May increase or decrease

Remains the same

Increases

Decreases

May increase or decrease

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Materials and Components
In an intrinsic semiconductor, at a given temperature T

The number of electron hole pairs generated per second due to thermal motion is always more than the number of electron-hole pairs lost per second due to recombination

The number of electron-hole pairs generated per second due to thermal motion is always less than the number of electron-hole pairs lost per second due to recombination

Any of the above

The number of electrons-hole pairs generated per second due to thermal motion are equal to the number of electron-hole pairs lost per second due to recombination

The number of electron hole pairs generated per second due to thermal motion is always more than the number of electron-hole pairs lost per second due to recombination

The number of electron-hole pairs generated per second due to thermal motion is always less than the number of electron-hole pairs lost per second due to recombination

Any of the above

The number of electrons-hole pairs generated per second due to thermal motion are equal to the number of electron-hole pairs lost per second due to recombination

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Materials and Components
On the basis of the type of chemical bonds, solids may be classified into

Ionic crystals, valence crystals, metal and vander wall crystals

Ionic and valence crystals

Ionic crystal, valence crystals and metals

Ionic crystals

Ionic crystals, valence crystals, metal and vander wall crystals

Ionic and valence crystals

Ionic crystal, valence crystals and metals

Ionic crystals

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Materials and Components
If a small amount of Cu is added to Ni conductor, then

Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects

Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni

Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres

Resistivity of Ni remains the same

Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects

Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni

Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres

Resistivity of Ni remains the same

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Materials and Components

Materials and Components In solid insulator materials having only one kind of atom, the types of polarization which exist are

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

Materials and Components As the atoms of rare gases become larger, electronic polarizability

Materials and Components In an intrinsic semiconductor, at a given temperature T

Materials and Components On the basis of the type of chemical bonds, solids may be classified into

Materials and Components If a small amount of Cu is added to Ni conductor, then

Materials and Components
In solid insulator materials having only one kind of atom, the types of polarization which exist are

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

Materials and Components
As the atoms of rare gases become larger, electronic polarizability

Materials and Components
In an intrinsic semiconductor, at a given temperature T

Materials and Components
On the basis of the type of chemical bonds, solids may be classified into

Materials and Components
If a small amount of Cu is added to Ni conductor, then