In an intrinsic semiconductor, at a given temperature T

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

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

Any of the above

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

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 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

Any of the above

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

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

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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

Onne’s rule

Matthiessen’s rule

Curie rule

Debye rule

Onne’s rule

Matthiessen’s rule

Curie rule

Debye rule

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

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

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

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Materials and Components
Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances.

1 and 3 only

2 and 3 only

1, 2 and 3

1 and 2 only

1 and 3 only

2 and 3 only

1, 2 and 3

1 and 2 only

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Materials and Components
Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called

Curie temperature

Neel temperature

Transition temperature

Debye temperature

Curie temperature

Neel temperature

Transition temperature

Debye temperature

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Materials and Components
An atom of a rare gas is placed is an electric field E. Then

The nucleus will be shifted in the direction of E by an amount which is proportional to E.

The nucleus will not be shifted.

The nucleus will be shifted in the direction of E by an amount which is independent of E.

The nucleus will be shifted in a direction opposite to that of E.

The nucleus will be shifted in the direction of E by an amount which is proportional to E.

The nucleus will not be shifted.

The nucleus will be shifted in the direction of E by an amount which is independent of E.

The nucleus will be shifted in a direction opposite to that of E.

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Materials and Components

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

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

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

Materials and Components Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances.

Materials and Components Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called

Materials and Components An atom of a rare gas is placed is an electric field E. Then

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

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

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

Materials and Components
Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances.

Materials and Components
Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called

Materials and Components
An atom of a rare gas is placed is an electric field E. Then