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At absolute zero, Si acts as

  • Option 1)

    non­-metal

  • Option 2)

    metal

  • Option 3)

    insulator

  • Option 4)

    none of these.

 

Answers (1)

best_answer

As we have learnt,

 

Number of electrons or holes -

n_{e}= n_{\lambda }= AT^{3/2}e^{-Eg /2KT}
 

- wherein

Eg = Energy gap

K = Boltzmann Constant

T = Temperature in kelvin

On increasing temperature,  the number of current carried increases

 

 

At absolute zero, no thermal energy available for electron to move from velency to conduction band, hence are the electron will be in valence band only. No free electron or hole is present & hence Si will behave as an insulator.


Option 1)

non­-metal

Option 2)

metal

Option 3)

insulator

Option 4)

none of these.

Posted by

Avinash

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