The probability of electrons to be found in the conduction band of an intrinsic semiconductor at a finite temperature

Options

A. increase exponentially with increasing band gap
B. decrease exponentially with increasing band gap
C. decreases with increasing temperature
D. is independent of the temperature and the band gap

Answer

b

Explanation

At a finite temperature, the probability of jumping an electron from valence band to conduction band decreases exponentially with the increasing band gap `(E_g)`
`n=n_oe^(-E_g//k_(B)T)`