Assume that the number of hole-electron pair in an intrinsic semiconductor is proportional to `e^(- Delta E//2KT)`. Here `Delta E` = energy gap and `k=8.62 xx 10^(-5) eV//"kelvin"`
The energy gap for silicon is `1.1 eV`. The ratio of electron hole pairs at`300 K` and `400 K` is :

The number of electron hole pairs in a semiconductor is proportional to where for germainium triangleE=0.65 eV and the temperature increases form 280 K to 300 K find the percentage increase in the number of charge carriers

The ground state energy of hydrogen atom is -13.6eV. What is the K.E. of electron in this state?

The band gap in germanium is (Delta E=0.68eV.) .Assuming that the number of hole-electron pairs is proportional to e^(-Delta E//2kT),find the percentage increase in the number of charge carries in pure germanium as the temperature is increased form 300K to 320K.

The band gap in germanium is (Delta E=0.68eV.) .Assuming that the number of hole-electron pairs is proportional to e^(-Delta E//2kT),find the percentage increase in the number of charge carries in pure germanium as the temperature is increased form 300K to 320K.

The band gap in germanium is (Delta E=0.68eV.) .Assuming that the number of hole-electron pairs is proportional to e^(-Delta E//2kT),find the percentage increase in the number of charge carries in pure germanium as the temperature is increased form 300K to 320K.

The forbidden energy gap in Ge in 0.72 eV Given, hc=12400" eV"-Å The maximum wavelength of radiation that will generate electron hole pair is

The conductivity of a pure semiconductor is roughly proportional to T^3/2 e^(-Delta E//2kT)where (Delta)E is the band gap.The band gap for germanium is 0.74eV at 4K and 0.67eV at 300K.By what factor does the conductivity of pure germanium increase as the temperature is raised form 4K to 300K?

The conductivity of a pure semiconductor is roughly proportional to T^(3/2) e^(-Delta E//2kT) where (Delta)E is the band gap. The band gap for germanium is 0.74eV at 4K and 0.67eV at 300K.By what factor does the conductivity of pure germanium increase as the temperature is raised form 4K to 300K?