Which of the following is the Fermi function f(E)?
A. $$\frac{1}{{1 + {e^{\frac{{E - {E_F}}}{{KT}}}}}}$$
B. $$\frac{1}{{1 - {e^{\frac{{E - {E_F}}}{{KT}}}}}}$$
C. $$\frac{1}{{1 + {e^{\frac{{{E_F} - E}}{{KT}}}}}}$$
D. $$\frac{1}{{1 - {e^{\frac{{{E_F} - E}}{{KT}}}}}}$$
Answer: Option A
Related Questions on Materials and Components
For making a capacitor it is better to have a dielectric having
A. High permittivity
B. Low permittivity
C. Permittivity same as that of air
D. Permittivity which is neither high nor low
As the viscosity of a liquid increases, the relaxation time
A. Remains constant
B. Increases
C. Decreases
D. First decreases then increases

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