Question

The distribution function is given by ________

(a) \(\frac{1}{Ae\frac{E}{nT}+1}\)

(b) \(\frac{1}{Ae\frac{E}{nT}-1}\)

(c) \(\frac{1}{e\frac{E}{nT}+A}\)

(d) \(\frac{1}{e\frac{E}{nT}-A}\)

This question was addressed to me in unit test.

Enquiry is from Fermi-Dirac Distribution topic in portion Quantum Physics of Engineering Physics I

Answer 1

The correct option is (a) \(\frac{1}{Ae\frac{E}{nT}+1}\)

The best explanation: The distribution function is given by \(\frac{1}{Ae\frac{E}{nT}+1}\), where A = \(e^{\frac{-E_F}{nT}}\) The energy EF is called the Fermi energy and is constant for a given system.