ch41-p011 - 11. The Fermi-Dirac occupation probability is...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
11. The Fermi-Dirac occupation probability is given by Pe EkT FD =+ 11 / / c h , and the Boltzmann occupation probability is given by B = −∆ / . Let f be the fractional difference. Then f PP P e e e = = + BF D B / / / . 1 1 Using a common denominator and a little algebra yields f e e = + / / . 1 The solution for e E / kT is e f f = / . 1 We take the natural logarithm of both sides and solve for T . The result is T E k f f = F H G I K J ln . 1 (a) Letting f equal 0.01, we evaluate the expression for
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online