Answer
$P(E) = 0.986 \approx 0.99$
Work Step by Step
For this question, given E = 5.4 eV.
Solve for P:
$e^{E_1 - E_F/kT} = \frac{(5.4 eV - 5.5eV)}{0.02353eV} = -4.25$
$ P(E) = \frac{1}{e^{-4.25} + 1}$
$P(E) = 0.986 \approx 0.99$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 41 - Conduction of Electricity in Solids - Problems - Page 1273: 19b
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