Hi all -- I had a question about the Planck black body / Johnson-Nyquist resistor temperature formula:(adsbygoogle = window.adsbygoogle || []).push({});

[itex]

\[

E_{\nu}^{2}d\nu=\frac{4R_{\nu}hd\nu}{e^{h\nu/kT}-1}\]

[/itex]

I'm just wondering why the formula has [itex]$ exp(h\nu/kT)-1$[/itex] in the denominator? I would have expected [itex]$ exp(h\nu/kT)+1$[/itex] as electrons are fermions...

Cheers

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Planck black body formula question

**Physics Forums | Science Articles, Homework Help, Discussion**