Hot & Cold Plasmas: Examples & Temperature

[Sele]

I have a question about plasma and its temperature:
Which plasmas are hot plasma and which are cold plasmas.For example ionosphere ,Lightning,polar aurorae etc.

 

[Blibbler]

Sounds like a homework question, so I'll try not to be specific!

The temperature of a gas or plasma is a bulk property and is related to the rms of the velocity of the individual particles in the system in question.

So a hot plasma has fast moving ions.