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Lightning question

  1. May 21, 2009 #1
    !! Lightning !!

    How does lightning occur ?
    Please give a brief answer:smile:
    Thanks in advance :smile:
     
  2. jcsd
  3. May 21, 2009 #2
    Re: !! Lightning !!

    ZZZzzzaaappp...(sorry - it's been a long morning).
     
  4. May 21, 2009 #3

    Ivan Seeking

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    Staff Emeritus
    Science Advisor
    Gold Member

    Re: !! Lightning !!

    We're not sure. We know that areas having a high electric potential as compared to the ground evolve under the right conditions. Eventually the potential is high enough for a discharge to occur [I think about 30KV per meter], but the mechanism of charge separaton is not understood - at least there is no explanation that is universally accepted as being definitive.
     
  5. May 21, 2009 #4
    Re: !! Lightning !!

    Okay, My question is related to this topic so I will ask it here rather than creating a new topic.

    I want to know the temperature attained by the air around a
    space(at normal temperature and pressure) where a corona discharge takes place.
    Also can the process of corona discharge be taken as an adiabatic process?

    Thanks in advance for the replies.
     
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