What is the temperature of air during a corona discharge?

  • Thread starter johncena
  • Start date
  • Tags
    Lightning
In summary, lightning is caused by a discharge of high electric potential between the ground and an area with a high electric potential. The exact mechanism of charge separation is not fully understood. A related question is also asked about the temperature and process of corona discharge.
  • #1
johncena
131
1
! Lightning !

How does lightning occur ?
Please give a brief answer:smile:
Thanks in advance :smile:
 
Science news on Phys.org
  • #2


johncena said:
How does lightning occur ?
Please give a brief answer:smile:
Thanks in advance :smile:

ZZZzzzaaappp...(sorry - it's been a long morning).
 
  • #3


johncena said:
How does lightning occur ?
Please give a brief answer:smile:
Thanks in advance :smile:

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.
 
  • #4


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.
 

1. What causes lightning?

Lightning is caused by an electrical discharge between a positively charged area and a negatively charged area. This can occur within a single cloud, or between different clouds, or between a cloud and the ground.

2. How does lightning form?

Lightning forms when warm air rises and collides with colder air, creating an unstable atmosphere. This causes water droplets and ice particles to collide and create electrical charges. The positive charges rise to the top of the cloud while the negative charges sink to the bottom, creating a separation of charges that leads to lightning.

3. Is lightning random or predictable?

While lightning may seem random, it is actually quite predictable. Meteorologists use advanced technology to track and predict where lightning is likely to strike, based on atmospheric conditions and the movement of storm systems.

4. How hot is lightning?

The air surrounding a lightning bolt can reach temperatures of up to 50,000 degrees Fahrenheit, which is five times hotter than the surface of the sun. This extreme heat is what causes the loud thunderclap that we hear after a lightning strike.

5. Can lightning be dangerous?

Yes, lightning can be very dangerous. It can cause serious injuries or even death if a person is struck by a lightning bolt or if it strikes an object near them. It is important to seek shelter during a lightning storm and avoid being outdoors or near tall objects such as trees or metal structures.

Similar threads

  • Electromagnetism
Replies
10
Views
2K
Replies
17
Views
4K
Replies
1
Views
1K
  • Special and General Relativity
Replies
21
Views
523
Replies
2
Views
4K
  • Astronomy and Astrophysics
Replies
16
Views
1K
Replies
6
Views
4K
  • Electrical Engineering
Replies
17
Views
1K
  • Electrical Engineering
Replies
5
Views
853
Back
Top