How does lightning work? (one strike or multiple strikes?)

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Discussion Overview

The discussion revolves around the nature of lightning strikes, specifically whether a thundercloud can release its stored energy in multiple bursts rather than a single strike. Participants explore the dynamics of voltage and current in lightning, as well as the behavior of multiple strikes from a thundercloud.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions if a thundercloud can release its energy in bursts, suggesting the possibility of multiple lightning strikes of varying voltages instead of one large strike.
  • Another participant describes observing multiple strikes from a thundercloud, noting that typically one large strike occurs with subsequent smaller strikes that follow, which may serve to neutralize charge.
  • A later reply clarifies the distinction between voltage and current, explaining that current flows during a lightning strike and that the electric field builds up to a point where discharge occurs.
  • It is mentioned that some lightning strikes can consist of multiple discharges down the same path, with observations of several pulses occurring in succession.

Areas of Agreement / Disagreement

Participants express differing views on the mechanics of lightning strikes, particularly regarding the nature of energy release from thunderclouds. There is no consensus on whether a thundercloud can discharge energy in multiple bursts or if it primarily results in single or multiple strikes down the same path.

Contextual Notes

Some participants highlight a misunderstanding of voltage and current, emphasizing the need for clarity on these concepts in relation to lightning. The discussion includes references to the initiation of discharge and the behavior of electric fields, which may require further exploration.

ARC123
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I am mainly asking if it's possible for a thunder cloud to release its sorted energy in burst rather than in one strike. Like if a thundercloud had 1 billion volts would it be possible to great small sparks that allow it to shoot of 5 lighting strikes of different voltages rather than one strike of 1 billion volts.
 
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Sometimes when there is sever lightening, you can see multiple strikes released from a thunder cloud consecutively. Is that what you mean? Usually, you will see one large strike with branches. Then secondary strikes that follow the initial bolt of lightning follows shortly. All of this is an attempt to neutralize charge.
 
Oh, and this is rather thrilling:

 
ProfuselyQuarky said:
Sometimes when there is sever lightening, you can see multiple strikes released from a thunder cloud consecutively. Is that what you mean? Usually, you will see one large strike with branches. Then secondary strikes that follow the initial bolt of lightning follows shortly. All of this is an attempt to neutralize charge.

Something like that. What I am really asking is say you had a thundercloud. It had 1 billion volts stored in it. Now when it discharges, a single or what you said 2 bolts of lighting. What I want to know is,(with the help of man or just by itself) would it be possible for the thunder cloud to release all of its stored energy in burst of electricity. Sort of like a batter expect it gives off energy in burst of multiple strike.
 
ARC123 said:
I am mainly asking if it's possible for a thunder cloud to release its sorted energy in burst rather than in one strike. Like if a thundercloud had 1 billion volts would it be possible to great small sparks that allow it to shoot of 5 lighting strikes of different voltages rather than one strike of 1 billion volts.

ARC123 said:
Something like that. What I am really asking is say you had a thundercloud. It had 1 billion volts stored in it. Now when it discharges, a single or what you said 2 bolts of lighting. What I want to know is,(with the help of man or just by itself) would it be possible for the thunder cloud to release all of its stored energy in burst of electricity. Sort of like a batter expect it gives off energy in burst of multiple strike.

hi there
you have a bit of a misunderstanding of voltage. Voltage DOESNT flow in the lightning strike or in any other situation, Current does.
As the voltage( potential difference between the cloud and the ground, or between 2 points in a cloud, build up, an electric field is
generated between say, the cloud and the ground. This electric field needs to build up to a point where it overcomes the air gap resistance
between the cloud and the ground. Once that potential difference is reached, a discharge occurs, and current flows.

There are some finer details of the initiating of the discharge, you can google lightning leaders and streamers

During the discharge, huge amounts of current flows, often 10's of 100's of Amps
Some strikes are primarily a single discharge down the channel path. Others are multiple discharges down the same path.
I have often counted and or videoed up to 7 or 8 pulses down the same path

Once the discharge has occurred, the voltage ( potential difference = electric field again starts to build up and the cycle repeatsDave
 

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