Electric arc

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force
What would be the minimum direct or alternating voltage and current needed to produce an electric arc in air at a distance of one inch ?
 

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ZapperZ
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What would be the minimum direct or alternating voltage and current needed to produce an electric arc in air at a distance of one inch ?
The ballpark figure that is often quoted is of the order of 10^6 V/m. So you can scale that for whatever distance you want.

http://hypertextbook.com/facts/2000/AliceHong.shtml

Zz.
 
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