# Electric arc

1. Jan 2, 2007

### 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 ?

2. Jan 2, 2007

### ZapperZ

Staff Emeritus
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.

Last edited: Jan 2, 2007