ation: e ° * yrzk ----- w where e0 is voltage drop across the gap independent of thestrength of current flowing through the medium (gaseous mixt-ure in our case) K being a function of the spark gap lengthand is constant for any set of plugs which have definiteshape and length of the gap. The… … U. OF S. ». FOBM 3 19 e0 - 36 volts for carbon arc, etc. K s 48.5 (t ♦ .125) for magnetite arc- 51 it - *Q) for carbon arc, etc.the complete equation of the magnetite and carbon arcs there-fore, a 7r and e = 3b + SI. ^f=^ similar constants exist for the spark plug points as theterminals of arc and…