Percent elongation is the increase in length of the body per unit orignal length of that body.
Mathematically, percentage elongation can be expresses as;
[latex]Percentage.Elongation=frac{Increase.in.Length}{Orignal.Length}times 100[/latex]
¨
[Percentage.Elongation=frac{Δl}{l}times 100]
..
[latex]Percentage Elongation=frac{Final.Length-Original.Length}{Original.Length}[/latex]
