A rod with a consistent cross-sectional area A and length L is subjected to a force P. What is the expression for the Young's Modulus E of the material?

Explanation

Young's Modulus (E) is defined as the ratio of stress to strain. For a rod under axial load P, with cross-sectional area A and length L, the formula for E is given by (P × L) divided by the product of the cross-sectional area and the elongation. Hence, the correct expression is E = (P × L) /.