Question

Longitudinal strain in a wire is defined as ______.

Options

• Force per unit area

• Change in length per unit original length

• Total change in length

• Young's modulus times stress

Answer 1

Longitudinal strain in a wire is defined as change in length per unit original length.

Explanation:

Longitudinal strain is calculated as l/L, where l is the change in length, and L is the original length of the wire.