Question

What is longitudinal strain?

Options

• \[\frac {Force}{Area}\]

• \[\frac{\text{Change in length}}{\text{Original length}}\]

• Total stretch of the wire

• Load on the wire

Answer 1

\[\frac{\text{Change in length}}{\text{Original length}}\]

Explanation:

Longitudinal strain is defined as the ratio of change in length (elongation) to the original length of the wire.