1. Tardigrade
  2. Question
  3. Physics
  4. The elastic energy stored per unit volume in a stretched wire is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The elastic energy stored per unit volume in a stretched wire is

J & K CETJ & K CET 2010Mechanical Properties of Solids

Solution:

The energy stored in per unit volume of wire
$\left(U_{V}\right)=\frac{1}{2} \frac{F l}{\text { volume }}=\frac{1}{2} \times$ stress $\times$ strain
$=\frac{1}{2} \times Y \times(\text { strain })^{2}=\frac{1}{2 Y}(\text { stress })^{2}$