question_answer

The work stored in a stretched wire in the form of strain energy per unit volume of wire is given by:

A)  \[{{U}_{V}}=\frac{1}{2}\,\,E\,\,{{(strain)}^{2}}\]       

B)  \[{{U}_{u}}=\frac{1}{2}\,\,E\,\,(strain)\]

C)  \[{{U}_{v}}=\frac{1}{2}\,\,E\,\,{{(stress)}^{2}}\]        

D)  \[{{U}_{u}}=\frac{1}{2}\,\,E\,\,(stress)\]