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A wire of natural length l, young's modu...

A wire of natural length `l`, young's modulus `Y` and area of cross-section `A` is extended by `x`. Then, the energy stored in the wire is given by

A

`1/2 (YA)/l x^(2)`

B

`1/3 (YA)/l x^(2)`

C

`1/2 (Yl)/A x^(2)`

D

`1/2 (A)/(Yl) x^(2)`

Text Solution

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The correct Answer is:
A
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