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The energy stored per unit volume in cop...

The energy stored per unit volume in copper wire, which produces longitudinal strain of 0.1% is
`(Y = 1.1 xx 10^(11) N//m^(2))`

A

`11 xx 10^(3) J//m^(3)`

B

`5.5 xx 10^(3) J//m^(3)`

C

`11 xx 10^(4) J//m^(3)`

D

`5.5 xx 10^(4) J//m^(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
`(E)/("Volume") = (1)/(2) xx Y ("strain")^(2)`
`= (1)/(2) xx 1.1 xx 10^(11) xx (10^(-3))^(2) = 5.5 xx 10^(4) J//m^(3)`
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