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Calculate the work done, if a wire is lo...

Calculate the work done, if a wire is loaded by 'Mg' weight and the increase in lengt is`l`

A

Mgl

B

Zero

C

Mg/2

D

2Mgl

Text Solution

Verified by Experts

The correct Answer is:
C
`W= (1)/(2) xx (F)/(A) xx (Delta l)/(L) xx AL`
`rArr W= (1)/(2) mgl ("As " Delta l= l)`
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