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Longitudinal Strain

A tungsten wi...

Question

A tungsten wire of length 20 cm is stretched by 0.1 cm. Find the strain on the wire.

A

0.002

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B

0.005

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C

0.001

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D

0.004

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Solution

The correct option is B 0.005
Given,

Length of wire $= 20 c m$

Elongation $= 0.1 c m$

We have the equation,

$S t r a i n = \frac{E l o n g a t i o n}{L e n g t h} = \frac{0.1}{20} = 0.005$

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