A wire of length l and cross-sectional area a is stretched an amount δl by a force f. the strain is

NSimon asked Nov 20, 2023

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NSimon asked Nov 20, 2023

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26 votes

Answer:

Strain is change in length by actual length. The initial length is l, final length is increased by dl. So

Strain = dl/l

Strain is a dimensionless quantity. It has no unit and pure ratio.

Iouri answered Nov 26, 2023

by Iouri

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