A `20kg` load is suspended from the lower end of a wire `10cm` long and `1mm^(2)` in
Channel: Doubtnut
Date: 16/02/2020

A `20kg` load is suspended from the lower end of a wire `10cm` long and `1mm^(2)` in cross-sectional area. The upper half of the wire is made of iron and the lower half with aluminium. The total elongation in the wire is `(Y_(\"iron\") = 20xx10^(10) N//m^(2), Y_(Al) = 7xx10^(10) N//m^(2))`