Answer to Question #168054 in Physics for Tithi

Question

Estimate the Young’s modulus of the material of the wire. 

Answer 1

Two strings were hung from a support and two pans were attached to both the strings.

Weights are kept on both the pans.

When the number of weights in second pan was increased, the string got stretched and moved in downward direction.

The change in length was measured by the metre scale which was kept on reference wire.

Using this experiment, the Young’s modulus value was calculated.

$$Y=\frac{mgL}{πr^2 ΔL}$$