If the diameter of a wire is doubled keeping its length the same , what happens to its Young's modulus of elasticity...........
If the diameter of a wire is doubled keeping its length the same , what happens to its Young's modulus of elasticity...........
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Like we know the expression for Youngs modulus…..
Y = (F×dL)/A×L
So kepping F L comstants…
Y is inversly proportional Area of cross section so incresing diameter increses area..
But surprise to notice YOUNG’S modulus is a total contant…. :-))*
dL may change accordingly…
Therefore YOUNG’S MODULUS does not change
But other quantities adjust themselves to cop up with the changes….
Hope u got it…
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